{"id":25103,"date":"2026-08-03T09:52:06","date_gmt":"2026-08-03T01:52:06","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=25103"},"modified":"2026-08-03T09:52:11","modified_gmt":"2026-08-03T01:52:11","slug":"protolon-sb-sam-complete-engineering-guide-to-the-medium-voltage-trailing-cable-series","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/protolon-sb-sam-complete-engineering-guide-to-the-medium-voltage-trailing-cable-series\/","title":{"rendered":"PROTOLON (SB-SAM) \u2014 Complete Engineering Guide to the Medium-Voltage Trailing Cable Series"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"192a32\" data-has-transparency=\"false\" style=\"--dominant-color: #192a32;\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"568\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-1200x568.avif\" alt=\"\" class=\"wp-image-25105 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-1200x568.avif 1200w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-300x142.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-768x364.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-1536x727.avif 1536w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-400x189.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-800x379.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-832x394.avif 832w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-1664x788.avif 1664w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120-1248x591.avif 1248w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1120.avif 1723w\" \/><\/figure>\n\n\n\n\n<!DOCTYPE html><html lang=\"en\"><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width,initial-scale=1\">\n<title>PROTOLON (SB-SAM) \u2014 Complete Professional Engineering Guide<\/title>\n<meta name=\"description\" content=\"Comprehensive English engineering guide to PROTOLON (SB-SAM) medium-voltage trailing cables: current and archival matrices, screened design, detailed cross-sections, mechanical limits and calculations.\">\n<style>\n:root{--bg:#041018;--panel:#0b202b;--panel2:#123443;--ink:#f4f9fb;--muted:#a9bec8;--line:#315b6f;--orange:#ffad54;--cyan:#55dff7;--green:#62df9c;--sand:#e8c37b;--red:#ff777f;--violet:#aa9bff}\n*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,\"Segoe UI\",sans-serif;line-height:1.68}.wrap{max-width:1740px;margin:auto;padding:0 28px}a{color:var(--cyan)}.hero{padding:68px 0;background:radial-gradient(circle at 10% 5%,rgba(255,173,84,.22),transparent 32%),radial-gradient(circle at 90% 8%,rgba(85,223,247,.15),transparent 32%),linear-gradient(135deg,#041018,#3c2413);border-bottom:1px solid var(--line)}h1{font-size:46px;line-height:1.13;margin:22px 0}h2{margin-top:52px;border-left:7px solid var(--orange);padding-left:15px;font-size:30px}h3{color:var(--sand)}.lead{font-size:21px;color:#dcebf0;max-width:1380px}.badges,.meta{display:flex;gap:10px;flex-wrap:wrap}.badges span,.meta span{background:#071821;border:1px solid var(--line);border-radius:22px;padding:8px 13px;font-weight:800}.cards,.grid,.source-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:16px;margin:22px 0}.card,.box,.note,.warn,.good,.source-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px}.card{border-top:5px solid var(--orange)}.value{font-size:30px;font-weight:900;color:var(--orange)}.note{border-left:7px solid var(--cyan)}.good{border-left:7px solid var(--green)}.warn{border-left:7px solid var(--red);margin:13px 0}.source-card{border-top:4px solid var(--violet)}.source-badge{display:inline-block;background:#164d36;color:#c8f8dc;border-radius:15px;padding:4px 10px;font-size:12px;font-weight:800}.toc{background:var(--panel);border:1px solid var(--line);border-left:7px solid var(--orange);border-radius:10px;padding:20px;margin:28px 0}.toc ol{columns:2}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:9px;margin:15px 0}table{width:100%;border-collapse:collapse;background:#071821;min-width:1300px}th,td{border:1px solid var(--line);padding:9px;vertical-align:top}th{background:var(--panel2)}td:first-child{color:var(--cyan);font-weight:700}.dataset{background:#071821;border:1px solid var(--line);border-radius:9px;margin:14px 0}.dataset summary{cursor:pointer;padding:16px;font-weight:900;color:var(--orange);background:#0b202b}.formula{white-space:pre-line;background:#071821;border:1px solid var(--line);border-radius:9px;padding:18px}.svg-panel,.image-box{border:1px solid var(--line);background:#071821;padding:12px;margin:23px 0;border-radius:9px}.svg-panel svg,.image-box svg{width:100%;height:auto;display:block}.contact{display:grid;grid-template-columns:1fr 1fr;gap:14px}.contact div{background:#071821;border:1px solid var(--line);padding:16px;border-radius:8px}footer{margin-top:55px;background:#02080c;padding:34px 0}.small{font-size:12px;color:#91a9b4}.pill{display:inline-block;border-radius:13px;padding:3px 8px;background:#1b4864;color:#c9edff;font-size:12px;font-weight:800}@media(max-width:800px){h1{font-size:31px}.toc ol{columns:1}.contact{grid-template-columns:1fr}}\n<\/style><\/head><body>\n<section class=\"hero\"><div class=\"wrap\">\n<div class=\"badges\"><span>PROTOLON (SB-SAM)<\/span><span>(N)TSCGEWOEU<\/span><span>(N)TSCGECEWOEU<\/span><span>MV trailing<\/span><span>3.6\/6\u201318\/30 kV source range<\/span><span>Open-cast mining<\/span><\/div>\n<h1>PROTOLON (SB-SAM) \u2014 Complete Engineering Guide to the Medium-Voltage Trailing Cable Series<\/h1>\n<p class=\"lead\">A source-controlled technical reference covering the current optimized-wall-thickness cable, the archival high-voltage extension, the copper-core-screen version, detailed material architecture, mechanical boundaries, electrical data, document conflicts and field selection.<\/p>\n<div class=\"meta\"><span>36 current rows<\/span><span>18 archival HV rows<\/span><span>54 screened rows<\/span><span>108 non-duplicate matrix rows<\/span><span>5 engineering diagrams<\/span><\/div>\n<\/div><\/section>\n\n<main class=\"wrap\">\n<div class=\"cards\">\n<div class=\"card\"><div>Current core range<\/div><div class=\"value\">3.6\/6\u201312\/20 kV<\/div><div>2019\/2025 matrix<\/div><\/div>\n<div class=\"card\"><div>Archival extended range<\/div><div class=\"value\">14\/25\u201318\/30 kV<\/div><div>2016 matrix<\/div><\/div>\n<div class=\"card\"><div>Current tensile rule<\/div><div class=\"value\">20 N\/mm\u00b2<\/div><div>table-verified on 3 phase cores<\/div><\/div>\n<div class=\"card\"><div>Torsion<\/div><div class=\"value\">\u00b1100 \/ \u00b125\u00b0\/m<\/div><div>unshielded \/ screened<\/div><\/div>\n<\/div>\n\n<div class=\"toc\"><h3>Contents<\/h3><ol>\n<li>Scope and source hierarchy<\/li><li>Mining application<\/li><li>Standard construction<\/li><li>Copper-core-screen construction<\/li>\n<li>Layer-by-layer materials<\/li><li>Electrical and thermal ratings<\/li><li>Mechanical operating envelope<\/li><li>Current 36-row matrix<\/li>\n<li>Archival high-voltage extension<\/li><li>Screened 54-row matrix<\/li><li>Document conflicts<\/li><li>Engineering calculations<\/li>\n<li>Selection workflow<\/li><li>Installation and termination<\/li><li>FMEA<\/li><li>Source map<\/li>\n<\/ol><\/div>\n\n<h2>1. Scope and source hierarchy<\/h2>\n<div class=\"source-grid\">\n<div class=\"source-card\"><span class=\"source-badge\">CURRENT<\/span><h3>2025 \/ 2019 core series<\/h3><p>The primary matrix contains 36 constructions from 3.6\/6 to 12\/20 kV. The 2025 brochure supplies the newest construction wording; the 2019 catalogue supplies selected Part and MLFB identifiers.<\/p><\/div>\n<div class=\"source-card\"><span class=\"source-badge\">ARCHIVAL<\/span><h3>2016 extended voltage range<\/h3><p>The 2016 catalogue includes 14\/25 and 18\/30 kV unshielded cables and a complete screened range through 18\/30 kV. These rows are useful for legacy assets, not proof of current availability.<\/p><\/div>\n<div class=\"source-card\"><span class=\"source-badge\">INFERENCE<\/span><h3>Force-rule reconciliation<\/h3><p>Where a 2016 table force equals 15 \u00d7 3S despite a 20 N\/mm\u00b2 text statement, the calculated 15 N\/mm\u00b2 basis is shown explicitly and treated as a document conflict.<\/p><\/div>\n<\/div>\n<div class=\"warn\"><strong>Contractual rule:<\/strong> the approved data sheet and production drawing for the exact order override every catalogue comparison in this article.<\/div>\n\n<h2>2. Application: heavy open-cast trailing duty<\/h2>\n<div class=\"svg-panel\"><svg viewBox=\"0 0 1700 800\">\n<rect width=\"1700\" height=\"800\" fill=\"#071821\"\/>\n<text x=\"55\" y=\"65\" fill=\"#ffad54\" font-family=\"Arial\" font-size=\"31\" font-weight=\"700\">Open-cast trailing duty: drag, abrasion, impact and repeated repositioning<\/text>\n<g font-family=\"Arial\">\n <rect x=\"70\" y=\"145\" width=\"520\" height=\"430\" rx=\"16\" fill=\"#0b202b\" stroke=\"#ffad54\" stroke-width=\"3\"\/>\n <path d=\"M140 390 L220 240 L390 240 L480 390 Z\" fill=\"#3a454a\" stroke=\"#8ea0a8\" stroke-width=\"8\"\/>\n <circle cx=\"245\" cy=\"445\" r=\"55\" fill=\"#172126\" stroke=\"#8ea0a8\" stroke-width=\"10\"\/><circle cx=\"410\" cy=\"445\" r=\"55\" fill=\"#172126\" stroke=\"#8ea0a8\" stroke-width=\"10\"\/>\n <path d=\"M470 450 C610 520 690 520 805 570\" fill=\"none\" stroke=\"#2d373c\" stroke-width=\"45\"\/><path d=\"M470 450 C610 520 690 520 805 570\" fill=\"none\" stroke=\"#ffad54\" stroke-width=\"7\"\/>\n <text x=\"115\" y=\"635\" fill=\"#ffad54\" font-size=\"24\" font-weight=\"700\">Excavators \/ shovels<\/text>\n <rect x=\"670\" y=\"145\" width=\"450\" height=\"430\" rx=\"16\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"3\"\/>\n <rect x=\"735\" y=\"255\" width=\"320\" height=\"150\" fill=\"#35474f\" stroke=\"#8ea0a8\" stroke-width=\"7\"\/><path d=\"M760 255 L890 180 L1035 255\" fill=\"none\" stroke=\"#8ea0a8\" stroke-width=\"13\"\/>\n <text x=\"715\" y=\"635\" fill=\"#62df9c\" font-size=\"24\" font-weight=\"700\">Stacker \/ reclaimer<\/text>\n <rect x=\"1200\" y=\"145\" width=\"430\" height=\"430\" rx=\"16\" fill=\"#0b202b\" stroke=\"#aa9bff\" stroke-width=\"3\"\/>\n <rect x=\"1270\" y=\"265\" width=\"290\" height=\"130\" fill=\"#35474f\" stroke=\"#8ea0a8\" stroke-width=\"7\"\/><circle cx=\"1340\" cy=\"440\" r=\"48\" fill=\"#172126\" stroke=\"#8ea0a8\" stroke-width=\"9\"\/><circle cx=\"1500\" cy=\"440\" r=\"48\" fill=\"#172126\" stroke=\"#8ea0a8\" stroke-width=\"9\"\/>\n <text x=\"1240\" y=\"635\" fill=\"#aa9bff\" font-size=\"24\" font-weight=\"700\">Mobile crusher \/ dumper<\/text>\n<\/g>\n<rect x=\"100\" y=\"690\" width=\"1500\" height=\"65\" rx=\"10\" fill=\"#102a36\" stroke=\"#315b6f\"\/><text x=\"130\" y=\"731\" fill=\"#dcebf0\" font-family=\"Arial\" font-size=\"19\">Trailing is the primary duty. Reeling\/festoon capability must be confirmed by the exact product and installation design.<\/text>\n<\/svg><\/div>\n<div class=\"good\"><strong>Primary use:<\/strong> power supply or connection of large mobile material-handling machines, including excavators, shovels, stackers, reclaimers, dumpers and mobile crushers in open-cast mines where abrasion and chafing are expected during trailing.<\/div>\n<div class=\"warn\"><strong>Do not generalize to high-speed reeling:<\/strong> SB-SAM is primarily a trailing cable. Any reel, festoon, multiple-plane or travel-speed claim must be verified against the exact installation and product document.<\/div>\n\n<h2>3. Detailed standard cross-section \u2014 (N)TSCGEWOEU<\/h2>\n<div class=\"image-box\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1260\">\n<defs>\n <radialGradient id=\"outer\" cx=\"35%\" cy=\"28%\"><stop offset=\"0\" stop-color=\"#3b4449\"\/><stop offset=\".62\" stop-color=\"#151c20\"\/><stop offset=\"1\" stop-color=\"#030608\"\/><\/radialGradient>\n <radialGradient id=\"inner\" cx=\"35%\" cy=\"30%\"><stop offset=\"0\" stop-color=\"#454e52\"\/><stop offset=\"1\" stop-color=\"#222a2e\"\/><\/radialGradient>\n <radialGradient id=\"epr\" cx=\"35%\" cy=\"30%\"><stop offset=\"0\" stop-color=\"#f3e4c7\"\/><stop offset=\"1\" stop-color=\"#c8ae7c\"\/><\/radialGradient>\n <pattern id=\"cu\" width=\"18\" height=\"18\" patternUnits=\"userSpaceOnUse\"><circle cx=\"5\" cy=\"5\" r=\"4\" fill=\"#d17a31\"\/><circle cx=\"14\" cy=\"5\" r=\"4\" fill=\"#e7a362\"\/><circle cx=\"9.5\" cy=\"14\" r=\"4\" fill=\"#bb5d1d\"\/><\/pattern>\n <pattern id=\"braid\" width=\"25\" height=\"25\" patternUnits=\"userSpaceOnUse\" patternTransform=\"rotate(38)\"><rect width=\"25\" height=\"7\" fill=\"#d7b879\"\/><rect y=\"12\" width=\"25\" height=\"7\" fill=\"#80612d\"\/><\/pattern>\n <marker id=\"arr\" markerWidth=\"10\" markerHeight=\"10\" refX=\"9\" refY=\"3\" orient=\"auto\"><path d=\"M0 0 L10 3 L0 6 Z\" fill=\"#dcebf0\"\/><\/marker>\n<\/defs>\n<rect width=\"1900\" height=\"1260\" fill=\"#06131b\"\/>\n<text x=\"65\" y=\"70\" font-family=\"Arial\" font-size=\"35\" font-weight=\"700\" fill=\"#ffad54\">PROTOLON (SB-SAM) (N)TSCGEWOEU \u2014 detailed trailing-cable cross-section<\/text>\n<text x=\"65\" y=\"110\" font-family=\"Arial\" font-size=\"18\" fill=\"#adc4ce\">Engineering reconstruction from official 2019\/2025 construction descriptions; relative thicknesses are not manufacturing dimensions.<\/text>\n<g transform=\"translate(610 665)\">\n <circle r=\"455\" fill=\"url(#outer)\" stroke=\"#68777e\" stroke-width=\"10\"\/>\n <circle r=\"408\" fill=\"url(#braid)\" stroke=\"#e8cc91\" stroke-width=\"8\"\/>\n <circle r=\"365\" fill=\"url(#inner)\" stroke=\"#59686e\" stroke-width=\"8\"\/>\n <circle r=\"325\" fill=\"#39464c\"\/>\n <g id=\"phase\">\n  <circle r=\"126\" fill=\"#11191d\" stroke=\"#05090b\" stroke-width=\"8\"\/>\n  <circle r=\"109\" fill=\"url(#epr)\" stroke=\"#efd29a\" stroke-width=\"8\"\/>\n  <circle r=\"70\" fill=\"#252e33\" stroke=\"#0b1013\" stroke-width=\"7\"\/>\n  <circle r=\"50\" fill=\"url(#cu)\" stroke=\"#f5b876\" stroke-width=\"5\"\/>\n <\/g>\n <use href=\"#phase\" transform=\"translate(0 -170)\"\/>\n <use href=\"#phase\" transform=\"translate(147 85)\"\/>\n <use href=\"#phase\" transform=\"translate(-147 85)\"\/>\n <g fill=\"#c9d938\" stroke=\"#f3ff84\" stroke-width=\"6\"><ellipse cx=\"-235\" cy=\"-40\" rx=\"58\" ry=\"43\"\/><ellipse cx=\"235\" cy=\"-40\" rx=\"58\" ry=\"43\"\/><\/g>\n <g fill=\"url(#cu)\" stroke=\"#f5b876\" stroke-width=\"4\"><ellipse cx=\"-235\" cy=\"-40\" rx=\"35\" ry=\"25\"\/><ellipse cx=\"235\" cy=\"-40\" rx=\"35\" ry=\"25\"\/><\/g>\n <g transform=\"translate(0 248)\"><circle r=\"52\" fill=\"#f0d33d\" stroke=\"#fff08b\" stroke-width=\"7\"\/><circle r=\"31\" fill=\"url(#cu)\" stroke=\"#f5b876\" stroke-width=\"4\"\/><\/g>\n<\/g>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <line x1=\"995\" y1=\"310\" x2=\"1375\" y2=\"180\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"1390\" y=\"175\" font-size=\"23\" font-weight=\"700\" fill=\"#d5e0e5\">1. Outer sheath<\/text><text x=\"1390\" y=\"207\" font-size=\"18\">PCP \/ chloroprene, special compound &gt;5GM5.<\/text>\n <line x1=\"980\" y1=\"405\" x2=\"1375\" y2=\"320\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"1390\" y=\"315\" font-size=\"23\" font-weight=\"700\" fill=\"#e8cc91\">2. Polyester reinforcement braid<\/text><text x=\"1390\" y=\"347\" font-size=\"18\">Torsion protection and sheath-movement restraint.<\/text>\n <line x1=\"940\" y1=\"490\" x2=\"1375\" y2=\"455\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"1390\" y=\"450\" font-size=\"23\" font-weight=\"700\">3. Inner sheath<\/text><text x=\"1390\" y=\"482\" font-size=\"18\">Special PCP\/chloroprene 5GM5 system.<\/text>\n <line x1=\"790\" y1=\"500\" x2=\"1375\" y2=\"585\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"1390\" y=\"580\" font-size=\"23\" font-weight=\"700\" fill=\"#f0d49c\">4. EPR insulation<\/text><text x=\"1390\" y=\"612\" font-size=\"18\">PROTOLON special compound 3GI3.<\/text>\n <line x1=\"660\" y1=\"510\" x2=\"1375\" y2=\"715\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"1390\" y=\"710\" font-size=\"23\" font-weight=\"700\" fill=\"#e7a362\">5. Phase conductor<\/text><text x=\"1390\" y=\"742\" font-size=\"18\">Current 2025 description: tinned, class 5.<\/text>\n <line x1=\"835\" y1=\"650\" x2=\"1375\" y2=\"845\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"1390\" y=\"840\" font-size=\"23\" font-weight=\"700\" fill=\"#e8f56f\">6. Split earth conductor<\/text><text x=\"1390\" y=\"872\" font-size=\"18\">Two parts in the interstices; tinned class FS in 2025.<\/text>\n <line x1=\"610\" y1=\"913\" x2=\"220\" y2=\"1040\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"65\" y=\"1090\" font-size=\"23\" font-weight=\"700\" fill=\"#f0d33d\">7. Pilot conductor<\/text><text x=\"65\" y=\"1122\" font-size=\"18\">EPR-insulated; yellow identification; 10 mm\u00b2 in listed matrices.<\/text>\n <line x1=\"545\" y1=\"540\" x2=\"215\" y2=\"330\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr)\"\/><text x=\"65\" y=\"270\" font-size=\"23\" font-weight=\"700\" fill=\"#a7bac2\">8. Electrical field control<\/text><text x=\"65\" y=\"302\" font-size=\"18\">Inner semi-conductive EPR and easy-strip outer semi-conductive NBR.<\/text>\n<\/g>\n<rect x=\"70\" y=\"1170\" width=\"1760\" height=\"55\" rx=\"10\" fill=\"#0b2430\" stroke=\"#315b6f\"\/><text x=\"95\" y=\"1205\" font-family=\"Arial\" font-size=\"18\" fill=\"#dcebf0\">No metallic concentric screen is shown in this standard (N)TSCGEWOEU reconstruction.<\/text>\n<\/svg><\/div>\n<div class=\"note\"><strong>Core architecture:<\/strong> three screened-by-semiconductive-layer phase cores, a two-part split earth conductor and one yellow pilot are laid with a tear-resistant reinforcement system inside bonded heavy-duty sheaths.<\/div>\n\n<h2>4. Detailed copper-core-screen cross-section \u2014 (N)TSCGECEWOEU<\/h2>\n<div class=\"image-box\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1260\">\n<defs>\n <radialGradient id=\"outer2\" cx=\"35%\" cy=\"28%\"><stop offset=\"0\" stop-color=\"#3b4449\"\/><stop offset=\".62\" stop-color=\"#151c20\"\/><stop offset=\"1\" stop-color=\"#030608\"\/><\/radialGradient>\n <radialGradient id=\"epr2\" cx=\"35%\" cy=\"30%\"><stop offset=\"0\" stop-color=\"#f3e4c7\"\/><stop offset=\"1\" stop-color=\"#c8ae7c\"\/><\/radialGradient>\n <pattern id=\"cu2\" width=\"18\" height=\"18\" patternUnits=\"userSpaceOnUse\"><circle cx=\"5\" cy=\"5\" r=\"4\" fill=\"#d17a31\"\/><circle cx=\"14\" cy=\"5\" r=\"4\" fill=\"#e7a362\"\/><circle cx=\"9.5\" cy=\"14\" r=\"4\" fill=\"#bb5d1d\"\/><\/pattern>\n <pattern id=\"screen\" width=\"22\" height=\"22\" patternUnits=\"userSpaceOnUse\" patternTransform=\"rotate(36)\"><rect width=\"22\" height=\"6\" fill=\"#df9d52\"\/><rect y=\"11\" width=\"22\" height=\"6\" fill=\"#8e4f20\"\/><\/pattern>\n <pattern id=\"reinforce\" width=\"25\" height=\"25\" patternUnits=\"userSpaceOnUse\" patternTransform=\"rotate(-36)\"><rect width=\"25\" height=\"7\" fill=\"#d7b879\"\/><rect y=\"12\" width=\"25\" height=\"7\" fill=\"#80612d\"\/><\/pattern>\n <marker id=\"arr2\" markerWidth=\"10\" markerHeight=\"10\" refX=\"9\" refY=\"3\" orient=\"auto\"><path d=\"M0 0 L10 3 L0 6 Z\" fill=\"#dcebf0\"\/><\/marker>\n<\/defs>\n<rect width=\"1900\" height=\"1260\" fill=\"#06131b\"\/>\n<text x=\"65\" y=\"70\" font-family=\"Arial\" font-size=\"35\" font-weight=\"700\" fill=\"#ffad54\">PROTOLON (SB-SAM) Screen (N)TSCGECEWOEU \u2014 copper core shield<\/text>\n<text x=\"65\" y=\"110\" font-family=\"Arial\" font-size=\"18\" fill=\"#adc4ce\">Archival 2016 screen architecture: a metallic concentric screen is applied over each main core.<\/text>\n<g transform=\"translate(610 665)\">\n <circle r=\"455\" fill=\"url(#outer2)\" stroke=\"#68777e\" stroke-width=\"10\"\/>\n <circle r=\"408\" fill=\"url(#reinforce)\" stroke=\"#e8cc91\" stroke-width=\"8\"\/>\n <circle r=\"365\" fill=\"#273136\" stroke=\"#59686e\" stroke-width=\"8\"\/>\n <circle r=\"325\" fill=\"#39464c\"\/>\n <g id=\"phase2\">\n  <circle r=\"139\" fill=\"url(#screen)\" stroke=\"#f1b36f\" stroke-width=\"8\"\/>\n  <circle r=\"119\" fill=\"#11191d\" stroke=\"#05090b\" stroke-width=\"7\"\/>\n  <circle r=\"102\" fill=\"url(#epr2)\" stroke=\"#efd29a\" stroke-width=\"8\"\/>\n  <circle r=\"66\" fill=\"#252e33\" stroke=\"#0b1013\" stroke-width=\"7\"\/>\n  <circle r=\"47\" fill=\"url(#cu2)\" stroke=\"#f5b876\" stroke-width=\"5\"\/>\n <\/g>\n <use href=\"#phase2\" transform=\"translate(0 -168)\"\/>\n <use href=\"#phase2\" transform=\"translate(145 84)\"\/>\n <use href=\"#phase2\" transform=\"translate(-145 84)\"\/>\n <g fill=\"#c9d938\" stroke=\"#f3ff84\" stroke-width=\"6\"><ellipse cx=\"-244\" cy=\"-39\" rx=\"53\" ry=\"40\"\/><ellipse cx=\"244\" cy=\"-39\" rx=\"53\" ry=\"40\"\/><\/g>\n <g fill=\"url(#cu2)\" stroke=\"#f5b876\" stroke-width=\"4\"><ellipse cx=\"-244\" cy=\"-39\" rx=\"31\" ry=\"23\"\/><ellipse cx=\"244\" cy=\"-39\" rx=\"31\" ry=\"23\"\/><\/g>\n <g transform=\"translate(0 252)\"><circle r=\"50\" fill=\"#f0d33d\" stroke=\"#fff08b\" stroke-width=\"7\"\/><circle r=\"29\" fill=\"url(#cu2)\" stroke=\"#f5b876\" stroke-width=\"4\"\/><\/g>\n<\/g>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <line x1=\"992\" y1=\"315\" x2=\"1370\" y2=\"185\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr2)\"\/><text x=\"1385\" y=\"180\" font-size=\"23\" font-weight=\"700\">1. Complete bonded sheath system<\/text><text x=\"1385\" y=\"212\" font-size=\"18\">Abrasion- and tear-resistant chloroprene\/PCP, 5GM5.<\/text>\n <line x1=\"980\" y1=\"410\" x2=\"1370\" y2=\"325\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr2)\"\/><text x=\"1385\" y=\"320\" font-size=\"23\" font-weight=\"700\" fill=\"#e8cc91\">2. Reinforcing tape \/ braid<\/text><text x=\"1385\" y=\"352\" font-size=\"18\">Prevents relative sheath movement under trailing stress.<\/text>\n <line x1=\"770\" y1=\"470\" x2=\"1370\" y2=\"470\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr2)\"\/><text x=\"1385\" y=\"465\" font-size=\"23\" font-weight=\"700\" fill=\"#f1b36f\">3. Metallic concentric core screen<\/text><text x=\"1385\" y=\"497\" font-size=\"18\">Applied over every main core in the archival screened design.<\/text>\n <line x1=\"725\" y1=\"520\" x2=\"1370\" y2=\"610\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr2)\"\/><text x=\"1385\" y=\"605\" font-size=\"23\" font-weight=\"700\" fill=\"#f0d49c\">4. EPR insulation and field control<\/text><text x=\"1385\" y=\"637\" font-size=\"18\">PROTOLON 3GI3 with inner and outer semi-conductive rubber.<\/text>\n <line x1=\"610\" y1=\"515\" x2=\"1370\" y2=\"750\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr2)\"\/><text x=\"1385\" y=\"745\" font-size=\"23\" font-weight=\"700\" fill=\"#e7a362\">5. Phase conductor<\/text><text x=\"1385\" y=\"777\" font-size=\"18\">Archival 2016 description: bare, finely stranded class 5.<\/text>\n <line x1=\"835\" y1=\"655\" x2=\"1370\" y2=\"890\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#arr2)\"\/><text x=\"1385\" y=\"885\" font-size=\"23\" font-weight=\"700\" fill=\"#e8f56f\">6. Split PE and yellow pilot<\/text><text x=\"1385\" y=\"917\" font-size=\"18\">Placed in the outer interstices around the three main cores.<\/text>\n<\/g>\n<rect x=\"70\" y=\"1100\" width=\"1760\" height=\"105\" rx=\"12\" fill=\"#0b2430\" stroke=\"#315b6f\"\/>\n<text x=\"95\" y=\"1140\" font-family=\"Arial\" font-size=\"20\" font-weight=\"700\" fill=\"#ff9b95\">Engineering caution<\/text>\n<text x=\"95\" y=\"1173\" font-family=\"Arial\" font-size=\"18\" fill=\"#dcebf0\">The core screen changes diameter, mass, torsional limit and termination design. It is not a cosmetic option.<\/text>\n<\/svg><\/div>\n<div class=\"warn\"><strong>Functional change:<\/strong> the metallic concentric screen is applied over each main core. It increases diameter and mass, reduces the permitted torsional angle in the archival product description, and changes jointing, earthing and fault-current design.<\/div>\n\n<h2>5. Layer-by-layer construction<\/h2>\n<div class=\"table-scroll\"><table><thead><tr><th>Layer \/ element<\/th><th>Current 2025 wording<\/th><th>2016\/2019 wording<\/th><th>Engineering function<\/th><\/tr><\/thead><tbody>\n<tr><td>Phase conductor<\/td><td>Tinned, finely stranded copper, class 5<\/td><td>Bare \/ untinned finely stranded copper, class 5<\/td><td>Flexible phase-current path; conductor finish is version-dependent.<\/td><\/tr>\n<tr><td>Earth conductor<\/td><td>Tinned, very finely stranded copper, class FS, with semiconductive rubber<\/td><td>Bare \/ untinned class FS; split into two parts<\/td><td>Protective earth continuity in two interstices.<\/td><\/tr>\n<tr><td>Inner field-control layer<\/td><td>Semiconductive EPR<\/td><td>Black semiconductive rubber compound<\/td><td>Controls electric stress at the conductor\/insulation interface.<\/td><\/tr>\n<tr><td>Insulation<\/td><td>PROTOLON EPR, special compound 3GI3<\/td><td>PROTOLON EPR, better than \/ minimum 3GI3<\/td><td>Medium-voltage dielectric and flexible thermal system.<\/td><\/tr>\n<tr><td>Outer field-control layer<\/td><td>Easy-strip semiconductive NBR<\/td><td>Cold-strippable black semiconductive rubber<\/td><td>Controls the insulation-screen interface and supports joint preparation.<\/td><\/tr>\n<tr><td>Core screen<\/td><td>Special metallic-screen design available<\/td><td>Concentric metallic screen over every main core in (N)TSCGECEWOEU<\/td><td>Core shielding, earth\/fault-current path and field containment.<\/td><\/tr>\n<tr><td>Pilot conductor<\/td><td>10 mm\u00b2 pilot in published matrices<\/td><td>EPR-insulated class FS copper, yellow<\/td><td>Ground-check, interlock or control function as defined by the system.<\/td><\/tr>\n<tr><td>Reinforcement<\/td><td>Tear-resistant reinforcing tape plus polyester braiding<\/td><td>Extremely tear-resistant tape preventing sheath movement<\/td><td>Stabilizes the assembly under dragging, bending and torsion.<\/td><\/tr>\n<tr><td>Inner sheath<\/td><td>PCP\/chloroprene heavy-duty system, compound 5GM5<\/td><td>Bonded inner part of complete sheath<\/td><td>Bedding, mechanical support and environmental barrier.<\/td><\/tr>\n<tr><td>Outer sheath<\/td><td>PCP\/chloroprene, special compound &gt;5GM5<\/td><td>5GM5, abrasion- and tear-resistant; bonded to inner sheath<\/td><td>Primary abrasion, chafing, ozone, UV and moisture protection.<\/td><\/tr>\n<\/tbody><\/table><\/div>\n\n<h2>6. Electrical, thermal and environmental ratings<\/h2>\n<div class=\"grid\">\n<div class=\"box\"><h3>Current rated voltages<\/h3><p>3.6\/6, 6\/10, 8.7\/15 and 12\/20 kV in the 2019\/2025 core matrix.<\/p><\/div>\n<div class=\"box\"><h3>Archival rated voltages<\/h3><p>14\/25 and 18\/30 kV appear in the 2016 unshielded and screened catalogues.<\/p><\/div>\n<div class=\"box\"><h3>AC test voltage<\/h3><p>11, 17, 24 and 29 kV for the current four voltage classes; archival 14\/25 and 18\/30 documents list 36 and 43 kV.<\/p><\/div>\n<div class=\"box\"><h3>Conductor temperature<\/h3><p>90 \u00b0C continuous; 250 \u00b0C short circuit.<\/p><\/div>\n<div class=\"box\"><h3>Ambient range<\/h3><p>Fixed: \u221240\u2026+80 \u00b0C. Fully flexible: \u221230\u2026+60 \u00b0C in the detailed 2019\/2025 product sheet.<\/p><\/div>\n<div class=\"box\"><h3>Resistance<\/h3><p>Flame performance to EN\/IEC 60332-1-2, oil resistance to IEC 60811-404, and resistance to ozone, UV and moisture.<\/p><\/div>\n<\/div>\n<div class=\"warn\"><strong>Water boundary:<\/strong> water resistance is referenced to HD 22.16 \/ EN 50525-2-21, but no numerical immersion depth is published for SB-SAM. Do not infer a depth rating.<\/div>\n\n<h2>7. Mechanical operating envelope<\/h2>\n<div class=\"svg-panel\"><svg viewBox=\"0 0 1700 900\">\n<rect width=\"1700\" height=\"900\" fill=\"#071821\"\/>\n<text x=\"55\" y=\"65\" fill=\"#ffad54\" font-family=\"Arial\" font-size=\"31\" font-weight=\"700\">Document evolution and parameter conflicts<\/text>\n<g font-family=\"Arial\">\n <rect x=\"65\" y=\"135\" width=\"470\" height=\"560\" rx=\"16\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"3\"\/>\n <text x=\"105\" y=\"195\" fill=\"#e8c37b\" font-size=\"25\" font-weight=\"700\">2016 catalogue<\/text>\n <text x=\"105\" y=\"255\" fill=\"#dcebf0\" font-size=\"19\">Unscreened and screened: 3.6\/6\u201318\/30 kV<\/text>\n <text x=\"105\" y=\"305\" fill=\"#dcebf0\" font-size=\"19\">Text: 20 N\/mm\u00b2<\/text>\n <text x=\"105\" y=\"350\" fill=\"#ff9b95\" font-size=\"19\">Tables: F values equal 15 \u00d7 3S<\/text>\n <text x=\"105\" y=\"400\" fill=\"#dcebf0\" font-size=\"19\">Unscreened torsion: \u00b1100\u00b0\/m<\/text>\n <text x=\"105\" y=\"445\" fill=\"#dcebf0\" font-size=\"19\">Screened torsion: \u00b125\u00b0\/m<\/text>\n <text x=\"105\" y=\"495\" fill=\"#dcebf0\" font-size=\"19\">Bare phase conductor stated<\/text>\n\n <rect x=\"615\" y=\"135\" width=\"470\" height=\"560\" rx=\"16\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"3\"\/>\n <text x=\"655\" y=\"195\" fill=\"#55dff7\" font-size=\"25\" font-weight=\"700\">2019 catalogue<\/text>\n <text x=\"655\" y=\"255\" fill=\"#dcebf0\" font-size=\"19\">Core matrix: 3.6\/6\u201312\/20 kV<\/text>\n <text x=\"655\" y=\"305\" fill=\"#dcebf0\" font-size=\"19\">F values equal 20 \u00d7 3S<\/text>\n <text x=\"655\" y=\"350\" fill=\"#dcebf0\" font-size=\"19\">Published Part\/MLFB on selected rows<\/text>\n <text x=\"655\" y=\"400\" fill=\"#dcebf0\" font-size=\"19\">Bare phase and PE conductors stated<\/text>\n <text x=\"655\" y=\"450\" fill=\"#dcebf0\" font-size=\"19\">Metallic screen available as special design<\/text>\n\n <rect x=\"1165\" y=\"135\" width=\"470\" height=\"560\" rx=\"16\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"3\"\/>\n <text x=\"1205\" y=\"195\" fill=\"#62df9c\" font-size=\"25\" font-weight=\"700\">2025 opencast brochure<\/text>\n <text x=\"1205\" y=\"255\" fill=\"#dcebf0\" font-size=\"19\">Core matrix repeats 36 current rows<\/text>\n <text x=\"1205\" y=\"305\" fill=\"#dcebf0\" font-size=\"19\">20 N\/mm\u00b2 static; \u00b1100\u00b0\/m<\/text>\n <text x=\"1205\" y=\"350\" fill=\"#dcebf0\" font-size=\"19\">6D fixed \/ 10D flexible<\/text>\n <text x=\"1205\" y=\"400\" fill=\"#dcebf0\" font-size=\"19\">Tinned class 5 phase conductor stated<\/text>\n <text x=\"1205\" y=\"450\" fill=\"#dcebf0\" font-size=\"19\">Tinned class FS split PE stated<\/text>\n <text x=\"1205\" y=\"500\" fill=\"#dcebf0\" font-size=\"19\">Flexible temperature: \u221230\u2026+60 \u00b0C<\/text>\n<\/g>\n<rect x=\"130\" y=\"755\" width=\"1440\" height=\"90\" rx=\"12\" fill=\"#102a36\" stroke=\"#315b6f\"\/>\n<text x=\"165\" y=\"795\" fill=\"#ff9b95\" font-family=\"Arial\" font-size=\"20\" font-weight=\"700\">Rule:<\/text><text x=\"235\" y=\"795\" fill=\"#dcebf0\" font-family=\"Arial\" font-size=\"19\">do not merge conductor finish, voltage range or tensile values across document generations.<\/text>\n<text x=\"165\" y=\"825\" fill=\"#dcebf0\" font-family=\"Arial\" font-size=\"18\">The exact contractual data sheet and production drawing take precedence.<\/text>\n<\/svg><\/div>\n<div class=\"grid\">\n<div class=\"box\"><h3>Current unshielded<\/h3><p>20 N\/mm\u00b2 static tensile rule, \u00b1100\u00b0\/m torsion, 6D fixed and 10D flexible bending rule.<\/p><\/div>\n<div class=\"box\"><h3>Archival screened<\/h3><p>\u00b125\u00b0\/m torsion. The 2016 table force values equal 15 N\/mm\u00b2 on the three phase conductors even though its text says 20 N\/mm\u00b2.<\/p><\/div>\n<div class=\"box\"><h3>S-bends<\/h3><p>Avoid tight reverse bends. A project-specific path analysis is required because the current product sheet provides 6D\/10D rules but no universal operating S-bend distance.<\/p><\/div>\n<div class=\"box\"><h3>Trailing pull<\/h3><p>Calculate steady pull, startup peaks, ground friction, slope, cable self-weight and localized snag loads separately.<\/p><\/div>\n<\/div>\n\n<h2>8. Current core matrix \u2014 36 rows<\/h2>\n<p>The following table uses the current 2019\/2025 dimensions and electrical data. Part and MLFB identifiers are included only where the 2019 catalogue publishes them.<\/p>\n<details class=\"dataset\"><summary>Current core matrix \u00b7 3.6\/6 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>Construction<\/th><th>Part number<\/th><th>MLFB<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>Fmax<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><th>F\/(3S)<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>20203078<\/td><td>5DK3246<\/td><td>6.5<\/td><td>35.5<\/td><td>42.5<\/td><td>2,670<\/td><td>1,500<\/td><td>0.78<\/td><td>0.35<\/td><td>0.32<\/td><td>131<\/td><td>3.58<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>20181804<\/td><td>5DK3249<\/td><td>7.6<\/td><td>41.9<\/td><td>44.9<\/td><td>3,020<\/td><td>2,100<\/td><td>0.554<\/td><td>0.39<\/td><td>0.31<\/td><td>162<\/td><td>5.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>20183832<\/td><td>5DK3***<\/td><td>9.1<\/td><td>42.8<\/td><td>45.8<\/td><td>3,510<\/td><td>3,000<\/td><td>0.386<\/td><td>0.45<\/td><td>0.29<\/td><td>202<\/td><td>7.15<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>10.9<\/td><td>46.5<\/td><td>49.5<\/td><td>4,300<\/td><td>4,200<\/td><td>0.272<\/td><td>0.52<\/td><td>0.28<\/td><td>250<\/td><td>10.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>12.7<\/td><td>52.9<\/td><td>56.9<\/td><td>5,600<\/td><td>5,700<\/td><td>0.206<\/td><td>0.58<\/td><td>0.27<\/td><td>301<\/td><td>13.59<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>14.4<\/td><td>56.5<\/td><td>60.5<\/td><td>6,750<\/td><td>7,200<\/td><td>0.161<\/td><td>0.65<\/td><td>0.26<\/td><td>352<\/td><td>17.16<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>16.2<\/td><td>63<\/td><td>67<\/td><td>8,100<\/td><td>9,000<\/td><td>0.129<\/td><td>0.71<\/td><td>0.25<\/td><td>404<\/td><td>21.45<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>17.8<\/td><td>66.4<\/td><td>70.4<\/td><td>9,400<\/td><td>11,100<\/td><td>0.106<\/td><td>0.77<\/td><td>0.25<\/td><td>461<\/td><td>26.46<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>20.6<\/td><td>72.3<\/td><td>76.3<\/td><td>11,700<\/td><td>14,400<\/td><td>0.08<\/td><td>0.88<\/td><td>0.24<\/td><td>540<\/td><td>34.32<\/td><td>20 N\/mm\u00b2<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Current core matrix \u00b7 6\/10 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>Construction<\/th><th>Part number<\/th><th>MLFB<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>Fmax<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><th>F\/(3S)<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>6.5<\/td><td>40.8<\/td><td>43.8<\/td><td>2,700<\/td><td>1,500<\/td><td>0.78<\/td><td>0.3<\/td><td>0.34<\/td><td>131<\/td><td>3.58<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>20036708<\/td><td>5DK4548<\/td><td>7.6<\/td><td>41.1<\/td><td>44.1<\/td><td>3,030<\/td><td>2,100<\/td><td>0.554<\/td><td>0.33<\/td><td>0.32<\/td><td>162<\/td><td>5.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>9.1<\/td><td>45.3<\/td><td>48.3<\/td><td>3,600<\/td><td>3,000<\/td><td>0.386<\/td><td>0.38<\/td><td>0.31<\/td><td>202<\/td><td>7.15<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>20079290<\/td><td>5DK4459<\/td><td>10.9<\/td><td>47.7<\/td><td>50.7<\/td><td>4,540<\/td><td>4,200<\/td><td>0.272<\/td><td>0.43<\/td><td>0.29<\/td><td>250<\/td><td>10.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>12.7<\/td><td>54.2<\/td><td>58.2<\/td><td>5,700<\/td><td>5,700<\/td><td>0.206<\/td><td>0.48<\/td><td>0.28<\/td><td>301<\/td><td>13.59<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>20006948<\/td><td>5DK4243<\/td><td>14.4<\/td><td>57.7<\/td><td>61.7<\/td><td>7,130<\/td><td>7,200<\/td><td>0.161<\/td><td>0.54<\/td><td>0.27<\/td><td>352<\/td><td>17.16<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>16.2<\/td><td>64.2<\/td><td>68.2<\/td><td>8,300<\/td><td>9,000<\/td><td>0.129<\/td><td>0.59<\/td><td>0.26<\/td><td>404<\/td><td>21.45<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>17.8<\/td><td>67.6<\/td><td>71.6<\/td><td>9,600<\/td><td>11,100<\/td><td>0.106<\/td><td>0.64<\/td><td>0.26<\/td><td>461<\/td><td>26.46<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20008103<\/td><td>5DK4246<\/td><td>20.6<\/td><td>72.3<\/td><td>76.3<\/td><td>12,060<\/td><td>14,400<\/td><td>0.08<\/td><td>0.72<\/td><td>0.25<\/td><td>540<\/td><td>34.32<\/td><td>20 N\/mm\u00b2<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Current core matrix \u00b7 8.7\/15 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>Construction<\/th><th>Part number<\/th><th>MLFB<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>Fmax<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><th>F\/(3S)<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>6.5<\/td><td>41.9<\/td><td>44.9<\/td><td>2,600<\/td><td>1,500<\/td><td>0.78<\/td><td>0.22<\/td><td>0.37<\/td><td>139<\/td><td>3.58<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>20069641<\/td><td>5DK5412<\/td><td>7.6<\/td><td>45.5<\/td><td>48.5<\/td><td>3,440<\/td><td>2,100<\/td><td>0.554<\/td><td>0.25<\/td><td>0.35<\/td><td>172<\/td><td>5.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>9.1<\/td><td>47.4<\/td><td>50.4<\/td><td>3,700<\/td><td>3,000<\/td><td>0.386<\/td><td>0.28<\/td><td>0.33<\/td><td>215<\/td><td>7.15<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>20069640<\/td><td>5DK5414<\/td><td>10.9<\/td><td>53.7<\/td><td>57.7<\/td><td>5,380<\/td><td>4,200<\/td><td>0.272<\/td><td>0.32<\/td><td>0.31<\/td><td>265<\/td><td>10.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>12.7<\/td><td>57.6<\/td><td>61.6<\/td><td>6,150<\/td><td>5,700<\/td><td>0.206<\/td><td>0.35<\/td><td>0.3<\/td><td>319<\/td><td>13.59<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>20088941<\/td><td>5DK5416<\/td><td>14.4<\/td><td>63<\/td><td>67<\/td><td>7,840<\/td><td>7,200<\/td><td>0.161<\/td><td>0.39<\/td><td>0.29<\/td><td>371<\/td><td>17.16<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>20088942<\/td><td>5DK5417<\/td><td>16.2<\/td><td>66.8<\/td><td>70.8<\/td><td>8,990<\/td><td>9,000<\/td><td>0.129<\/td><td>0.43<\/td><td>0.28<\/td><td>428<\/td><td>21.45<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>17.8<\/td><td>71<\/td><td>75<\/td><td>10,100<\/td><td>11,100<\/td><td>0.106<\/td><td>0.46<\/td><td>0.27<\/td><td>488<\/td><td>26.46<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20216531<\/td><td>5DK5***<\/td><td>20.6<\/td><td>78.3<\/td><td>83.3<\/td><td>12,800<\/td><td>14,400<\/td><td>0.08<\/td><td>0.52<\/td><td>0.27<\/td><td>574<\/td><td>34.32<\/td><td>20 N\/mm\u00b2<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Current core matrix \u00b7 12\/20 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>Construction<\/th><th>Part number<\/th><th>MLFB<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>Fmax<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><th>F\/(3S)<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>6.5<\/td><td>44.9<\/td><td>47.9<\/td><td>3,000<\/td><td>1,500<\/td><td>0.78<\/td><td>0.22<\/td><td>0.37<\/td><td>139<\/td><td>3.58<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>20203799<\/td><td>5DK6***<\/td><td>7.6<\/td><td>47.2<\/td><td>50.2<\/td><td>3,500<\/td><td>2,100<\/td><td>0.554<\/td><td>0.24<\/td><td>0.35<\/td><td>172<\/td><td>5.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>9.1<\/td><td>51.7<\/td><td>55.7<\/td><td>4,350<\/td><td>3,000<\/td><td>0.386<\/td><td>0.27<\/td><td>0.33<\/td><td>215<\/td><td>7.15<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>10.9<\/td><td>55.5<\/td><td>59.5<\/td><td>5,400<\/td><td>4,200<\/td><td>0.272<\/td><td>0.31<\/td><td>0.32<\/td><td>265<\/td><td>10.01<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>12.7<\/td><td>60.5<\/td><td>64.5<\/td><td>6,500<\/td><td>5,700<\/td><td>0.206<\/td><td>0.35<\/td><td>0.3<\/td><td>319<\/td><td>13.59<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>14.4<\/td><td>65.9<\/td><td>69.9<\/td><td>8,000<\/td><td>7,200<\/td><td>0.161<\/td><td>0.38<\/td><td>0.29<\/td><td>371<\/td><td>17.16<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>16.2<\/td><td>70.6<\/td><td>74.6<\/td><td>9,200<\/td><td>9,000<\/td><td>0.129<\/td><td>0.42<\/td><td>0.28<\/td><td>428<\/td><td>21.45<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>17.8<\/td><td>75.8<\/td><td>79.8<\/td><td>10,850<\/td><td>11,100<\/td><td>0.106<\/td><td>0.45<\/td><td>0.28<\/td><td>488<\/td><td>26.46<\/td><td>20 N\/mm\u00b2<\/td><\/tr><tr><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td><em>not published<\/em><\/td><td>\u2014<\/td><td>20.6<\/td><td>81.2<\/td><td>86.2<\/td><td>13,300<\/td><td>14,400<\/td><td>0.08<\/td><td>0.51<\/td><td>0.27<\/td><td>574<\/td><td>34.32<\/td><td>20 N\/mm\u00b2<\/td><\/tr><\/tbody><\/table><\/div><\/details>\n\n<h2>9. Archival unshielded high-voltage extension \u2014 18 rows<\/h2>\n<p>These 14\/25 and 18\/30 kV rows were published in 2016. They are retained for legacy-asset engineering and dimensional comparison; current manufacture must be confirmed.<\/p>\n<details class=\"dataset\"><summary>Archival unshielded high-voltage extension (2016) \u00b7 18 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>14\/25<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>48.2<\/td><td>52.2<\/td><td>3,500<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.19<\/td><td>0.39<\/td><td>139<\/td><td>3.58<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>52.3<\/td><td>56.3<\/td><td>4,100<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.21<\/td><td>0.37<\/td><td>172<\/td><td>5.01<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>55.5<\/td><td>59.5<\/td><td>4,800<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.23<\/td><td>0.35<\/td><td>215<\/td><td>7.15<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>59.3<\/td><td>63.3<\/td><td>5,800<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.26<\/td><td>0.33<\/td><td>265<\/td><td>10.01<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>66.2<\/td><td>70.2<\/td><td>7,300<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.29<\/td><td>0.32<\/td><td>319<\/td><td>13.6<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>69.8<\/td><td>73.8<\/td><td>8,600<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.32<\/td><td>0.31<\/td><td>371<\/td><td>17.16<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>76.2<\/td><td>80.2<\/td><td>10,100<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.35<\/td><td>0.3<\/td><td>428<\/td><td>21.45<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>79.1<\/td><td>84.1<\/td><td>11,600<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.38<\/td><td>0.29<\/td><td>488<\/td><td>26.46<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>86.8<\/td><td>91.8<\/td><td>14,200<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.42<\/td><td>0.28<\/td><td>574<\/td><td>34.32<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>53.3<\/td><td>57.3<\/td><td>4,000<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.17<\/td><td>0.41<\/td><td>139<\/td><td>3.58<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>55.7<\/td><td>59.7<\/td><td>4,600<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.18<\/td><td>0.39<\/td><td>172<\/td><td>5.01<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>58.9<\/td><td>62.9<\/td><td>5,300<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.2<\/td><td>0.37<\/td><td>215<\/td><td>7.15<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>64.5<\/td><td>68.5<\/td><td>6,200<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.23<\/td><td>0.35<\/td><td>265<\/td><td>10.01<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>69.5<\/td><td>73.5<\/td><td>8,000<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.25<\/td><td>0.33<\/td><td>319<\/td><td>13.6<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>74.9<\/td><td>78.9<\/td><td>9,200<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.28<\/td><td>0.32<\/td><td>371<\/td><td>17.16<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>79.1<\/td><td>84.1<\/td><td>10,900<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.3<\/td><td>0.31<\/td><td>428<\/td><td>21.45<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>82.5<\/td><td>87.5<\/td><td>12,200<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.32<\/td><td>0.3<\/td><td>488<\/td><td>26.46<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>90.2<\/td><td>95.2<\/td><td>15,000<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.36<\/td><td>0.29<\/td><td>574<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details>\n\n<h2>10. Archival copper-core-screen matrix \u2014 54 rows<\/h2>\n<p>The screened matrix covers six voltage classes and nine conductor sizes. The published table force values are shown without silent correction.<\/p>\n<details class=\"dataset\"><summary>Archival copper-core-screen matrix \u00b7 3.6\/6 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>3.6\/6<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>41.6<\/td><td>44.6<\/td><td>2,860<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.37<\/td><td>0.35<\/td><td>131<\/td><td>3.58<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>44<\/td><td>47<\/td><td>3,290<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.43<\/td><td>0.32<\/td><td>162<\/td><td>5.01<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>47.1<\/td><td>50.1<\/td><td>3,950<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.49<\/td><td>0.28<\/td><td>202<\/td><td>7.15<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>52.3<\/td><td>56.3<\/td><td>5,100<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.55<\/td><td>0.27<\/td><td>250<\/td><td>10.01<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>56.1<\/td><td>60.1<\/td><td>6,130<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.63<\/td><td>0.26<\/td><td>301<\/td><td>13.6<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>59.7<\/td><td>63.7<\/td><td>7,360<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.7<\/td><td>0.25<\/td><td>352<\/td><td>17.16<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>66.3<\/td><td>70.3<\/td><td>8,770<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.76<\/td><td>0.25<\/td><td>404<\/td><td>21.45<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>69.7<\/td><td>73.7<\/td><td>10,140<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.82<\/td><td>0.24<\/td><td>462<\/td><td>26.46<\/td><\/tr><tr><td>3.6\/6<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>77.4<\/td><td>81.4<\/td><td>12,790<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.93<\/td><td>0.24<\/td><td>540<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Archival copper-core-screen matrix \u00b7 6\/10 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>6\/10<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>42.6<\/td><td>45.6<\/td><td>2,970<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.33<\/td><td>0.35<\/td><td>131<\/td><td>3.58<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>45.5<\/td><td>48.5<\/td><td>3,460<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.38<\/td><td>0.32<\/td><td>162<\/td><td>5.01<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>48.4<\/td><td>51.4<\/td><td>4,080<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.43<\/td><td>0.28<\/td><td>202<\/td><td>7.15<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>53.5<\/td><td>57.5<\/td><td>5,240<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.49<\/td><td>0.27<\/td><td>250<\/td><td>10.01<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>57.4<\/td><td>61.4<\/td><td>6,320<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.56<\/td><td>0.26<\/td><td>301<\/td><td>13.6<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>62.8<\/td><td>66.8<\/td><td>7,770<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.62<\/td><td>0.25<\/td><td>352<\/td><td>17.16<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>67.6<\/td><td>71.6<\/td><td>8,990<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.67<\/td><td>0.25<\/td><td>404<\/td><td>21.45<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>71<\/td><td>75<\/td><td>10,330<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.73<\/td><td>0.24<\/td><td>462<\/td><td>26.46<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>78.7<\/td><td>82.7<\/td><td>12,990<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.82<\/td><td>0.24<\/td><td>540<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Archival copper-core-screen matrix \u00b7 8.7\/15 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>8.7\/15<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>46.3<\/td><td>49.3<\/td><td>3,330<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.26<\/td><td>0.36<\/td><td>131<\/td><td>3.58<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>48.1<\/td><td>52.1<\/td><td>3,770<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.31<\/td><td>0.33<\/td><td>162<\/td><td>5.01<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>53.1<\/td><td>57.1<\/td><td>4,690<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.35<\/td><td>0.31<\/td><td>202<\/td><td>7.15<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>57<\/td><td>61<\/td><td>5,640<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.38<\/td><td>0.3<\/td><td>250<\/td><td>10.01<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>60.8<\/td><td>64.8<\/td><td>6,750<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.43<\/td><td>0.28<\/td><td>301<\/td><td>13.6<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>66.1<\/td><td>70.1<\/td><td>8,220<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.48<\/td><td>0.27<\/td><td>352<\/td><td>17.16<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>71<\/td><td>75<\/td><td>9,490<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.53<\/td><td>0.27<\/td><td>404<\/td><td>21.45<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>76.1<\/td><td>80.1<\/td><td>11,180<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.57<\/td><td>0.26<\/td><td>462<\/td><td>26.46<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>82.1<\/td><td>86.1<\/td><td>13,560<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.64<\/td><td>0.25<\/td><td>540<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Archival copper-core-screen matrix \u00b7 12\/20 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>12\/20<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>48.8<\/td><td>52.8<\/td><td>3,620<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.23<\/td><td>0.36<\/td><td>131<\/td><td>3.58<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>52.9<\/td><td>56.9<\/td><td>4,350<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.26<\/td><td>0.34<\/td><td>162<\/td><td>5.01<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>56.1<\/td><td>60.1<\/td><td>5,020<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.3<\/td><td>0.32<\/td><td>202<\/td><td>7.15<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>59.9<\/td><td>63.9<\/td><td>6,040<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.33<\/td><td>0.31<\/td><td>250<\/td><td>10.01<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>65.5<\/td><td>69.5<\/td><td>7,390<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.37<\/td><td>0.3<\/td><td>301<\/td><td>13.6<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>69<\/td><td>73<\/td><td>8,680<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.41<\/td><td>0.29<\/td><td>352<\/td><td>17.16<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>75.7<\/td><td>79.7<\/td><td>10,280<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.44<\/td><td>0.28<\/td><td>404<\/td><td>21.45<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>79.2<\/td><td>83.2<\/td><td>11,670<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.48<\/td><td>0.27<\/td><td>462<\/td><td>26.46<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>86.4<\/td><td>91.4<\/td><td>14,560<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.54<\/td><td>0.26<\/td><td>540<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Archival copper-core-screen matrix \u00b7 14\/25 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>14\/25<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>54.4<\/td><td>58.4<\/td><td>4,290<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.2<\/td><td>0.38<\/td><td>131<\/td><td>3.58<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>56.8<\/td><td>60.8<\/td><td>4,780<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.22<\/td><td>0.36<\/td><td>162<\/td><td>5.01<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>59.9<\/td><td>63.9<\/td><td>5,540<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.26<\/td><td>0.34<\/td><td>202<\/td><td>7.15<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>65.5<\/td><td>69.5<\/td><td>6,800<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.28<\/td><td>0.32<\/td><td>250<\/td><td>10.01<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>69.3<\/td><td>73.3<\/td><td>7,980<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.31<\/td><td>0.31<\/td><td>301<\/td><td>13.6<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>74.7<\/td><td>78.7<\/td><td>9,540<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.35<\/td><td>0.3<\/td><td>352<\/td><td>17.16<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>79.6<\/td><td>83.6<\/td><td>10,900<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.37<\/td><td>0.29<\/td><td>404<\/td><td>21.45<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>83<\/td><td>87<\/td><td>12,450<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.4<\/td><td>0.28<\/td><td>462<\/td><td>26.46<\/td><\/tr><tr><td>14\/25<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>90.2<\/td><td>95.2<\/td><td>15,250<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.45<\/td><td>0.27<\/td><td>540<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details><details class=\"dataset\"><summary>Archival copper-core-screen matrix \u00b7 18\/30 kV \u00b7 9 rows<\/summary><div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>Conductor \u00d8<\/th><th>Dmin<\/th><th>Dmax<\/th><th>kg\/km<\/th><th>F table<\/th><th>F\/(3S)<\/th><th>R20<\/th><th>C<\/th><th>L<\/th><th>A<\/th><th>Isc 1 s<\/th><\/tr><\/thead><tbody><tr><td>18\/30<\/td><td>3&#215;25+2&#215;25\/2+1x10ST<\/td><td>6.5<\/td><td>56.5<\/td><td>60.5<\/td><td>4,360<\/td><td>1,125<\/td><td>15 N\/mm\u00b2<\/td><td>0.78<\/td><td>0.17<\/td><td>0.41<\/td><td>131<\/td><td>3.58<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;35+2&#215;25\/2+1x10ST<\/td><td>7.6<\/td><td>58.8<\/td><td>62.8<\/td><td>5,090<\/td><td>1,575<\/td><td>15 N\/mm\u00b2<\/td><td>0.554<\/td><td>0.18<\/td><td>0.39<\/td><td>162<\/td><td>5.01<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;50+2&#215;25\/2+1x10ST<\/td><td>9.1<\/td><td>63.8<\/td><td>67.8<\/td><td>5,920<\/td><td>2,250<\/td><td>15 N\/mm\u00b2<\/td><td>0.386<\/td><td>0.2<\/td><td>0.37<\/td><td>202<\/td><td>7.15<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;70+2&#215;35\/2+1x10ST<\/td><td>10.9<\/td><td>67.6<\/td><td>71.6<\/td><td>6,950<\/td><td>3,150<\/td><td>15 N\/mm\u00b2<\/td><td>0.272<\/td><td>0.23<\/td><td>0.35<\/td><td>250<\/td><td>10.01<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>12.7<\/td><td>74.5<\/td><td>78.5<\/td><td>8,880<\/td><td>4,275<\/td><td>15 N\/mm\u00b2<\/td><td>0.206<\/td><td>0.25<\/td><td>0.33<\/td><td>301<\/td><td>13.6<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;120+2&#215;70\/2+1x10ST<\/td><td>14.4<\/td><td>78.1<\/td><td>82.1<\/td><td>10,210<\/td><td>5,400<\/td><td>15 N\/mm\u00b2<\/td><td>0.161<\/td><td>0.28<\/td><td>0.32<\/td><td>352<\/td><td>17.16<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>16.2<\/td><td>82.7<\/td><td>87.7<\/td><td>12,040<\/td><td>6,750<\/td><td>15 N\/mm\u00b2<\/td><td>0.129<\/td><td>0.3<\/td><td>0.31<\/td><td>404<\/td><td>21.45<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>17.8<\/td><td>87.9<\/td><td>92.9<\/td><td>13,470<\/td><td>8,352<\/td><td>15 N\/mm\u00b2<\/td><td>0.106<\/td><td>0.32<\/td><td>0.3<\/td><td>462<\/td><td>26.46<\/td><\/tr><tr><td>18\/30<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>20.6<\/td><td>93.9<\/td><td>98.9<\/td><td>16,400<\/td><td>10,800<\/td><td>15 N\/mm\u00b2<\/td><td>0.08<\/td><td>0.36<\/td><td>0.29<\/td><td>540<\/td><td>34.32<\/td><\/tr><\/tbody><\/table><\/div><\/details>\n\n<h2>11. Critical document conflicts and engineering interpretation<\/h2>\n<div class=\"warn\"><strong>Tensile-force conflict:<\/strong> the 2016 product text states 20 N\/mm\u00b2, but every table force equals 15 \u00d7 3 \u00d7 phase section. A regional legacy document also states 15 N\/mm\u00b2. The 2019\/2025 current table forces equal 20 \u00d7 3 \u00d7 phase section.<\/div>\n<div class=\"warn\"><strong>Conductor finish changed:<\/strong> 2016\/2019 descriptions state bare or untinned copper, while the 2025 brochure states tinned phase and PE conductors. Do not specify conductor finish from the family name alone.<\/div>\n<div class=\"warn\"><strong>Voltage range changed:<\/strong> the 2016 catalogue includes 14\/25 and 18\/30 kV; the 2019\/2025 core matrix stops at 12\/20 kV. The archival rows do not establish current availability.<\/div>\n<div class=\"warn\"><strong>Electrical-parameter header omission:<\/strong> the 2025 electrical summary line lists 3.6\/6, 6\/10 and 12\/20 kV, while the adjacent current matrix also includes 8.7\/15 kV. The 8.7\/15 kV test and system values remain supported by the 2019 catalogue and table.<\/div>\n<div class=\"note\"><strong>Reasoned inference:<\/strong> the most likely explanation for the archival tensile mismatch is that the tables retained a 15 N\/mm\u00b2 phase-conductor rule while the descriptive text was updated to 20 N\/mm\u00b2. This is an inference, not a corrected source value.<\/div>\n\n<h2>12. Representative engineering calculations<\/h2>\n<div class=\"formula\">Three-phase apparent power: S = \u221a3 \u00d7 Uline \u00d7 I\nActive power example: P = S \u00d7 0.90\nResistance-only voltage drop: \u0394U_R = \u221a3 \u00d7 I \u00d7 R20 \u00d7 0.1 km\n100 m cable weight force: W = mass(kg\/km) \u00d7 0.1 \u00d7 9.81\nFlexible minimum loop diameter (simple geometric check): approximately 2 \u00d7 10D\n\nNot calculated without project data:\n&#8211; complex voltage drop and reactive power under actual load, despite published C and L;\n&#8211; reflected-wave overvoltage, because source impedance, switching waveform and termination are unknown;\n&#8211; pilot-loop protection settings and core-screen fault current;\n&#8211; dragging force, because friction, slope and snag factors are installation-specific.<\/div>\n<div class=\"table-scroll\"><table><thead><tr><th>U0\/U<\/th><th>Construction<\/th><th>A<\/th><th>MVA<\/th><th>MW @0.9<\/th><th>\u0394U_R\/100 m<\/th><th>100 m weight<\/th><th>Fmax<\/th><th>2\u00d710Dmax<\/th><\/tr><\/thead><tbody><tr><td>3.6\/6<\/td><td>3&#215;95+2&#215;50\/2+1x10ST<\/td><td>301<\/td><td>3.13<\/td><td>2.82<\/td><td>0.179%<\/td><td>5.49 kN<\/td><td>5,700 N<\/td><td>569 mm<\/td><\/tr><tr><td>6\/10<\/td><td>3&#215;150+2&#215;70\/2+1x10ST<\/td><td>404<\/td><td>7<\/td><td>6.3<\/td><td>0.09%<\/td><td>8.14 kN<\/td><td>9,000 N<\/td><td>682 mm<\/td><\/tr><tr><td>8.7\/15<\/td><td>3&#215;240+2&#215;120\/2+1x10ST<\/td><td>574<\/td><td>14.91<\/td><td>13.42<\/td><td>0.053%<\/td><td>12.56 kN<\/td><td>14,400 N<\/td><td>833 mm<\/td><\/tr><tr><td>12\/20<\/td><td>3&#215;185+2&#215;95\/2+1x10ST<\/td><td>488<\/td><td>16.9<\/td><td>15.21<\/td><td>0.045%<\/td><td>10.64 kN<\/td><td>11,100 N<\/td><td>798 mm<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>13. Selection workflow<\/h2>\n<div class=\"svg-panel\"><svg viewBox=\"0 0 1700 820\">\n<rect width=\"1700\" height=\"820\" fill=\"#071821\"\/>\n<text x=\"55\" y=\"65\" fill=\"#ffad54\" font-family=\"Arial\" font-size=\"31\" font-weight=\"700\">PROTOLON (SB-SAM) engineering selection workflow<\/text>\n<g font-family=\"Arial\" text-anchor=\"middle\">\n <rect x=\"65\" y=\"135\" width=\"290\" height=\"130\" rx=\"14\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"3\"\/><text x=\"210\" y=\"188\" fill=\"#55dff7\" font-size=\"22\" font-weight=\"700\">1. Voltage<\/text><text x=\"210\" y=\"227\" fill=\"#dcebf0\" font-size=\"18\">current or archival class<\/text>\n <rect x=\"405\" y=\"135\" width=\"290\" height=\"130\" rx=\"14\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"3\"\/><text x=\"550\" y=\"188\" fill=\"#62df9c\" font-size=\"22\" font-weight=\"700\">2. Core screen<\/text><text x=\"550\" y=\"227\" fill=\"#dcebf0\" font-size=\"18\">none \/ concentric Cu<\/text>\n <rect x=\"745\" y=\"135\" width=\"290\" height=\"130\" rx=\"14\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"3\"\/><text x=\"890\" y=\"188\" fill=\"#e8c37b\" font-size=\"22\" font-weight=\"700\">3. Mechanics<\/text><text x=\"890\" y=\"227\" fill=\"#dcebf0\" font-size=\"18\">drag \u00b7 F \u00b7 R \u00b7 torsion<\/text>\n <rect x=\"1085\" y=\"135\" width=\"290\" height=\"130\" rx=\"14\" fill=\"#0b202b\" stroke=\"#aa9bff\" stroke-width=\"3\"\/><text x=\"1230\" y=\"188\" fill=\"#aa9bff\" font-size=\"22\" font-weight=\"700\">4. Interface<\/text><text x=\"1230\" y=\"227\" fill=\"#dcebf0\" font-size=\"18\">pilot \u00b7 PE \u00b7 termination<\/text>\n<\/g>\n<rect x=\"180\" y=\"365\" width=\"1340\" height=\"300\" rx=\"18\" fill=\"#0b202b\" stroke=\"#315b6f\" stroke-width=\"3\"\/>\n<g font-family=\"Arial\" font-size=\"20\" fill=\"#dcebf0\">\n <text x=\"230\" y=\"425\">\u2022 Select the exact U0\/U and verify maximum system voltage and AC test voltage.<\/text>\n <text x=\"230\" y=\"478\">\u2022 Decide whether each phase requires a metallic concentric screen and redesign the termination accordingly.<\/text>\n <text x=\"230\" y=\"531\">\u2022 Calculate trailing pull, dynamic peaks, bending radius, abrasion path and permitted torsion.<\/text>\n <text x=\"230\" y=\"584\">\u2022 Confirm the two-part PE, 10 mm\u00b2 pilot, pilot voltage\/function and sealed termination dimensions.<\/text>\n <text x=\"230\" y=\"637\" fill=\"#e8c37b\">\u2022 Treat 14\/25 and 18\/30 kV matrices as archival until current manufacture is contractually confirmed.<\/text>\n<\/g>\n<\/svg><\/div>\n\n<h2>14. Installation, termination and acceptance<\/h2>\n<ul>\n<li>Confirm the full designation, voltage class, conductor finish, screen option, phase section, split-PE section and pilot construction.<\/li>\n<li>Use sealed medium-voltage terminations sized to the exact Dmin\/Dmax, semiconductive-layer design and core-screen architecture.<\/li>\n<li>Define whether the pilot is used for ground-check, interlock or control; verify voltage, current and continuity-monitoring equipment.<\/li>\n<li>For screened cores, engineer the bonding point, screen-fault current, touch voltage and protection clearing time.<\/li>\n<li>Verify the dragging route for abrasion, sharp rock edges, vehicle crossings, slope, water accumulation and cable recovery procedure.<\/li>\n<li>Control torsion: \u00b1100\u00b0\/m belongs to the unshielded product description; \u00b125\u00b0\/m belongs to the archival screened design.<\/li>\n<li>Record conductor resistance, insulation\/withstand results, PE continuity, pilot-loop resistance and dimensional inspection before commissioning.<\/li>\n<\/ul>\n\n<h2>15. FMEA \u2014 common failure modes<\/h2>\n<div class=\"grid\">\n<div class=\"warn\"><strong>Wrong screen variant:<\/strong> an unshielded termination is used on a screened cable, creating field-control and earthing errors.<\/div>\n<div class=\"warn\"><strong>Archival force misread:<\/strong> 20 N\/mm\u00b2 is applied to a legacy table whose published force equals 15 N\/mm\u00b2.<\/div>\n<div class=\"warn\"><strong>Torsion overload:<\/strong> \u00b1100\u00b0\/m is applied to the screened design that was published at \u00b125\u00b0\/m.<\/div>\n<div class=\"warn\"><strong>Pilot misuse:<\/strong> the 10 mm\u00b2 pilot is connected without matching the ground-check or control system.<\/div>\n<div class=\"warn\"><strong>Sheath damage:<\/strong> dragging over sharp rock creates cuts that propagate through the bonded sheath system.<\/div>\n<div class=\"warn\"><strong>Version substitution:<\/strong> a 2016 bare-conductor design is replaced by a current tinned-conductor design without approval.<\/div>\n<\/div>\n\n<h2>16. Source map and traceability<\/h2>\n<div class=\"table-scroll\"><table><thead><tr><th>Role<\/th><th>Document<\/th><th>Pages<\/th><th>Use in this article<\/th><\/tr><\/thead><tbody>\n<tr><td>Current technical description<\/td><td>Prysmian Powering the Surface, 2025<\/td><td>pp. 32\u201335<\/td><td>Construction, 36-row matrix, 20 N\/mm\u00b2, \u00b1100\u00b0\/m, 6D\/10D, tinned conductors.<\/td><\/tr>\n<tr><td>Current identifiers<\/td><td>Prysmian Mining &#038; Tunnelling General Catalogue, 2019<\/td><td>pp. 40\u201342<\/td><td>Selected Part\/MLFB numbers and the same 36-row core matrix.<\/td><\/tr>\n<tr><td>Archival extended range<\/td><td>Prysmian Solutions for the Mining Industry, 2016<\/td><td>pp. 40\u201347<\/td><td>Unscreened 14\/25 and 18\/30 kV data; 54-row copper-core-screen matrix.<\/td><\/tr>\n<tr><td>Regional legacy cross-check<\/td><td>Legacy CSA-oriented SB-SAM screen document<\/td><td>pp. 1\u20134<\/td><td>15 N\/mm\u00b2, \u00b125\u00b0\/m and screened construction; used only to explain the archival force conflict.<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<div class=\"warn\">This guide is for preliminary engineering and source comparison. It does not certify present availability, approvals, compound identity, conductor finish, water depth or interchangeability of different document generations.<\/div>\n<\/main>\n\n<footer><div class=\"wrap\">\n<h3>Feichun Cable \u2014 PROTOLON (SB-SAM) engineering support<\/h3>\n<div class=\"contact\"><div><strong>Telephone<\/strong><br><a href=\"tel:+8613855123218\">+86 13855123218<\/a><\/div><div><strong>Technical email<\/strong><br><a href=\"mailto:Tech@feichuncables.com\">Tech@feichuncables.com<\/a><\/div><\/div>\n<p class=\"small\">Feichun Cable is not affiliated with the owners of the PROTOLON, SB-SAM, (N)TSCGEWOEU or (N)TSCGECEWOEU designations. The diagrams are independent engineering reconstructions based on published descriptions, not manufacturing drawings. Product data must be confirmed for the exact order.<\/p>\n<div>FEICHUN-PROTOLON-SB-SAM-HQ-FULL-SERIES-EN \u00b7 03\/08\/2026<\/div>\n<\/div><\/footer><\/body><\/html>\n","protected":false},"excerpt":{"rendered":"A source-controlled technical reference covering the current optimized-wall-thickness cable, the archival high-voltage extension, the copper-core-screen version, detailed material architecture, mechanical boundaries, electrical data, document conflicts and field selection.","protected":false},"author":1,"featured_media":25105,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"left","csco_page_header_type":"title","csco_page_load_nextpost":"","footnotes":""},"categories":[66,56,27157],"tags":[16,111,17],"class_list":["post-25103","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-reeling-cable","category-27157","tag-din-vde-0250","tag-mining-cable","tag-reeling-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/comments?post=25103"}],"version-history":[{"count":1,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25103\/revisions"}],"predecessor-version":[{"id":25106,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25103\/revisions\/25106"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/25105"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=25103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=25103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=25103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}