{"id":24631,"date":"2026-07-28T10:33:03","date_gmt":"2026-07-28T02:33:03","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=24631"},"modified":"2026-07-28T10:33:06","modified_gmt":"2026-07-28T02:33:06","slug":"protolon-st3e-ntscgewoeu-12-20-%d0%ba%d0%b2-%d0%bf%d0%be%d0%b4%d0%b2%d0%be%d0%b4%d0%bd%d1%8b%d0%b9-%d0%b3%d0%b8%d0%b1%d0%ba%d0%b8%d0%b9-%d0%ba%d0%b0%d0%b1%d0%b5%d0%bb%d1%8c-%d1%81-%d0%b8","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/protolon-st3e-ntscgewoeu-12-20-%d0%ba%d0%b2-%d0%bf%d0%be%d0%b4%d0%b2%d0%be%d0%b4%d0%bd%d1%8b%d0%b9-%d0%b3%d0%b8%d0%b1%d0%ba%d0%b8%d0%b9-%d0%ba%d0%b0%d0%b1%d0%b5%d0%bb%d1%8c-%d1%81-%d0%b8\/","title":{"rendered":"PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412 \u2014 \u043f\u043e\u0434\u0432\u043e\u0434\u043d\u044b\u0439 \u0433\u0438\u0431\u043a\u0438\u0439 \u043a\u0430\u0431\u0435\u043b\u044c \u0441 \u0438\u043d\u0434\u0438\u0432\u0438\u0434\u0443\u0430\u043b\u044c\u043d\u044b\u043c\u0438 concentric PE conductors"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"22373f\" data-has-transparency=\"false\" style=\"--dominant-color: #22373f;\" loading=\"lazy\" decoding=\"async\" width=\"1188\" height=\"628\" sizes=\"auto, (max-width: 1188px) 100vw, 1188px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-1188x628.avif\" alt=\"\" class=\"wp-image-24632 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-1188x628.avif 1188w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-300x159.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-768x406.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-1536x812.avif 1536w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-400x211.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-800x423.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-832x440.avif 832w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744-1248x660.avif 1248w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1744.avif 1568w\" \/><\/figure>\n\n\n\n\n<!DOCTYPE html><html lang=\"ru\"><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width,initial-scale=1\">\n<title>PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412 | Underwater 500 m Guide<\/title>\n<meta name=\"description\" content=\"PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412: underwater use to 500 m, individual concentric PE conductors, waterproof EPR inner sheath, CM\/CPE 5GM3 outer sheath, \u00b125\u00b0\/\u043c and 29 \u043a\u0412 test.\">\n<style>\n:root{--bg:#031018;--panel:#0b1f2a;--panel2:#133340;--ink:#f2f8fb;--line:#31576a;--cyan:#4fe0ff;--blue:#348fff;--green:#65e39c;--sand:#e7c27c;--red:#ff7069;--violet:#b89dff;--copper:#d88d47}\n*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,'Segoe UI',sans-serif;line-height:1.7}.container{max-width:1500px;margin:auto;padding:0 24px}a{color:var(--cyan)}.hero{padding:64px 0;background:radial-gradient(circle at 14% 8%,rgba(79,224,255,.23),transparent 35%),radial-gradient(circle at 88% 15%,rgba(52,143,255,.17),transparent 31%),linear-gradient(135deg,#031018,#07354d);border-bottom:1px solid var(--line)}h1{font-size:42px;line-height:1.15}h2{margin-top:48px;border-left:6px solid var(--cyan);padding-left:14px}h3,h4{color:var(--sand)}.sub{font-size:20px;color:#dceaf0}.badges,.meta{display:flex;gap:10px;flex-wrap:wrap}.badge,.meta span{background:#07161e;border:1px solid var(--line);border-radius:22px;padding:8px 13px;font-weight:800}.cards,.grid,.spec-grid,.compare-grid,.fmea-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin:22px 0}.card,.box,.spec,.note,.warn,.compare,.fmea{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:18px}.card{border-top:4px solid var(--cyan)}.value{font-size:28px;font-weight:900;color:var(--cyan)}.note{border-left:6px solid var(--cyan)}.warn{border-left:7px solid var(--red)}.compare{border-top:5px solid var(--violet)}.fmea{border-left:5px solid var(--red)}.toc{background:var(--panel);border:1px solid var(--line);border-left:7px solid var(--cyan);border-radius:9px;padding:18px;margin:25px 0}.toc ol{columns:2}.truth{background:linear-gradient(120deg,rgba(79,224,255,.14),rgba(52,143,255,.08));border:1px solid var(--line);border-left:7px solid var(--cyan);padding:18px;border-radius:9px}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:8px;margin:18px 0}table{width:100%;border-collapse:collapse;background:#07161e}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}.formula{white-space:pre-line;background:#07161e;border:1px solid var(--line);padding:18px;border-radius:9px}.svg-wrap{background:#07161e;border:1px solid var(--line);padding:14px;margin:22px 0}.caption{text-align:center;color:#9fb6c1}.contact{display:grid;grid-template-columns:1fr 1fr;gap:14px}.contact div{background:#07161e;border:1px solid var(--line);padding:15px;border-radius:7px}footer{margin-top:48px;background:#02080c;padding:32px 0}.small{font-size:12px;color:#91a9b4}@media(max-width:760px){h1{font-size:30px}.toc ol{columns:1}.contact{grid-template-columns:1fr}}\n<\/style><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"TechArticle\", \"headline\": \"PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412 \u2014 underwater cable to 500 m\", \"description\": \"Russian engineering guide for a 12\/20 kV underwater cable with individual concentric PE conductors, waterproof EPR inner sheath, CM\/CPE outer sheath, 500 m depth and special 240 mm\u00b2 version with 3x2,5ST.\", \"author\": {\"@type\": \"Organization\", \"name\": \"Feichun Cable\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"Feichun Cable\"}}<\/script><\/head><body>\n\n<section class=\"hero\"><div class=\"container\">\n<div class=\"badges\"><span class=\"badge\">PROTOLON (ST)3E<\/span><span class=\"badge\">NTSCGEWOEU<\/span><span class=\"badge\">12\/20 (24) \u043a\u0412<\/span><span class=\"badge\">29 \u043a\u0412 test<\/span><span class=\"badge\">500 \u043c<\/span><span class=\"badge\">3E Concentric PE<\/span><\/div>\n<h1>PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412 \u2014 \u043f\u043e\u0434\u0432\u043e\u0434\u043d\u044b\u0439 \u0433\u0438\u0431\u043a\u0438\u0439 \u043a\u0430\u0431\u0435\u043b\u044c \u0441 \u0438\u043d\u0434\u0438\u0432\u0438\u0434\u0443\u0430\u043b\u044c\u043d\u044b\u043c\u0438 concentric PE conductors<\/h1>\n<div class=\"sub\">\u0414\u043b\u044f dredgers, floating docks, pumps \u0438 \u0434\u0440\u0443\u0433\u043e\u0433\u043e \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0432 sewage, salt water \u0438 brackish water \u043d\u0430 \u0433\u043b\u0443\u0431\u0438\u043d\u0430\u0445 \u0434\u043e 500 \u043c.<\/div>\n<p>\u041a\u0430\u0436\u0434\u0430\u044f \u0433\u043b\u0430\u0432\u043d\u0430\u044f \u0436\u0438\u043b\u0430 \u0438\u043c\u0435\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 concentric protective-earth conductor, \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0432\u0435\u0440\u0445 insulation system. \u0412\u043e\u0434\u043e\u0437\u0430\u0449\u0438\u0442\u0430 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f special waterproof EPR inner sheath \u0438 CM\/CPE 5GM3 outer sheath.<\/p>\n<p>\u0421\u0442\u0440\u043e\u043a\u0430 240 \u043c\u043c\u00b2 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0437\u0430\u043f\u0438\u0441\u044c 3&#215;2,5ST. \u0415\u0435 \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u0438 electrical function \u0432 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0435 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0438 \u0442\u0440\u0435\u0431\u0443\u044e\u0442 approved drawing.<\/p>\n<div class=\"meta\"><span>20 000 \u0412<\/span><span>29 \u043a\u0412 test<\/span><span>\u221240\u2026+80 \u00b0C fixed<\/span><span>\u221225\u2026+60 \u00b0C flexible<\/span><span>\u00b125\u00b0\/\u043c<\/span><span>15 \u041d\/\u043c\u043c\u00b2<\/span><\/div>\n<\/div><\/section>\n\n<div class=\"container\">\n<div class=\"cards\">\n<div class=\"card\"><div>\u0421\u0440\u0435\u0434\u0430<\/div><div class=\"value\">Underwater<\/div><div>sewage, salt, brackish<\/div><\/div>\n<div class=\"card\"><div>\u0413\u043b\u0443\u0431\u0438\u043d\u0430<\/div><div class=\"value\">500 m<\/div><div>supplied maximum<\/div><\/div>\n<div class=\"card\"><div>PE architecture<\/div><div class=\"value\">3E<\/div><div>one concentric PE per phase<\/div><\/div>\n<div class=\"card\"><div>\u0422\u0438\u043f\u043e\u0440\u0430\u0437\u043c\u0435\u0440\u044b<\/div><div class=\"value\">11<\/div><div>source order preserved<\/div><\/div>\n<\/div>\n\n<div class=\"toc\"><h3>\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/h3><ol><li>\u041d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435<\/li><li>\u041e\u0442\u043b\u0438\u0447\u0438\u044f<\/li><li>\u0421\u0435\u0447\u0435\u043d\u0438\u0435<\/li><li>500 \u043c pressure<\/li><li>Termination<\/li><li>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u044b<\/li><li>\u0420\u0430\u0437\u043c\u0435\u0440\u044b<\/li><li>\u0420\u0430\u0441\u0447\u0435\u0442\u044b<\/li><li>Buoyancy<\/li><li>\u041f\u0440\u0438\u0435\u043c\u043a\u0430<\/li><\/ol><\/div>\n\n<h2>1. \u041f\u043e\u0434\u0432\u043e\u0434\u043d\u043e\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435<\/h2>\n<div class=\"svg-wrap\"><svg viewBox=\"0 0 1380 720\" role=\"img\" aria-label=\"Underwater 20 kV cable application\">\n<defs><linearGradient id=\"water20\" x1=\"0\" y1=\"0\" x2=\"0\" y2=\"1\"><stop offset=\"0\" stop-color=\"#0d6589\"\/><stop offset=\"1\" stop-color=\"#031018\"\/><\/linearGradient><\/defs>\n<rect width=\"1380\" height=\"720\" fill=\"#031018\"\/><rect x=\"25\" y=\"25\" width=\"1330\" height=\"670\" fill=\"#0b1f2a\" stroke=\"#31576a\"\/>\n<rect x=\"45\" y=\"110\" width=\"1290\" height=\"520\" fill=\"url(#water20)\"\/><path d=\"M45 170 Q120 140 195 170 T345 170 T495 170 T645 170 T795 170 T945 170 T1095 170 T1245 170 T1335 170\" fill=\"none\" stroke=\"#4fe0ff\" stroke-width=\"8\"\/>\n<rect x=\"930\" y=\"80\" width=\"250\" height=\"90\" fill=\"#354955\" stroke=\"#9fb6c1\"\/><rect x=\"1005\" y=\"48\" width=\"105\" height=\"42\" fill=\"#354955\" stroke=\"#9fb6c1\"\/>\n<path d=\"M1060 170 C1000 260 930 350 820 430 C700 515 560 560 390 620\" fill=\"none\" stroke=\"#d88d47\" stroke-width=\"34\"\/><path d=\"M1060 170 C1000 260 930 350 820 430 C700 515 560 560 390 620\" fill=\"none\" stroke=\"#4fe0ff\" stroke-width=\"8\"\/>\n<text x=\"60\" y=\"72\" fill=\"#4fe0ff\" font-size=\"24\" font-family=\"Arial\" font-weight=\"900\">PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412 \u00b7 underwater \u0434\u043e 500 \u043c<\/text>\n<text x=\"60\" y=\"670\" fill=\"#dceaf0\" font-size=\"18\" font-family=\"Arial\">Dredgers \u00b7 floating docks \u00b7 pumps \u00b7 sewage \u00b7 salt water \u00b7 brackish water<\/text>\n<\/svg><p class=\"caption\">20-\u043a\u0412 \u043f\u043e\u0434\u0432\u043e\u0434\u043d\u043e\u0435 \u043f\u0438\u0442\u0430\u043d\u0438\u0435 dredging equipment, floating infrastructure \u0438 pumping systems.<\/p><\/div>\n\n<div class=\"truth\"><strong>\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u0439:<\/strong> 20-\u043a\u0412 underwater power supply \u0434\u043b\u044f dredging equipment, floating docks, pumps \u0438 \u0434\u0440\u0443\u0433\u0438\u0445 submerged systems \u043f\u0440\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0435.<\/div>\n\n<h2>2. \u041e\u0442\u043b\u0438\u0447\u0438\u044f \u043e\u0442 \u0441\u043e\u0441\u0435\u0434\u043d\u0438\u0445 \u0441\u0435\u0440\u0438\u0439<\/h2>\n<div class=\"svg-wrap\"><svg viewBox=\"0 0 1500 820\" role=\"img\" aria-label=\"Comparison with lower and higher voltage ST3E\">\n<rect width=\"1500\" height=\"820\" fill=\"#031018\"\/><rect x=\"25\" y=\"25\" width=\"1450\" height=\"770\" fill=\"#0b1f2a\" stroke=\"#31576a\"\/>\n<text x=\"50\" y=\"72\" fill=\"#4fe0ff\" font-size=\"24\" font-family=\"Arial\" font-weight=\"900\">ST3E 12\/20 \u043a\u0412 vs ST3E 6\/10 \u043a\u0412, ST3E 14\/25 \u043a\u0412 \u0438 ST split-earth<\/text>\n<g font-family=\"Arial\">\n<rect x=\"45\" y=\"115\" width=\"445\" height=\"75\" fill=\"#07161e\" stroke=\"#4fe0ff\"\/><text x=\"70\" y=\"158\" fill=\"#4fe0ff\" font-size=\"18\" font-weight=\"900\">ST3E 12\/20 \u043a\u0412<\/text>\n<rect x=\"525\" y=\"115\" width=\"445\" height=\"75\" fill=\"#07161e\" stroke=\"#65e39c\"\/><text x=\"550\" y=\"158\" fill=\"#65e39c\" font-size=\"18\" font-weight=\"900\">ST3E 6\/10 \u0438 14\/25 \u043a\u0412<\/text>\n<rect x=\"1005\" y=\"115\" width=\"445\" height=\"75\" fill=\"#07161e\" stroke=\"#e7c27c\"\/><text x=\"1030\" y=\"158\" fill=\"#e7c27c\" font-size=\"18\" font-weight=\"900\">PROTOLON (ST) split-earth<\/text>\n<g fill=\"#dceaf0\" font-size=\"16\">\n<text x=\"65\" y=\"230\">\u2022 12\/20 (24) \u043a\u0412<\/text><text x=\"65\" y=\"268\">\u2022 29 \u043a\u0412 test<\/text><text x=\"65\" y=\"306\">\u2022 underwater \u0434\u043e 500 \u043c<\/text><text x=\"65\" y=\"344\">\u2022 concentric PE on each phase<\/text><text x=\"65\" y=\"382\">\u2022 waterproof EPR + CPE<\/text><text x=\"65\" y=\"420\">\u2022 flexible \u221225 \u00b0C<\/text><text x=\"65\" y=\"458\">\u2022 torsion \u00b125\u00b0\/\u043c<\/text><text x=\"65\" y=\"496\">\u2022 special 240 \u043c\u043c\u00b2 + 3&#215;2,5ST<\/text>\n<text x=\"545\" y=\"230\">\u2022 same 3E concept<\/text><text x=\"545\" y=\"268\">\u2022 17 or 36 \u043a\u0412 test<\/text><text x=\"545\" y=\"306\">\u2022 same 500 \u043c claim<\/text><text x=\"545\" y=\"344\">\u2022 different insulation duty<\/text><text x=\"545\" y=\"382\">\u2022 different diameters\/mass<\/text><text x=\"545\" y=\"420\">\u2022 different termination kits<\/text><text x=\"545\" y=\"458\">\u2022 no cross-use of accessories<\/text><text x=\"545\" y=\"496\">\u2022 verify exact voltage class<\/text>\n<text x=\"1025\" y=\"230\">\u2022 PE split into 3 interstices<\/text><text x=\"1025\" y=\"268\">\u2022 no per-phase concentric PE<\/text><text x=\"1025\" y=\"306\">\u2022 some versions \u00b1100\u00b0\/\u043c<\/text><text x=\"1025\" y=\"344\">\u2022 termination logic differs<\/text><text x=\"1025\" y=\"382\">\u2022 notation uses \/3, not \/3E<\/text><text x=\"1025\" y=\"420\">\u2022 do not transfer drawings<\/text><text x=\"1025\" y=\"458\">\u2022 environment remains critical<\/text><text x=\"1025\" y=\"496\">\u2022 PE geometry must match<\/text>\n<\/g>\n<rect x=\"70\" y=\"600\" width=\"1360\" height=\"110\" rx=\"8\" fill=\"#07161e\" stroke=\"#31576a\"\/>\n<text x=\"100\" y=\"643\" fill=\"#e7c27c\" font-weight=\"900\">20-\u043a\u0412 submerged duty + per-phase concentric PE \u2192 PROTOLON (ST)3E 12\/20 \u043a\u0412.<\/text>\n<text x=\"100\" y=\"678\" fill=\"#dceaf0\">Higher\/lower voltage \u2192 corresponding ST3E. Three PE sections in interstices \u2192 PROTOLON (ST), not ST3E.<\/text>\n<\/g><\/svg><p class=\"caption\">\u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0442\u0441\u044f voltage class, PE geometry, water depth \u0438 termination system.<\/p><\/div>\n\n<div class=\"compare-grid\">\n<div class=\"compare\"><h4>\u041f\u0440\u043e\u0442\u0438\u0432 ST3E 6\/10 \u043a\u0412<\/h4><p>\u0422\u0430 \u0436\u0435 underwater 3E architecture, \u043d\u043e 12\/20-\u043a\u0412 insulation duty \u0438 29-\u043a\u0412 test.<\/p><\/div>\n<div class=\"compare\"><h4>\u041f\u0440\u043e\u0442\u0438\u0432 ST3E 14\/25 \u043a\u0412<\/h4><p>\u0422\u0430 \u0436\u0435 PE \u0438 waterproof concept, \u043d\u043e \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u0439 voltage class \u0438 \u0434\u0440\u0443\u0433\u043e\u0439 termination kit.<\/p><\/div>\n<div class=\"compare\"><h4>\u041f\u0440\u043e\u0442\u0438\u0432 PROTOLON (ST)<\/h4><p>\u0417\u0434\u0435\u0441\u044c PE \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0430 \u043a\u0430\u0436\u0434\u043e\u0439 \u0444\u0430\u0437\u0435; \u0443 ST \u043e\u043d \u0440\u0430\u0437\u0434\u0435\u043b\u0435\u043d \u043d\u0430 \u0442\u0440\u0438 outer-interstice \u0441\u0435\u043a\u0446\u0438\u0438.<\/p><\/div>\n<div class=\"compare\"><h4>\u041e\u0441\u043e\u0431\u0430\u044f \u0441\u0442\u0440\u043e\u043a\u0430<\/h4><p>240 \u043c\u043c\u00b2 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 +3&#215;2,5ST \u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0433\u043e manufacturing drawing.<\/p><\/div>\n<\/div>\n\n<h2>3. \u0414\u0435\u0442\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u0435\u0447\u0435\u043d\u0438\u0435<\/h2>\n<div class=\"svg-wrap\"><svg viewBox=\"0 0 1540 900\" role=\"img\" aria-label=\"Detailed 20 kV concentric PE cross-section\">\n<defs><pattern id=\"cu20a\" width=\"14\" height=\"14\" patternUnits=\"userSpaceOnUse\"><circle cx=\"7\" cy=\"7\" r=\"4\" fill=\"#d88d47\" stroke=\"#ffd6a3\"\/><\/pattern><pattern id=\"cu20b\" width=\"18\" height=\"18\" patternUnits=\"userSpaceOnUse\"><circle cx=\"9\" cy=\"9\" r=\"3.8\" fill=\"#d88d47\" stroke=\"#ffd6a3\"\/><\/pattern><\/defs>\n<rect width=\"1540\" height=\"900\" fill=\"#031018\"\/><rect x=\"25\" y=\"25\" width=\"1490\" height=\"850\" fill=\"#0b1f2a\" stroke=\"#31576a\"\/>\n<text x=\"50\" y=\"70\" fill=\"#4fe0ff\" font-size=\"24\" font-family=\"Arial\" font-weight=\"900\">PROTOLON (ST)3E 12\/20 \u043a\u0412 \u00b7 one concentric protective-earth system per phase<\/text>\n<g transform=\"translate(470,470)\">\n<circle r=\"315\" fill=\"#25424d\" stroke=\"#348fff\" stroke-width=\"14\"\/><circle r=\"285\" fill=\"#395863\" stroke=\"#65e39c\" stroke-width=\"10\"\/><circle r=\"255\" fill=\"#112630\" stroke=\"#31576a\" stroke-width=\"5\"\/>\n<g id=\"phase20\"><circle r=\"108\" fill=\"url(#cu20b)\" stroke=\"#e7c27c\" stroke-width=\"8\"\/><circle r=\"91\" fill=\"#101b21\" stroke=\"#4fe0ff\" stroke-width=\"8\"\/><circle r=\"75\" fill=\"#352a20\" stroke=\"#e7c27c\" stroke-width=\"10\"\/><circle r=\"56\" fill=\"#101b21\" stroke=\"#263b46\" stroke-width=\"7\"\/><circle r=\"41\" fill=\"url(#cu20a)\" stroke=\"#ffd6a3\" stroke-width=\"3\"\/><\/g>\n<use href=\"#phase20\" transform=\"translate(0,-132)\"\/><use href=\"#phase20\" transform=\"translate(114,66)\"\/><use href=\"#phase20\" transform=\"translate(-114,66)\"\/>\n<\/g>\n<g transform=\"translate(870,110)\" font-family=\"Arial\"><rect width=\"620\" height=\"650\" fill=\"#07161e\" stroke=\"#31576a\"\/>\n<text x=\"22\" y=\"42\" fill=\"#4fe0ff\" font-size=\"20\" font-weight=\"900\">\u0421\u043b\u043e\u0438 \u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438<\/text>\n<text x=\"30\" y=\"90\" fill=\"#dceaf0\">1. Tinned copper conductor, class 5<\/text>\n<text x=\"30\" y=\"136\" fill=\"#dceaf0\">2. Inner semi-conductive EPR<\/text>\n<text x=\"30\" y=\"182\" fill=\"#dceaf0\">3. EPR insulation, special compound 3GI3<\/text>\n<text x=\"30\" y=\"228\" fill=\"#dceaf0\">4. Outer semi-conductive EPR<\/text>\n<text x=\"30\" y=\"274\" fill=\"#dceaf0\">5. Individual concentric PE on every phase<\/text>\n<text x=\"30\" y=\"320\" fill=\"#dceaf0\">6. Waterproof special EPR inner sheath<\/text>\n<text x=\"30\" y=\"366\" fill=\"#dceaf0\">7. Waterproof CM\/CPE 5GM3 outer sheath<\/text>\n<rect x=\"22\" y=\"415\" width=\"570\" height=\"185\" rx=\"7\" fill=\"#0b1f2a\" stroke=\"#31576a\"\/>\n<text x=\"40\" y=\"450\" fill=\"#e7c27c\" font-weight=\"900\">\u041e\u0441\u043e\u0431\u0430\u044f \u0441\u0442\u0440\u043e\u043a\u0430<\/text>\n<text x=\"40\" y=\"490\" fill=\"#dceaf0\">\u2022 3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/text>\n<text x=\"40\" y=\"526\" fill=\"#dceaf0\">\u2022 \u0444\u0443\u043d\u043a\u0446\u0438\u044f \u0438 geometry 3&#215;2,5ST \u043d\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u044b<\/text>\n<text x=\"40\" y=\"562\" fill=\"#dceaf0\">\u2022 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f approved manufacturing drawing<\/text>\n<\/g><\/svg><p class=\"caption\">\u041a\u0430\u0436\u0434\u0430\u044f \u0444\u0430\u0437\u0430 \u0438\u043c\u0435\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 concentric PE; \u0442\u043e\u043b\u044c\u043a\u043e 240 \u043c\u043c\u00b2 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 3&#215;2,5ST \u043f\u043e \u0438\u0441\u0445\u043e\u0434\u043d\u043e\u0439 \u0437\u0430\u043f\u0438\u0441\u0438.<\/p><\/div>\n\n<div class=\"spec-grid\">\n<div class=\"spec\"><span>\u041f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a<\/span><span>tinned finely stranded copper, class 5<\/span><\/div>\n<div class=\"spec\"><span>Inner semicon<\/span><span>semi-conductive EPR<\/span><\/div>\n<div class=\"spec\"><span>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/span><span>EPR special compound 3GI3<\/span><\/div>\n<div class=\"spec\"><span>Outer semicon<\/span><span>semi-conductive EPR<\/span><\/div>\n<div class=\"spec\"><span>PE<\/span><span>individual concentric conductor on each phase<\/span><\/div>\n<div class=\"spec\"><span>Inner sheath<\/span><span>special waterproof EPR compound<\/span><\/div>\n<div class=\"spec\"><span>Outer sheath<\/span><span>CM\/CPE 5GM3 waterproof<\/span><\/div>\n<div class=\"spec\"><span>Special<\/span><span>3&#215;2,5ST only in the 240 \u043c\u043c\u00b2 source row<\/span><\/div>\n<\/div>\n\n<h2>4. \u0413\u043b\u0443\u0431\u0438\u043d\u0430 500 \u043c<\/h2>\n<div class=\"svg-wrap\"><svg viewBox=\"0 0 1450 700\" role=\"img\" aria-label=\"Hydrostatic pressure at 500 metres\">\n<rect width=\"1450\" height=\"700\" fill=\"#031018\"\/><rect x=\"25\" y=\"25\" width=\"1400\" height=\"650\" fill=\"#0b1f2a\" stroke=\"#31576a\"\/>\n<text x=\"50\" y=\"72\" fill=\"#4fe0ff\" font-size=\"24\" font-family=\"Arial\" font-weight=\"900\">500 \u043c depth \u00b7 hydrostatic pressure and 20-\u043a\u0412 system boundary<\/text>\n<rect x=\"90\" y=\"120\" width=\"330\" height=\"480\" fill=\"#073a50\" stroke=\"#4fe0ff\"\/><path d=\"M250 145 C245 240 260 330 250 430 C240 510 250 565 250 590\" fill=\"none\" stroke=\"#d88d47\" stroke-width=\"28\"\/>\n<line x1=\"425\" y1=\"120\" x2=\"490\" y2=\"120\" stroke=\"#e7c27c\" stroke-width=\"4\"\/><text x=\"505\" y=\"128\" fill=\"#dceaf0\" font-family=\"Arial\">0 \u043c<\/text>\n<line x1=\"425\" y1=\"360\" x2=\"490\" y2=\"360\" stroke=\"#e7c27c\" stroke-width=\"4\"\/><text x=\"505\" y=\"368\" fill=\"#dceaf0\" font-family=\"Arial\">250 \u043c<\/text>\n<line x1=\"425\" y1=\"600\" x2=\"490\" y2=\"600\" stroke=\"#e7c27c\" stroke-width=\"4\"\/><text x=\"505\" y=\"608\" fill=\"#dceaf0\" font-family=\"Arial\">500 \u043c<\/text>\n<g font-family=\"Arial\"><rect x=\"640\" y=\"145\" width=\"700\" height=\"390\" rx=\"8\" fill=\"#07161e\" stroke=\"#31576a\"\/>\n<text x=\"675\" y=\"190\" fill=\"#e7c27c\" font-size=\"20\" font-weight=\"900\">p = \u03c1gh<\/text>\n<text x=\"675\" y=\"240\" fill=\"#dceaf0\">Fresh water: 4.91 \u041c\u041f\u0430 gauge<\/text>\n<text x=\"675\" y=\"295\" fill=\"#dceaf0\">Sea water: 5.03 \u041c\u041f\u0430 gauge<\/text>\n<text x=\"675\" y=\"350\" fill=\"#dceaf0\">Sea-water absolute: 5.13 \u041c\u041f\u0430<\/text>\n<text x=\"675\" y=\"420\" fill=\"#4fe0ff\" font-weight=\"900\">Cable, joint, gland \u0438 termination \u0434\u043e\u043b\u0436\u043d\u044b<\/text>\n<text x=\"675\" y=\"455\" fill=\"#4fe0ff\" font-weight=\"900\">\u0431\u044b\u0442\u044c qualified \u043a\u0430\u043a \u0435\u0434\u0438\u043d\u0430\u044f 12\/20-\u043a\u0412 underwater system.<\/text>\n<\/g><\/svg><p class=\"caption\">\u041d\u0430 500 \u043c hydrostatic pressure \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043e\u043a\u043e\u043b\u043e 4,9\u20135,0 \u041c\u041f\u0430 gauge.<\/p><\/div>\n\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>Dmax<\/th><th>Fresh water<\/th><th>Sea water<\/th><th>Sea-water abs.<\/th><th>Limit<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>59,3 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>59,3 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>60,6 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>61 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>63,9 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>71,1 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>75 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>81,8 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>87,3 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>101,5 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>92,9 \u043c\u043c<\/td><td>4,91 \u041c\u041f\u0430 gauge<\/td><td>5,03 \u041c\u041f\u0430 gauge<\/td><td>5,13 \u041c\u041f\u0430 abs.<\/td><td>500 \u043c supplied limit<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"warn\"><strong>\u0412\u0430\u0436\u043d\u043e:<\/strong> 500-\u043c\u0435\u0442\u0440\u043e\u0432\u044b\u0439 cable rating \u043d\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u043c rating \u0434\u043b\u044f joint, gland \u0438\u043b\u0438 termination.<\/div>\n\n<h2>5. 12\/20-\u043a\u0412 termination \u0438 sealing<\/h2>\n<div class=\"svg-wrap\"><svg viewBox=\"0 0 1460 700\" role=\"img\" aria-label=\"20 kV underwater termination\">\n<rect width=\"1460\" height=\"700\" fill=\"#031018\"\/><rect x=\"25\" y=\"25\" width=\"1410\" height=\"650\" fill=\"#0b1f2a\" stroke=\"#31576a\"\/>\n<text x=\"50\" y=\"72\" fill=\"#4fe0ff\" font-size=\"24\" font-family=\"Arial\" font-weight=\"900\">12\/20-\u043a\u0412 underwater termination: PE bonding, stress control and pressure sealing<\/text>\n<g font-family=\"Arial\">\n<rect x=\"45\" y=\"130\" width=\"245\" height=\"125\" rx=\"8\" fill=\"#07161e\" stroke=\"#348fff\"\/><text x=\"70\" y=\"170\" fill=\"#348fff\" font-weight=\"900\">1. CM\/CPE cutback<\/text><text x=\"70\" y=\"210\" fill=\"#dceaf0\">no scoring<\/text>\n<rect x=\"320\" y=\"130\" width=\"245\" height=\"125\" rx=\"8\" fill=\"#07161e\" stroke=\"#65e39c\"\/><text x=\"345\" y=\"170\" fill=\"#65e39c\" font-weight=\"900\">2. Waterproof EPR<\/text><text x=\"345\" y=\"210\" fill=\"#dceaf0\">seal continuity<\/text>\n<rect x=\"595\" y=\"130\" width=\"245\" height=\"125\" rx=\"8\" fill=\"#07161e\" stroke=\"#d88d47\"\/><text x=\"620\" y=\"170\" fill=\"#d88d47\" font-weight=\"900\">3. Three PE systems<\/text><text x=\"620\" y=\"210\" fill=\"#dceaf0\">separate and bond<\/text>\n<rect x=\"870\" y=\"130\" width=\"245\" height=\"125\" rx=\"8\" fill=\"#07161e\" stroke=\"#e7c27c\"\/><text x=\"895\" y=\"170\" fill=\"#e7c27c\" font-weight=\"900\">4. Stress control<\/text><text x=\"895\" y=\"210\" fill=\"#dceaf0\">12\/20-\u043a\u0412 EPR<\/text>\n<rect x=\"1145\" y=\"130\" width=\"245\" height=\"125\" rx=\"8\" fill=\"#07161e\" stroke=\"#b89dff\"\/><text x=\"1170\" y=\"170\" fill=\"#b89dff\" font-weight=\"900\">5. Pressure seal<\/text><text x=\"1170\" y=\"210\" fill=\"#dceaf0\">depth-rated<\/text>\n<rect x=\"100\" y=\"350\" width=\"1260\" height=\"220\" rx=\"8\" fill=\"#07161e\" stroke=\"#31576a\"\/>\n<text x=\"130\" y=\"395\" fill=\"#e7c27c\" font-weight=\"900\">\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438<\/text>\n<text x=\"130\" y=\"438\" fill=\"#dceaf0\">\u2022 continuity of all three concentric PE systems<\/text>\n<text x=\"130\" y=\"478\" fill=\"#dceaf0\">\u2022 waterproof EPR and CM\/CPE sealing<\/text>\n<text x=\"130\" y=\"518\" fill=\"#dceaf0\">\u2022 29-\u043a\u0412 test documentation<\/text>\n<text x=\"760\" y=\"438\" fill=\"#dceaf0\">\u2022 depth rating of joint\/gland<\/text>\n<text x=\"760\" y=\"478\" fill=\"#dceaf0\">\u2022 corrosion protection in salt water<\/text>\n<text x=\"760\" y=\"518\" fill=\"#dceaf0\">\u2022 3&#215;2,5ST handling only by approved drawing<\/text>\n<\/g><\/svg><p class=\"caption\">20-\u043a\u0412 stress control \u0438 500-\u043c\u0435\u0442\u0440\u043e\u0432\u043e\u0435 pressure sealing \u0434\u043e\u043b\u0436\u043d\u044b \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u0435\u0434\u0438\u043d\u0430\u044f \u0437\u0430\u0434\u0430\u0447\u0430.<\/p><\/div>\n\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>External<\/th><th>PE architecture<\/th><th>\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0438<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>5DK5***<\/td><td>3 individual concentric PE systems; PE notation 25 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>5DK5834<\/td><td>3 individual concentric PE systems; PE notation 16 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>5DK5760<\/td><td>3 individual concentric PE systems; PE notation 16 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>5DK5833<\/td><td>3 individual concentric PE systems; PE notation 25 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>5DK5764<\/td><td>3 individual concentric PE systems; PE notation 25 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>5DK5763<\/td><td>3 individual concentric PE systems; PE notation 35 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>5DK5***<\/td><td>3 individual concentric PE systems; PE notation 50 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>5DK5***<\/td><td>3 individual concentric PE systems; PE notation 70 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>5DK5***<\/td><td>3 individual concentric PE systems; PE notation 70 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>5DK6***<\/td><td>3 individual concentric PE systems; PE notation 120 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint; additional 3&#215;2,5ST requires approved drawing<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>5DK5***<\/td><td>3 individual concentric PE systems; PE notation 95 \u043c\u043c\u00b2<\/td><td>12\/20-\u043a\u0412 stress control, waterproof EPR cutback, CM\/CPE sealing, depth-rated joint<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>6. \u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u044b \u0438 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430<\/h2>\n<div class=\"grid\">\n<div class=\"box\"><h4>DIN VDE 0250-813<\/h4><p>\u041e\u0431\u0449\u0430\u044f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f.<\/p><\/div>\n<div class=\"box\"><h4>VDE 0168<\/h4><p>Dredging-equipment application context.<\/p><\/div>\n<div class=\"box\"><h4>DIN VDE 0298-4<\/h4><p>Electrical parameters and ampacity.<\/p><\/div>\n<div class=\"box\"><h4>IEC 60332-1-2<\/h4><p>Flame retardant performance.<\/p><\/div>\n<div class=\"box\"><h4>IEC 60811-404<\/h4><p>Chemical behaviour.<\/p><\/div>\n<div class=\"box\"><h4>EN 50525-2-21<\/h4><p>Chemical-behaviour context.<\/p><\/div>\n<div class=\"box\"><h4>MSHA \/ GOST<\/h4><p>Certification context from supplied specification.<\/p><\/div>\n<div class=\"box\"><h4>Water resistance<\/h4><p>Excellent sea-water resistance.<\/p><\/div>\n<\/div>\n\n<h2>7. \u0420\u0430\u0437\u043c\u0435\u0440\u044b \u0438 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f<\/h2>\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>SAP<\/th><th>External<\/th><th>\u041f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a<\/th><th>Dmin<\/th><th>Dmax<\/th><th>\u043a\u0433\/\u043a\u043c<\/th><th>\u043a\u0433\/\u043c<\/th><th>PE<\/th><th>\u0414\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>ST_3E_20KV_004<\/td><td>5DK5***<\/td><td>6,4<\/td><td>55,3<\/td><td>59,3<\/td><td>4 350<\/td><td>4,35<\/td><td>25 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>20004727<\/td><td>5DK5834<\/td><td>6,4<\/td><td>55,3<\/td><td>59,3<\/td><td>4 580<\/td><td>4,58<\/td><td>16 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>20001449<\/td><td>5DK5760<\/td><td>7,6<\/td><td>56,6<\/td><td>60,6<\/td><td>4 940<\/td><td>4,94<\/td><td>16 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>20167511<\/td><td>5DK5833<\/td><td>7,6<\/td><td>57<\/td><td>61<\/td><td>4 930<\/td><td>4,93<\/td><td>25 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>20087015<\/td><td>5DK5764<\/td><td>9<\/td><td>59,9<\/td><td>63,9<\/td><td>5 790<\/td><td>5,79<\/td><td>25 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>20170540<\/td><td>5DK5763<\/td><td>10,9<\/td><td>67,1<\/td><td>71,1<\/td><td>7 090<\/td><td>7,09<\/td><td>35 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>20137463<\/td><td>5DK5***<\/td><td>12,6<\/td><td>71<\/td><td>75<\/td><td>8 280<\/td><td>8,28<\/td><td>50 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>20340430<\/td><td>5DK5***<\/td><td>14,1<\/td><td>77,8<\/td><td>81,8<\/td><td>10 000<\/td><td>10<\/td><td>70 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>20320770<\/td><td>5DK5***<\/td><td>16<\/td><td>82,3<\/td><td>87,3<\/td><td>11 400<\/td><td>11,4<\/td><td>70 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>\u2014<\/td><td>5DK6***<\/td><td>20,4<\/td><td>96,5<\/td><td>101,5<\/td><td>15 000<\/td><td>15<\/td><td>120 \u043c\u043c\u00b2<\/td><td>3&#215;2,5ST<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>20321371<\/td><td>5DK5***<\/td><td>17,8<\/td><td>87,9<\/td><td>92,9<\/td><td>13 300<\/td><td>13,3<\/td><td>95 \u043c\u043c\u00b2<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"warn\"><strong>25 \u043c\u043c\u00b2 anomaly:<\/strong> 3&#215;25+3&#215;25\/3E \u0438 3&#215;25+3&#215;16\/3E \u0438\u043c\u0435\u044e\u0442 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u0439 \u0434\u0438\u0430\u043c\u0435\u0442\u0440 \u0438 electrical values, \u043d\u043e \u0432\u0435\u0440\u0441\u0438\u044f \u0441 \u043c\u0435\u043d\u044c\u0448\u0438\u043c PE \u0442\u044f\u0436\u0435\u043b\u0435\u0435 \u043d\u0430 230 \u043a\u0433\/\u043a\u043c. \u0417\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u044b \u0431\u0435\u0437 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/div>\n<div class=\"warn\"><strong>35 \u043c\u043c\u00b2 anomaly:<\/strong> \u0432\u0435\u0440\u0441\u0438\u044f 3&#215;35+3&#215;25\/3E \u0438\u043c\u0435\u0435\u0442 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u0431\u043e\u043b\u044c\u0448\u0438\u0439 \u0434\u0438\u0430\u043c\u0435\u0442\u0440, \u043d\u043e \u043d\u0430 10 \u043a\u0433\/\u043a\u043c \u043b\u0435\u0433\u0447\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 3&#215;35+3&#215;16\/3E.<\/div>\n<div class=\"warn\"><strong>240 \u043c\u043c\u00b2 anomaly:<\/strong> \u0441\u0442\u0440\u043e\u043a\u0430 \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0430 \u043f\u0435\u0440\u0435\u0434 185 \u043c\u043c\u00b2, \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 +3&#215;2,5ST \u0438 \u043d\u0435 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0433\u043e SAP code \u0432 \u0438\u0441\u0445\u043e\u0434\u043d\u043e\u0439 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u043b\u043e\u043d\u043e\u043a. \u0412 \u0442\u0430\u0431\u043b\u0438\u0446\u0435 SAP \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0435\u043d \u043a\u0430\u043a \u00ab\u2014\u00bb, External code \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d \u043a\u0430\u043a 5DK6***.<\/div>\n<div class=\"note\"><strong>Source order:<\/strong> \u0432\u0441\u0435 11 \u0441\u0442\u0440\u043e\u043a \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u0438\u0441\u0445\u043e\u0434\u043d\u043e\u043c \u043f\u043e\u0440\u044f\u0434\u043a\u0435; 240 \u043c\u043c\u00b2 \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u043d\u043e \u043d\u0435 \u043f\u0435\u0440\u0435\u043d\u0435\u0441\u0435\u043d \u043f\u043e\u0441\u043b\u0435 185 \u043c\u043c\u00b2.<\/div>\n<div class=\"note\"><strong>External codes:<\/strong> \u043f\u043e\u043b\u043d\u044b\u0435 5DK5834, 5DK5760, 5DK5833, 5DK5764 \u0438 5DK5763 \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u044b; masked 5DK5*** \u0438 5DK6*** \u043d\u0435 \u0440\u0430\u0441\u0448\u0438\u0444\u0440\u043e\u0432\u044b\u0432\u0430\u043b\u0438\u0441\u044c.<\/div>\n\n<h2>8. \u042d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0440\u0430\u0441\u0447\u0435\u0442\u044b<\/h2>\n<p>\u041c\u043e\u0449\u043d\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u043d\u0430 \u043f\u0440\u0438 cos\u03c6 = 0,9. \u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u2014 \u043f\u043e R20 \u043d\u0430 100 \u043c. Charging current \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 U0 = 12 \u043a\u0412 \u0438 50 \u0413\u0446.<\/p>\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>Fmax<\/th><th>C<\/th><th>L<\/th><th>R20<\/th><th>\u0422\u043e\u043a<\/th><th>\u0410\/\u043c\u043c\u00b2<\/th><th>\u041c\u0412\u0410<\/th><th>\u041c\u0412\u0442<\/th><th>\u0394U\/100\u043c<\/th><th>Ic<\/th><th>Qc<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>1 125<\/td><td>170<\/td><td>0,41<\/td><td>0,795<\/td><td>139<\/td><td>5,56<\/td><td>4,82<\/td><td>4,33<\/td><td>0,096%<\/td><td>0,641<\/td><td>22,2<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>1 125<\/td><td>170<\/td><td>0,41<\/td><td>0,795<\/td><td>139<\/td><td>5,56<\/td><td>4,82<\/td><td>4,33<\/td><td>0,096%<\/td><td>0,641<\/td><td>22,2<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>1 575<\/td><td>190<\/td><td>0,39<\/td><td>0,565<\/td><td>172<\/td><td>4,91<\/td><td>5,96<\/td><td>5,36<\/td><td>0,084%<\/td><td>0,716<\/td><td>24,8<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>1 575<\/td><td>190<\/td><td>0,39<\/td><td>0,565<\/td><td>172<\/td><td>4,91<\/td><td>5,96<\/td><td>5,36<\/td><td>0,084%<\/td><td>0,716<\/td><td>24,8<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>2 250<\/td><td>210<\/td><td>0,37<\/td><td>0,393<\/td><td>215<\/td><td>4,3<\/td><td>7,45<\/td><td>6,7<\/td><td>0,073%<\/td><td>0,792<\/td><td>27,4<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>3 150<\/td><td>240<\/td><td>0,35<\/td><td>0,277<\/td><td>265<\/td><td>3,79<\/td><td>9,18<\/td><td>8,26<\/td><td>0,064%<\/td><td>0,905<\/td><td>31,3<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>4 275<\/td><td>260<\/td><td>0,33<\/td><td>0,21<\/td><td>319<\/td><td>3,36<\/td><td>11,05<\/td><td>9,95<\/td><td>0,058%<\/td><td>0,98<\/td><td>34<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>5 400<\/td><td>280<\/td><td>0,32<\/td><td>0,164<\/td><td>371<\/td><td>3,09<\/td><td>12,85<\/td><td>11,57<\/td><td>0,053%<\/td><td>1,056<\/td><td>36,6<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>6 750<\/td><td>310<\/td><td>0,31<\/td><td>0,132<\/td><td>428<\/td><td>2,85<\/td><td>14,83<\/td><td>13,34<\/td><td>0,049%<\/td><td>1,169<\/td><td>40,5<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>10 800<\/td><td>360<\/td><td>0,29<\/td><td>0,0817<\/td><td>574<\/td><td>2,39<\/td><td>19,88<\/td><td>17,9<\/td><td>0,041%<\/td><td>1,357<\/td><td>47<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>8 325<\/td><td>340<\/td><td>0,3<\/td><td>0,108<\/td><td>488<\/td><td>2,64<\/td><td>16,9<\/td><td>15,21<\/td><td>0,046%<\/td><td>1,282<\/td><td>44,4<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>9. \u0422\u044f\u0433\u0430, \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430 \u0438 self-weight<\/h2>\n<div class=\"formula\">Fmax = 15 \u041d\/\u043c\u043c\u00b2 \u00d7 3 \u00d7 S\nR\u221225 \u2248 R20 \u00d7 [1 + 0,00393 \u00d7 (\u221225 \u2212 20)]\nL\u0442\u0435\u043e\u0440 = Fmax \/ (m \u00d7 g)\n\n\u221225 \u00b0C \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a flexible installation.\n\u221240 \u00b0C \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u0434\u043b\u044f fixed installation.<\/div>\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>\u0420\u0430\u0441\u0447\u0435\u0442 F<\/th><th>\u0422\u0430\u0431\u043b\u0438\u0447\u043d\u043e\u0435 F<\/th><th>\u0421\u0430\u043c\u043e\u0432\u0435\u0441 100\u043c<\/th><th>L\u0442\u0435\u043e\u0440 air<\/th><th>R20<\/th><th>R\u221225<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>1 125 \u041d<\/td><td>1 125 \u041d<\/td><td>4267 \u041d<\/td><td>26,4 \u043c<\/td><td>0,795<\/td><td>0,6544<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>1 125 \u041d<\/td><td>1 125 \u041d<\/td><td>4493 \u041d<\/td><td>25 \u043c<\/td><td>0,795<\/td><td>0,6544<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>1 575 \u041d<\/td><td>1 575 \u041d<\/td><td>4846 \u041d<\/td><td>32,5 \u043c<\/td><td>0,565<\/td><td>0,4651<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>1 575 \u041d<\/td><td>1 575 \u041d<\/td><td>4836 \u041d<\/td><td>32,6 \u043c<\/td><td>0,565<\/td><td>0,4651<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>2 250 \u041d<\/td><td>2 250 \u041d<\/td><td>568 \u041d<\/td><td>39,6 \u043c<\/td><td>0,393<\/td><td>0,3235<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>3 150 \u041d<\/td><td>3 150 \u041d<\/td><td>6955 \u041d<\/td><td>45,3 \u043c<\/td><td>0,277<\/td><td>0,228<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>4 275 \u041d<\/td><td>4 275 \u041d<\/td><td>8123 \u041d<\/td><td>52,6 \u043c<\/td><td>0,21<\/td><td>0,1729<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>5 400 \u041d<\/td><td>5 400 \u041d<\/td><td>981 \u041d<\/td><td>55 \u043c<\/td><td>0,164<\/td><td>0,135<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>6 750 \u041d<\/td><td>6 750 \u041d<\/td><td>11183 \u041d<\/td><td>60,4 \u043c<\/td><td>0,132<\/td><td>0,1087<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>10 800 \u041d<\/td><td>10 800 \u041d<\/td><td>14715 \u041d<\/td><td>73,4 \u043c<\/td><td>0,0817<\/td><td>0,0673<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>8 325 \u041d<\/td><td>8 325 \u041d<\/td><td>13047 \u041d<\/td><td>63,8 \u043c<\/td><td>0,108<\/td><td>0,0889<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>10. \u041f\u0440\u0438\u0431\u043b\u0438\u0436\u0435\u043d\u043d\u0430\u044f buoyancy-\u043e\u0446\u0435\u043d\u043a\u0430<\/h2>\n<div class=\"formula\">Displaced mass \u2248 \u03c1sea \u00d7 \u03c0 \u00d7 Dmax\u00b2 \/ 4\nApparent mass \u2248 cable mass \u2212 displaced mass\n\n\u0420\u0430\u0441\u0447\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0433\u043b\u0430\u0434\u043a\u0438\u0439 \u0446\u0438\u043b\u0438\u043d\u0434\u0440 \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u043e\u043c Dmax.\n\u041e\u043d \u043d\u0435 \u0437\u0430\u043c\u0435\u043d\u044f\u0435\u0442 catenary analysis, current drag \u0438 actual underwater geometry.<\/div>\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>\u041c\u0430\u0441\u0441\u0430 air<\/th><th>Displaced sea water<\/th><th>Apparent mass<\/th><th>Reduction<\/th><th>L\u0442\u0435\u043e\u0440 air<\/th><th>L\u0442\u0435\u043e\u0440 sea<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>4,35<\/td><td>2,83<\/td><td>1,52<\/td><td>65,1%<\/td><td>26,4 \u043c<\/td><td>75,5 \u043c<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>4,58<\/td><td>2,83<\/td><td>1,75<\/td><td>61,8%<\/td><td>25 \u043c<\/td><td>65,6 \u043c<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>4,94<\/td><td>2,96<\/td><td>1,98<\/td><td>59,8%<\/td><td>32,5 \u043c<\/td><td>80,9 \u043c<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>4,93<\/td><td>3<\/td><td>1,93<\/td><td>60,8%<\/td><td>32,6 \u043c<\/td><td>83 \u043c<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>5,79<\/td><td>3,29<\/td><td>2,5<\/td><td>56,8%<\/td><td>39,6 \u043c<\/td><td>91,6 \u043c<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>7,09<\/td><td>4,07<\/td><td>3,02<\/td><td>57,4%<\/td><td>45,3 \u043c<\/td><td>106,3 \u043c<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>8,28<\/td><td>4,53<\/td><td>3,75<\/td><td>54,7%<\/td><td>52,6 \u043c<\/td><td>116,2 \u043c<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>10<\/td><td>5,39<\/td><td>4,61<\/td><td>53,9%<\/td><td>55 \u043c<\/td><td>119,3 \u043c<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>11,4<\/td><td>6,14<\/td><td>5,26<\/td><td>53,8%<\/td><td>60,4 \u043c<\/td><td>130,7 \u043c<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>15<\/td><td>8,29<\/td><td>6,71<\/td><td>55,3%<\/td><td>73,4 \u043c<\/td><td>164,2 \u043c<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>13,3<\/td><td>6,95<\/td><td>6,35<\/td><td>52,2%<\/td><td>63,8 \u043c<\/td><td>133,6 \u043c<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>11. \u0411\u0430\u0440\u0430\u0431\u0430\u043d\u043d\u0430\u044f \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u044f<\/h2>\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>Dmax<\/th><th>6D<\/th><th>10D<\/th><th>\u041c\u0438\u043d. \u0434\u0438\u0430\u043c\u0435\u0442\u0440 \u043f\u043e \u043e\u0441\u0438<\/th><th>\u041c\u0430\u0441\u0441\u0430<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>59,3 \u043c\u043c<\/td><td>355,8 \u043c\u043c<\/td><td>593 \u043c\u043c<\/td><td>1186 \u043c\u043c<\/td><td>4,35 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>59,3 \u043c\u043c<\/td><td>355,8 \u043c\u043c<\/td><td>593 \u043c\u043c<\/td><td>1186 \u043c\u043c<\/td><td>4,58 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>60,6 \u043c\u043c<\/td><td>363,6 \u043c\u043c<\/td><td>606 \u043c\u043c<\/td><td>1212 \u043c\u043c<\/td><td>4,94 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>61 \u043c\u043c<\/td><td>366 \u043c\u043c<\/td><td>610 \u043c\u043c<\/td><td>1220 \u043c\u043c<\/td><td>4,93 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>63,9 \u043c\u043c<\/td><td>383,4 \u043c\u043c<\/td><td>639 \u043c\u043c<\/td><td>1278 \u043c\u043c<\/td><td>5,79 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>71,1 \u043c\u043c<\/td><td>426,6 \u043c\u043c<\/td><td>711 \u043c\u043c<\/td><td>1422 \u043c\u043c<\/td><td>7,09 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>75 \u043c\u043c<\/td><td>450 \u043c\u043c<\/td><td>750 \u043c\u043c<\/td><td>1500 \u043c\u043c<\/td><td>8,28 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>81,8 \u043c\u043c<\/td><td>490,8 \u043c\u043c<\/td><td>818 \u043c\u043c<\/td><td>1636 \u043c\u043c<\/td><td>10 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>87,3 \u043c\u043c<\/td><td>523,8 \u043c\u043c<\/td><td>873 \u043c\u043c<\/td><td>1746 \u043c\u043c<\/td><td>11,4 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>101,5 \u043c\u043c<\/td><td>609 \u043c\u043c<\/td><td>1015 \u043c\u043c<\/td><td>2030 \u043c\u043c<\/td><td>15 \u043a\u0433\/\u043c<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>92,9 \u043c\u043c<\/td><td>557,4 \u043c\u043c<\/td><td>929 \u043c\u043c<\/td><td>1858 \u043c\u043c<\/td><td>13,3 \u043a\u0433\/\u043c<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>12. \u0411\u044b\u0441\u0442\u0440\u044b\u0439 \u0432\u044b\u0431\u043e\u0440<\/h2>\n<div class=\"table-scroll\"><table><thead><tr><th>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f<\/th><th>\u0422\u043e\u043a<\/th><th>\u041c\u0412\u0442<\/th><th>Dmax<\/th><th>\u041c\u0430\u0441\u0441\u0430<\/th><th>\u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435<\/th><\/tr><\/thead><tbody><tr><td>3&#215;25+3&#215;25\/3E<\/td><td>139 \u0410<\/td><td>4,33 \u041c\u0412\u0442<\/td><td>59,3 \u043c\u043c<\/td><td>4 350 \u043a\u0433\/\u043a\u043c<\/td><td>\u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u0430\u044f 20-\u043a\u0412 underwater connection \u0434\u043b\u044f pumps \u0438 small dredging systems<\/td><\/tr><tr><td>3&#215;25+3&#215;16\/3E<\/td><td>139 \u0410<\/td><td>4,33 \u041c\u0412\u0442<\/td><td>59,3 \u043c\u043c<\/td><td>4 580 \u043a\u0433\/\u043a\u043c<\/td><td>\u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u0430\u044f 20-\u043a\u0412 underwater connection \u0434\u043b\u044f pumps \u0438 small dredging systems<\/td><\/tr><tr><td>3&#215;35+3&#215;16\/3E<\/td><td>172 \u0410<\/td><td>5,36 \u041c\u0412\u0442<\/td><td>60,6 \u043c\u043c<\/td><td>4 940 \u043a\u0433\/\u043a\u043c<\/td><td>\u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u0430\u044f 20-\u043a\u0412 underwater connection \u0434\u043b\u044f pumps \u0438 small dredging systems<\/td><\/tr><tr><td>3&#215;35+3&#215;25\/3E<\/td><td>172 \u0410<\/td><td>5,36 \u041c\u0412\u0442<\/td><td>61 \u043c\u043c<\/td><td>4 930 \u043a\u0433\/\u043a\u043c<\/td><td>\u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u0430\u044f 20-\u043a\u0412 underwater connection \u0434\u043b\u044f pumps \u0438 small dredging systems<\/td><\/tr><tr><td>3&#215;50+3&#215;25\/3E<\/td><td>215 \u0410<\/td><td>6,7 \u041c\u0412\u0442<\/td><td>63,9 \u043c\u043c<\/td><td>5 790 \u043a\u0433\/\u043a\u043c<\/td><td>\u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u0430\u044f 20-\u043a\u0412 underwater connection \u0434\u043b\u044f pumps \u0438 small dredging systems<\/td><\/tr><tr><td>3&#215;70+3&#215;35\/3E<\/td><td>265 \u0410<\/td><td>8,26 \u041c\u0412\u0442<\/td><td>71,1 \u043c\u043c<\/td><td>7 090 \u043a\u0433\/\u043a\u043c<\/td><td>dredger, floating dock \u0438\u043b\u0438 pump system \u0441\u0440\u0435\u0434\u043d\u0435\u0439 \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u0438<\/td><\/tr><tr><td>3&#215;95+3&#215;50\/3E<\/td><td>319 \u0410<\/td><td>9,95 \u041c\u0412\u0442<\/td><td>75 \u043c\u043c<\/td><td>8 280 \u043a\u0433\/\u043a\u043c<\/td><td>dredger, floating dock \u0438\u043b\u0438 pump system \u0441\u0440\u0435\u0434\u043d\u0435\u0439 \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u0438<\/td><\/tr><tr><td>3&#215;120+3&#215;70\/3E<\/td><td>371 \u0410<\/td><td>11,57 \u041c\u0412\u0442<\/td><td>81,8 \u043c\u043c<\/td><td>10 000 \u043a\u0433\/\u043a\u043c<\/td><td>\u0432\u044b\u0441\u043e\u043a\u043e\u043c\u043e\u0449\u043d\u044b\u0439 20-\u043a\u0412 underwater feeder \u0434\u043b\u044f dredging \u0438 floating infrastructure<\/td><\/tr><tr><td>3&#215;150+3&#215;70\/3E<\/td><td>428 \u0410<\/td><td>13,34 \u041c\u0412\u0442<\/td><td>87,3 \u043c\u043c<\/td><td>11 400 \u043a\u0433\/\u043a\u043c<\/td><td>\u0432\u044b\u0441\u043e\u043a\u043e\u043c\u043e\u0449\u043d\u044b\u0439 20-\u043a\u0412 underwater feeder \u0434\u043b\u044f dredging \u0438 floating infrastructure<\/td><\/tr><tr><td>3&#215;240+3&#215;120\/3E+3&#215;2,5ST<\/td><td>574 \u0410<\/td><td>17,9 \u041c\u0412\u0442<\/td><td>101,5 \u043c\u043c<\/td><td>15 000 \u043a\u0433\/\u043a\u043c<\/td><td>\u0432\u044b\u0441\u043e\u043a\u043e\u043c\u043e\u0449\u043d\u044b\u0439 20-\u043a\u0412 underwater feeder \u0434\u043b\u044f dredging \u0438 floating infrastructure<\/td><\/tr><tr><td>3&#215;185+3&#215;95\/3E<\/td><td>488 \u0410<\/td><td>15,21 \u041c\u0412\u0442<\/td><td>92,9 \u043c\u043c<\/td><td>13 300 \u043a\u0433\/\u043a\u043c<\/td><td>\u0432\u044b\u0441\u043e\u043a\u043e\u043c\u043e\u0449\u043d\u044b\u0439 20-\u043a\u0412 underwater feeder \u0434\u043b\u044f dredging \u0438 floating infrastructure<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>13. Failure modes<\/h2>\n<div class=\"fmea-grid\">\n<div class=\"fmea\"><h4>Water ingress<\/h4><p>Damage to CPE\/EPR \u2192 moisture migration and insulation degradation.<\/p><\/div>\n<div class=\"fmea\"><h4>Pressure-seal failure<\/h4><p>Joint not depth-rated \u2192 leakage at termination.<\/p><\/div>\n<div class=\"fmea\"><h4>Concentric PE discontinuity<\/h4><p>Cutback damage \u2192 loss of protective-earth continuity.<\/p><\/div>\n<div class=\"fmea\"><h4>Salt-water corrosion<\/h4><p>Exposed accessory metal \u2192 progressive resistance increase.<\/p><\/div>\n<div class=\"fmea\"><h4>Over-twist<\/h4><p>More than \u00b125\u00b0\/\u043c \u2192 phase and PE fatigue.<\/p><\/div>\n<div class=\"fmea\"><h4>3&#215;2,5ST misinterpretation<\/h4><p>Assuming an unsupported control function \u2192 wrong termination or protection logic.<\/p><\/div>\n<\/div>\n\n<h2>14. \u041f\u0440\u0438\u0435\u043c\u043a\u0430<\/h2>\n<ul>\n<li>\u041f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c PROTOLON (ST)3E, SAP, external code \u0438 12\/20 (24) \u043a\u0412 marking.<\/li>\n<li>\u041f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c 29-\u043a\u0412 test documentation.<\/li>\n<li>\u0418\u0437\u043c\u0435\u0440\u0438\u0442\u044c resistance \u0444\u0430\u0437 \u0438 \u0432\u0441\u0435\u0445 \u0442\u0440\u0435\u0445 concentric PE systems.<\/li>\n<li>\u041f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c waterproof EPR inner sheath \u0438 CM\/CPE outer sheath.<\/li>\n<li>\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0434\u0438\u0442\u044c 12\/20-\u043a\u0412 stress-control system.<\/li>\n<li>\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0434\u0438\u0442\u044c depth rating joint, gland \u0438 termination.<\/li>\n<li>\u041f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c 6D fixed, 10D flexible, \u00b125\u00b0\/\u043c \u0438 15 \u041d\/\u043c\u043c\u00b2.<\/li>\n<li>\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0434\u0438\u0442\u044c compatibility \u0441 sewage, salt water \u0438\u043b\u0438 brackish water.<\/li>\n<li>\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0434\u0438\u0442\u044c 500 \u043c requirement \u0434\u043b\u044f \u0432\u0441\u0435\u0439 assembly.<\/li>\n<li>\u0414\u043b\u044f 240 \u043c\u043c\u00b2 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c approved drawing \u0434\u043b\u044f 3&#215;2,5ST \u0438 \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0434\u0438\u0442\u044c \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0439 SAP field.<\/li>\n<\/ul>\n\n<h2>15. \u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f<\/h2>\n<div class=\"warn\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d \u0434\u043b\u044f \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u043e\u0433\u043e \u0432\u044b\u0431\u043e\u0440\u0430 \u0438 \u043d\u0435 \u0437\u0430\u043c\u0435\u043d\u044f\u0435\u0442 approved underwater drawing, pressure qualification, 12\/20-\u043a\u0412 termination design, corrosion assessment \u0438 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u0439 \u043f\u0430\u0440\u0442\u0438\u0438.<\/div>\n<\/div>\n\n<footer><div class=\"container\">\n<h4>Feichun Cable \u2014 \u043f\u043e\u0434\u0431\u043e\u0440 PROTOLON (ST)3E NTSCGEWOEU 12\/20 \u043a\u0412<\/h4>\n<div class=\"contact\"><div><strong>\u0422\u0435\u043b\u0435\u0444\u043e\u043d:<\/strong><br><a href=\"tel:+8613855123218\">+86 13855123218<\/a><\/div><div><strong>\u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u043e\u0447\u0442\u0430:<\/strong><br><a href=\"mailto:Tech@feichuncables.com\">Tech@feichuncables.com<\/a><\/div><\/div>\n<p class=\"small\">Feichun Cable \u043d\u0435 \u0430\u0444\u0444\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d \u0441 \u0432\u043b\u0430\u0434\u0435\u043b\u044c\u0446\u0430\u043c\u0438 \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 PROTOLON, TENAX-PUR, TENAX-SAS \u0438\u043b\u0438 NTSCGEWOEU. \u041a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u0430\u044f \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430 \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0430\u0435\u0442\u0441\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u043c\u0438 \u043f\u0430\u0440\u0442\u0438\u0438.<\/p>\n<div>FEICHUN-PROTOLON-ST3E-20KV-RU \u00b7 28\/07\/2026<\/div>\n<\/div><\/footer><\/body><\/html>\n","protected":false},"excerpt":{"rendered":"\u0414\u043b\u044f dredgers, floating docks, pumps \u0438 \u0434\u0440\u0443\u0433\u043e\u0433\u043e \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0432 sewage, salt water \u0438 brackish water \u043d\u0430 \u0433\u043b\u0443\u0431\u0438\u043d\u0430\u0445 \u0434\u043e 500 \u043c.\n\u041a\u0430\u0436\u0434\u0430\u044f \u0433\u043b\u0430\u0432\u043d\u0430\u044f \u0436\u0438\u043b\u0430 \u0438\u043c\u0435\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 concentric protective-earth conductor, \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0432\u0435\u0440\u0445 insulation system. \u0412\u043e\u0434\u043e\u0437\u0430\u0449\u0438\u0442\u0430 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f special waterproof EPR inner sheath \u0438 CM\/CPE 5GM3 outer sheath.\n\u0421\u0442\u0440\u043e\u043a\u0430 240 \u043c\u043c\u00b2 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0437\u0430\u043f\u0438\u0441\u044c 3&#215;2,5ST. \u0415\u0435 \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u0438 electrical function \u0432 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0435 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0438 \u0442\u0440\u0435\u0431\u0443\u044e\u0442 approved drawing.","protected":false},"author":1,"featured_media":24632,"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-24631","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\/24631","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=24631"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/24631\/revisions"}],"predecessor-version":[{"id":24638,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/24631\/revisions\/24638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/24632"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=24631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=24631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=24631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}