{"id":25167,"date":"2026-08-03T17:25:20","date_gmt":"2026-08-03T09:25:20","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=25167"},"modified":"2026-08-03T17:25:25","modified_gmt":"2026-08-03T09:25:25","slug":"n2xy-j-0-6-1-kv-xlpe-pvc-power-cable-engineering-guide","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/n2xy-j-0-6-1-kv-xlpe-pvc-power-cable-engineering-guide\/","title":{"rendered":"N2XY-J \u2014 0.6\/1 kV XLPE\/PVC Power Cable Engineering Guide"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n\n\n\n\n\nN2XY-J 0.6\/1 kV Cable | Feichun Engineering Guide and Complete Reference Matrix<\/title>\n<meta name=\"description\" content=\"Professional English engineering guide to N2XY-J 0.6\/1 kV Cu\/XLPE\/PVC power cables: designation, construction, complete published reference matrix, bending, installation, selection and verification.\">\n<meta name=\"keywords\" content=\"N2XY-J cable, N2XY-J 0.6\/1 kV, XLPE PVC power cable, Cu XLPE PVC, low voltage distribution cable, green yellow PE cable, IEC 60502-1, DIN VDE 0276-603\">\n<style>\n:root{--bg:#041018;--p:#0b202b;--p2:#123443;--ink:#f4f9fb;--muted:#adc4ce;--line:#315b6f;--c:#55dff7;--g:#62df9c;--s:#e8c37b;--r:#ff777f;--v:#aa9bff;--source:#caedff}\n*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px Arial,Helvetica,sans-serif;line-height:1.68}.wrap{max-width:1840px;margin:auto;padding:0 28px}a{color:var(--c);text-decoration:none}a:hover{text-decoration:underline}.hero{padding:70px 0;background:radial-gradient(circle at 8% 5%,rgba(85,223,247,.22),transparent 34%),radial-gradient(circle at 92% 8%,rgba(170,155,255,.15),transparent 34%),linear-gradient(135deg,#041018,#0b4056)}h1{font-size:48px;line-height:1.12;max-width:1250px}h2{margin-top:55px;border-left:7px solid var(--c);padding-left:15px;line-height:1.25}h3{color:var(--c)}.lead{font-size:21px;max-width:1350px}.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 14px;font-weight:bold}.cards,.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:15px;margin:22px 0}.card,.box,.note,.warn{background:var(--p);border:1px solid var(--line);border-radius:10px;padding:18px}.card{border-top:5px solid var(--c)}.value{font-size:30px;color:var(--c);font-weight:bold}.note{border-left:7px solid var(--c)}.warn{border-left:7px solid var(--r);margin:13px 0}.good{border-left:7px solid var(--g)}.toc{background:var(--p);border:1px solid var(--line);padding:20px;border-left:7px solid var(--c)}.toc ol{columns:2}.scroll{overflow:auto}table{width:100%;border-collapse:collapse;background:#071821;min-width:1150px}th,td{border:1px solid var(--line);padding:8px 9px;vertical-align:top}th{background:var(--p2);color:#f4f9fb}td.key{color:var(--c);font-weight:bold}td.source{color:var(--source)}td.derived{background:#1d4b67;color:#caedff;font-weight:bold}details{background:#071821;border:1px solid var(--line);margin:13px 0}summary{padding:15px;color:var(--c);font-weight:bold;cursor:pointer}.formula{white-space:pre-line;background:#071821;border:1px solid var(--line);padding:18px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.svg{border:1px solid var(--line);padding:10px;background:#071821;margin:22px 0}.svg svg{width:100%;height:auto;display:block}.small{font-size:12px;color:#91a9b4}.contact{display:grid;grid-template-columns:1fr 1fr;gap:12px}.contact div{background:#071821;border:1px solid var(--line);padding:15px}footer{margin-top:50px;background:#02080c;padding:34px 0}@media(max-width:800px){h1{font-size:31px}.toc ol{columns:1}.contact{grid-template-columns:1fr}}\n<\/style>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"TechArticle\",\"headline\":\"N2XY-J 0.6\/1 kV Cable Engineering Guide\",\"description\":\"Engineering guide with the complete published N2XY-J\/N2XY-O reference matrix, construction, selection and installation controls.\",\"author\":{\"@type\":\"Organization\",\"name\":\"Feichun Cable\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"Feichun Cable\"}}<\/script>\n<\/head>\n<body>\n<section class=\"hero\"><div class=\"wrap\"><div class=\"badges\"><span>N2XY-J<\/span><span>0.6\/1 kV<\/span><span>Cu \/ XLPE \/ PVC<\/span><span>PE included<\/span><span>IEC 60502<\/span><span>Fixed distribution<\/span><\/div><h1>N2XY-J \u2014 0.6\/1 kV XLPE\/PVC Power Cable Engineering Guide<\/h1><p class=\"lead\">A technical English guide for engineers specifying N2XY-J power distribution cables for underground routes, cable ducts, concrete, outdoor plant, indoor switchboards, power stations and industrial networks. The article decodes the designation, reconstructs the physical cable layers, preserves the complete published reference matrix and separates reference, derived and project-confirmation values.<\/p><div class=\"meta\"><span>22 published reference rows<\/span><span>1 x 16\u2013400 mm\u00b2<\/span><span>4 x 16\u2013240 mm\u00b2<\/span><span>90\u00b0C conductor<\/span><span>250\u00b0C short circuit<\/span><span>15D \/ 12D minimum radius<\/span><\/div><\/div><\/section>\n<main class=\"wrap\">\n<div class=\"cards\"><div class=\"card\"><div>Rated voltage U<sub>0<\/sub>\/U<\/div><div class=\"value\">0.6\/1 kV<\/div><\/div><div class=\"card\"><div>Conductor operating temperature<\/div><div class=\"value\">90\u00b0C<\/div><\/div><div class=\"card\"><div>Short-circuit temperature<\/div><div class=\"value\">250\u00b0C<\/div><div>maximum 5 s in reference sheet<\/div><\/div><div class=\"card\"><div>Minimum bending radius<\/div><div class=\"value\">15D \/ 12D<\/div><div>single-core \/ multicore<\/div><\/div><\/div>\n<div class=\"toc\"><h3>Contents<\/h3><ol><li>Engineering position<\/li><li>Designation decoding<\/li><li>Application architecture<\/li><li>Multicore cross-section<\/li><li>Single-core cross-section<\/li><li>Reference construction<\/li><li>Complete matrix<\/li><li>Derived handling values<\/li><li>Electrical engineering<\/li><li>Selection comparison<\/li><li>Installation and acceptance<\/li><li>FMEA<\/li><li>Certification scope<\/li><li>Source map<\/li><\/ol><\/div>\n\n<h2>1. Engineering position: where N2XY-J belongs<\/h2>\n<div class=\"note\"><b>N2XY-J is a fixed-installation low-voltage distribution cable.<\/b> Its Cu\/XLPE\/PVC architecture is appropriate where the cable is routed in soil, water, concrete, buildings, ducts, industrial facilities and switchgear systems, provided the installation does not expose it to mechanical damage beyond the design basis. It is not automatically a drag-chain, festoon, vertical-reeling, mining reeling or torsion-rated cable.<\/div>\n<div class=\"grid\"><div class=\"box\"><b>Use N2XY-J when<\/b><br>The feeder is stationary or only handled during installation, the route can be supported or protected, and a protective conductor is required in the cable construction.<\/div><div class=\"box\"><b>Do not substitute it blindly when<\/b><br>The cable repeatedly reels, reverses, twists, runs over rollers, enters a drag chain or experiences impact, crushing or continuous axial tension.<\/div><div class=\"box\"><b>What the J suffix controls<\/b><br>In the reference family, J denotes the version with a green\/yellow protective conductor; O denotes the corresponding version without that protective conductor. The exact order designation must be confirmed for the conductor arrangement.<\/div><div class=\"box\"><b>Why XLPE matters<\/b><br>The 90\u00b0C conductor limit permits a higher thermal operating envelope than PVC-insulated power cables, but ampacity remains installation-specific and must be calculated for the route.<\/div><\/div>\n\n<h2>2. N2XY-J designation decoding<\/h2>\n<div class=\"scroll\"><table><thead><tr><th>Code element<\/th><th>Engineering interpretation<\/th><th>Design consequence<\/th><th>Source status<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">N<\/td><td>German\/European power-cable designation family<\/td><td>Use the complete type designation and applicable national marking; do not select by the first letter alone.<\/td><td class=\"source\">Designation practice<\/td><\/tr><tr><td class=\"key\">2X<\/td><td>Cross-linked polyethylene insulation<\/td><td>Higher conductor operating temperature than PVC insulation; termination must be compatible with XLPE insulation.<\/td><td class=\"source\">Reference construction<\/td><\/tr><tr><td class=\"key\">Y<\/td><td>PVC outer sheath<\/td><td>Robust general-purpose oversheath, but not a low-smoke halogen-free sheath.<\/td><td class=\"source\">Reference construction<\/td><\/tr><tr><td class=\"key\">J<\/td><td>Protective conductor included<\/td><td>Green\/yellow PE function must be bonded, tested and sized for the installation fault-current case.<\/td><td class=\"source\">Reference datasheet note<\/td><\/tr><tr><td class=\"key\">O<\/td><td>Protective conductor omitted<\/td><td>Shown only as the paired comparison family; it is not the requested N2XY-J variant.<\/td><td class=\"source\">Reference datasheet note<\/td><\/tr><tr><td class=\"key\">re \/ rm \/ sm<\/td><td>Round solid \/ round stranded \/ sector stranded conductor<\/td><td>Conductor form changes bending behaviour, outer diameter, termination preparation and cable weight.<\/td><td class=\"source\">Reference matrix<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>3. Application architecture<\/h2><div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1800 900\" role=\"img\" aria-label=\"N2XY-J fixed power distribution applications\">\n<defs><marker id=\"arrow-app\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker><linearGradient id=\"ground\" x1=\"0\" x2=\"0\" y1=\"0\" y2=\"1\"><stop stop-color=\"#1d3b45\"\/><stop offset=\"1\" stop-color=\"#071821\"\/><\/linearGradient><\/defs>\n<rect width=\"1800\" height=\"900\" fill=\"#06131b\"\/><rect y=\"610\" width=\"1800\" height=\"290\" fill=\"url(#ground)\"\/><path d=\"M0 610 H1800\" stroke=\"#55747d\" stroke-width=\"4\"\/>\n<text x=\"55\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"34\" font-weight=\"700\">N2XY-J fixed-installation power distribution map<\/text>\n<text x=\"55\" y=\"105\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"18\">XLPE\/PVC low-voltage feeder: underground, ducts, concrete, indoor switchgear and industrial plant distribution.<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <rect x=\"80\" y=\"175\" width=\"270\" height=\"280\" rx=\"16\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"3\"\/><path d=\"M125 350 V240 H300 V350\" fill=\"none\" stroke=\"#879ba4\" stroke-width=\"12\"\/><path d=\"M145 350 H280\" stroke=\"#879ba4\" stroke-width=\"12\"\/><circle cx=\"212\" cy=\"230\" r=\"35\" fill=\"#e8c37b\"\/><text x=\"112\" y=\"405\" fill=\"#55dff7\" font-size=\"23\" font-weight=\"700\">Utility \/ substation<\/text><text x=\"112\" y=\"438\" font-size=\"17\">0.6\/1 kV outgoing feeder<\/text>\n <rect x=\"450\" y=\"175\" width=\"270\" height=\"280\" rx=\"16\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"3\"\/><rect x=\"515\" y=\"235\" width=\"140\" height=\"130\" fill=\"#263941\" stroke=\"#a6c2c7\" stroke-width=\"5\"\/><circle cx=\"550\" cy=\"270\" r=\"10\" fill=\"#62df9c\"\/><circle cx=\"585\" cy=\"270\" r=\"10\" fill=\"#ff777f\"\/><circle cx=\"620\" cy=\"270\" r=\"10\" fill=\"#55dff7\"\/><path d=\"M540 320 H630\" stroke=\"#e8c37b\" stroke-width=\"8\"\/><text x=\"480\" y=\"405\" fill=\"#62df9c\" font-size=\"23\" font-weight=\"700\">LV switchboard<\/text><text x=\"480\" y=\"438\" font-size=\"17\">PE termination and protection<\/text>\n <rect x=\"820\" y=\"175\" width=\"270\" height=\"280\" rx=\"16\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"3\"\/><path d=\"M875 390 V285 H1035 V390\" fill=\"none\" stroke=\"#e8c37b\" stroke-width=\"9\"\/><path d=\"M895 315 H1015\" stroke=\"#55dff7\" stroke-width=\"8\"\/><path d=\"M895 345 H1015\" stroke=\"#62df9c\" stroke-width=\"8\"\/><text x=\"850\" y=\"405\" fill=\"#e8c37b\" font-size=\"23\" font-weight=\"700\">Cable duct \/ trench<\/text><text x=\"850\" y=\"438\" font-size=\"17\">Mechanical protection required<\/text>\n <rect x=\"1190\" y=\"175\" width=\"270\" height=\"280\" rx=\"16\" fill=\"#0b202b\" stroke=\"#aa9bff\" stroke-width=\"3\"\/><path d=\"M1235 370 L1280 245 H1380 L1425 370 Z\" fill=\"#3d525b\" stroke=\"#a6c2c7\" stroke-width=\"7\"\/><path d=\"M1300 350 V290 M1355 350 V290\" stroke=\"#55dff7\" stroke-width=\"8\"\/><text x=\"1220\" y=\"405\" fill=\"#aa9bff\" font-size=\"23\" font-weight=\"700\">Industrial load<\/text><text x=\"1220\" y=\"438\" font-size=\"17\">Motor \/ process equipment<\/text>\n <path d=\"M350 330 H440 M720 330 H810 M1090 330 H1180\" stroke=\"#dcebf0\" stroke-width=\"5\" marker-end=\"url(#arrow-app)\"\/>\n <path d=\"M240 455 V710 H1320 V455\" fill=\"none\" stroke=\"#55dff7\" stroke-width=\"13\"\/><path d=\"M240 455 V710 H1320 V455\" fill=\"none\" stroke=\"#0a1820\" stroke-width=\"5\" stroke-dasharray=\"18 16\"\/>\n <text x=\"155\" y=\"785\" fill=\"#55dff7\" font-size=\"24\" font-weight=\"700\">N2XY-J route: fixed, protected and mechanically supported<\/text><text x=\"155\" y=\"823\" fill=\"#dcebf0\" font-size=\"18\">Do not treat a standard N2XY-J feeder as a drag-chain or high-speed reeling cable without a dedicated motion design.<\/text>\n<\/g><\/svg><\/div>\n<div class=\"warn\"><b>Boundary condition:<\/b> the diagram shows fixed distribution service. If the route contains repeated movement, the correct engineering decision is normally to change to a cable family designed for that motion rather than to increase N2XY-J conductor size.<\/div>\n\n<h2>4. N2XY-J multicore cross-section<\/h2><div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1250\" role=\"img\" aria-label=\"N2XY-J multicore cable cross-section\">\n<defs><radialGradient id=\"mc-sheath\" cx=\"33%\" cy=\"25%\"><stop stop-color=\"#46535a\"\/><stop offset=\".72\" stop-color=\"#151d22\"\/><stop offset=\"1\" stop-color=\"#020507\"\/><\/radialGradient><radialGradient id=\"mc-xlpe\" cx=\"32%\" cy=\"26%\"><stop stop-color=\"#f5ead5\"\/><stop offset=\"1\" stop-color=\"#c9b58f\"\/><\/radialGradient><pattern id=\"mc-cu\" width=\"18\" height=\"18\" patternUnits=\"userSpaceOnUse\"><circle cx=\"4\" cy=\"4\" r=\"3.5\" fill=\"#d47a30\"\/><circle cx=\"13\" cy=\"4\" r=\"3.5\" fill=\"#e8a45f\"\/><circle cx=\"8.5\" cy=\"13\" r=\"3.5\" fill=\"#b85c1e\"\/><\/pattern><marker id=\"mc-a\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#deedf2\"\/><\/marker><\/defs>\n<rect width=\"1900\" height=\"1250\" fill=\"#06131b\"\/><text x=\"65\" y=\"70\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\" fill=\"#55dff7\">N2XY-J 4-core construction \u2014 physically separated material layers<\/text><text x=\"65\" y=\"110\" font-family=\"Arial\" font-size=\"18\" fill=\"#adc4ce\">Representative multicore geometry. The source matrix contains rm and sm conductor constructions; exact lay, filler and dimensions are product-specific.<\/text>\n<g transform=\"translate(625 670)\"><circle r=\"450\" fill=\"url(#mc-sheath)\" stroke=\"#71848e\" stroke-width=\"12\"\/><circle r=\"390\" fill=\"#2b3a40\" stroke=\"#6f828b\" stroke-width=\"7\"\/><circle cx=\"-150\" cy=\"-150\" r=\"145\" fill=\"url(#mc-xlpe)\" stroke=\"#f0d59e\" stroke-width=\"9\"\/><circle cx=\"150\" cy=\"-150\" r=\"145\" fill=\"url(#mc-xlpe)\" stroke=\"#f0d59e\" stroke-width=\"9\"\/><circle cx=\"-150\" cy=\"150\" r=\"145\" fill=\"url(#mc-xlpe)\" stroke=\"#f0d59e\" stroke-width=\"9\"\/><circle cx=\"150\" cy=\"150\" r=\"145\" fill=\"#e5ca72\" stroke=\"#fff0b8\" stroke-width=\"9\"\/><circle cx=\"-150\" cy=\"-150\" r=\"70\" fill=\"url(#mc-cu)\" stroke=\"#efb16e\" stroke-width=\"6\"\/><circle cx=\"150\" cy=\"-150\" r=\"70\" fill=\"url(#mc-cu)\" stroke=\"#efb16e\" stroke-width=\"6\"\/><circle cx=\"-150\" cy=\"150\" r=\"70\" fill=\"url(#mc-cu)\" stroke=\"#efb16e\" stroke-width=\"6\"\/><circle cx=\"150\" cy=\"150\" r=\"70\" fill=\"url(#mc-cu)\" stroke=\"#efb16e\" stroke-width=\"6\"\/><circle cx=\"150\" cy=\"150\" r=\"95\" fill=\"none\" stroke=\"#746323\" stroke-width=\"12\" stroke-dasharray=\"17 11\"\/><\/g>\n<g font-family=\"Arial\" fill=\"#eaf6fa\"><line x1=\"1000\" y1=\"360\" x2=\"1390\" y2=\"190\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#mc-a)\"\/><text x=\"1410\" y=\"185\" font-size=\"24\" font-weight=\"700\">1. Black PVC outer sheath<\/text><text x=\"1410\" y=\"218\" font-size=\"18\">DMV6\/DMP2 family in the reference sheet.<\/text><line x1=\"910\" y1=\"500\" x2=\"1390\" y2=\"350\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#mc-a)\"\/><text x=\"1410\" y=\"345\" font-size=\"24\" font-weight=\"700\">2. Concentric lay and fillers<\/text><text x=\"1410\" y=\"378\" font-size=\"18\">Geometry keeps the multicore bundle compact.<\/text><line x1=\"745\" y1=\"565\" x2=\"1390\" y2=\"510\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#mc-a)\"\/><text x=\"1410\" y=\"505\" font-size=\"24\" font-weight=\"700\" fill=\"#f0d59e\">3. XLPE insulation<\/text><text x=\"1410\" y=\"538\" font-size=\"18\">DIX3 compound reference; 90\u00b0C conductor operation.<\/text><line x1=\"625\" y1=\"670\" x2=\"180\" y2=\"290\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#mc-a)\"\/><text x=\"65\" y=\"205\" font-size=\"24\" font-weight=\"700\" fill=\"#e8a45f\">4. Bare copper conductors<\/text><text x=\"65\" y=\"238\" font-size=\"18\">re = round solid; rm = round stranded; sm = sector stranded.<\/text><line x1=\"775\" y1=\"820\" x2=\"1390\" y2=\"705\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#mc-a)\"\/><text x=\"1410\" y=\"700\" font-size=\"24\" font-weight=\"700\" fill=\"#fff0b8\">5. Green\/yellow protective conductor<\/text><text x=\"1410\" y=\"733\" font-size=\"18\">The defining J-versus-O functional distinction.<\/text><line x1=\"625\" y1=\"920\" x2=\"1390\" y2=\"900\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#mc-a)\"\/><text x=\"1410\" y=\"895\" font-size=\"24\" font-weight=\"700\" fill=\"#aabac1\">6. No screen or armour in this reference construction<\/text><text x=\"1410\" y=\"928\" font-size=\"18\">External mechanical protection must be designed in the installation.<\/text><\/g><\/svg><\/div>\n<p>The reference construction is an unarmoured Cu\/XLPE\/PVC cable: bare copper conductors, XLPE core insulation, concentric core assembly and a black PVC outer sheath. The diagram separates the green\/yellow protective-conductor function from the phase conductors. It is a technical reconstruction for explanation, not a manufacturing drawing; exact lay length, filler geometry, insulation thickness and sheath thickness must be taken from the released Feichun construction sheet.<\/p>\n\n<h2>5. N2XY-J single-core cross-section<\/h2><div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1100\" role=\"img\" aria-label=\"N2XY-J single-core cross-section\">\n<defs><radialGradient id=\"sc-sheath\" cx=\"32%\" cy=\"25%\"><stop stop-color=\"#4a565d\"\/><stop offset=\".72\" stop-color=\"#151d22\"\/><stop offset=\"1\" stop-color=\"#020507\"\/><\/radialGradient><radialGradient id=\"sc-xlpe\" cx=\"32%\" cy=\"25%\"><stop stop-color=\"#f5ead5\"\/><stop offset=\"1\" stop-color=\"#c8b38b\"\/><\/radialGradient><pattern id=\"sc-cu\" width=\"20\" height=\"20\" patternUnits=\"userSpaceOnUse\"><circle cx=\"5\" cy=\"5\" r=\"4\" fill=\"#d47a30\"\/><circle cx=\"15\" cy=\"5\" r=\"4\" fill=\"#e8a45f\"\/><circle cx=\"10\" cy=\"15\" r=\"4\" fill=\"#b85c1e\"\/><\/pattern><marker id=\"sc-a\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#deedf2\"\/><\/marker><\/defs>\n<rect width=\"1900\" height=\"1100\" fill=\"#06131b\"\/><text x=\"65\" y=\"70\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\" fill=\"#55dff7\">N2XY-J single-core construction \u2014 conductor, XLPE and PVC sheath<\/text><text x=\"65\" y=\"110\" font-family=\"Arial\" font-size=\"18\" fill=\"#adc4ce\">A single-core reference geometry is not a screened or armoured cable. Installation spacing, cleating and magnetic effects are part of the system design.<\/text>\n<g transform=\"translate(625 580)\"><circle r=\"390\" fill=\"url(#sc-sheath)\" stroke=\"#71848e\" stroke-width=\"13\"\/><circle r=\"305\" fill=\"url(#sc-xlpe)\" stroke=\"#f0d59e\" stroke-width=\"11\"\/><circle r=\"190\" fill=\"url(#sc-cu)\" stroke=\"#efb16e\" stroke-width=\"9\"\/><\/g>\n<g font-family=\"Arial\" fill=\"#eaf6fa\"><line x1=\"900\" y1=\"300\" x2=\"1370\" y2=\"180\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#sc-a)\"\/><text x=\"1390\" y=\"175\" font-size=\"24\" font-weight=\"700\">1. PVC oversheath<\/text><text x=\"1390\" y=\"208\" font-size=\"18\">Black, flame-retardant reference construction.<\/text><line x1=\"820\" y1=\"470\" x2=\"1370\" y2=\"360\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#sc-a)\"\/><text x=\"1390\" y=\"355\" font-size=\"24\" font-weight=\"700\" fill=\"#f0d59e\">2. Cross-linked polyethylene<\/text><text x=\"1390\" y=\"388\" font-size=\"18\">XLPE\/DIX3 insulation around the conductor.<\/text><line x1=\"625\" y1=\"580\" x2=\"155\" y2=\"315\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#sc-a)\"\/><text x=\"65\" y=\"250\" font-size=\"24\" font-weight=\"700\" fill=\"#e8a45f\">3. Bare Cu conductor<\/text><text x=\"65\" y=\"283\" font-size=\"18\">Class 1 or class 2 according to the published construction.<\/text><line x1=\"625\" y1=\"920\" x2=\"1370\" y2=\"650\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#sc-a)\"\/><text x=\"1390\" y=\"645\" font-size=\"24\" font-weight=\"700\">4. Single-core handling<\/text><text x=\"1390\" y=\"678\" font-size=\"18\">Minimum bending radius in the reference sheet: 15 \u00d7 cable diameter.<\/text><\/g><\/svg><\/div>\n<div class=\"note\">Single-core installations require additional system decisions: parallel conductors, phase spacing, cleat arrangement, magnetic-force control, thermal dissipation and the route’s short-circuit mechanical duty. The 15D value is a minimum bending rule from the reference sheet, not a complete parallel-cable installation design.<\/div>\n\n<h2>6. Reference construction and operating limits<\/h2>\n<div class=\"grid\"><div class=\"box\"><b>Conductor<\/b><br>Bare copper, class 1 or class 2 according to the construction; the matrix identifies round solid (re), round stranded (rm) and sector stranded (sm).<\/div><div class=\"box\"><b>Insulation<\/b><br>Cross-linked polyethylene, compound type DIX3 in the published reference sheet; maximum conductor operating temperature +90\u00b0C.<\/div><div class=\"box\"><b>Outer sheath<\/b><br>PVC, compound type DMV6\/DMP2 in the published reference sheet; black sheath; no armour or screen is listed in that construction.<\/div><div class=\"box\"><b>Electrical rating<\/b><br>U<sub>0<\/sub>\/U = 0.6\/1 kV; reference test voltage 4 kV; highest permissible AC system voltage is listed as 1.2 kV for three-phase systems.<\/div><div class=\"box\"><b>Thermal envelope<\/b><br>Fixed installation \u221240\u00b0C to +70\u00b0C; flexible handling \u22125\u00b0C to +50\u00b0C; +250\u00b0C short-circuit conductor temperature for a maximum short-circuit duration of 5 s.<\/div><div class=\"box\"><b>Mechanical envelope<\/b><br>Maximum permissible tensile stress by the reference pulling method: 50 N\/mm\u00b2; minimum radius 15D for single-core and 12D for multicore.<\/div><\/div>\n\n<h2>7. Complete published N2XY-J reference matrix<\/h2>\n<div class=\"warn\"><b>Data provenance:<\/b> the 22 rows below reproduce the complete dimensional matrix in the linked HELUKABEL N2XY-J\/N2XY-O reference sheet, dated 15 April 2015. J and O part numbers are retained to show the paired designation structure. These are published reference values, not silently asserted Feichun SAP codes, current prices or a project-specific Feichun release.<\/div>\n<div class=\"scroll\"><table><thead><tr><th>Construction \/ conductor<\/th><th>J part no.<\/th><th>O part no.<\/th><th>Family group<\/th><th>Outer \u00d8 approx. [mm]<\/th><th>Cu [kg\/km]<\/th><th>Mass [kg\/km]<\/th><th>Reference minimum radius<\/th><th>Data status<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">1 x 16 re<\/td><td class=\"source\">32850<\/td><td class=\"source\">32862<\/td><td class=\"source\">single-core<\/td><td class=\"source\">11.5<\/td><td class=\"source\">154.0<\/td><td class=\"source\">242.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 25 rm<\/td><td class=\"source\">32851<\/td><td class=\"source\">32863<\/td><td class=\"source\">single-core<\/td><td class=\"source\">12.5<\/td><td class=\"source\">240.0<\/td><td class=\"source\">362.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 35 rm<\/td><td class=\"source\">32852<\/td><td class=\"source\">32864<\/td><td class=\"source\">single-core<\/td><td class=\"source\">13.5<\/td><td class=\"source\">336.0<\/td><td class=\"source\">470.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 50 rm<\/td><td class=\"source\">32853<\/td><td class=\"source\">32865<\/td><td class=\"source\">single-core<\/td><td class=\"source\">15.5<\/td><td class=\"source\">480.0<\/td><td class=\"source\">620.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 70 rm<\/td><td class=\"source\">32854<\/td><td class=\"source\">32866<\/td><td class=\"source\">single-core<\/td><td class=\"source\">17.0<\/td><td class=\"source\">672.0<\/td><td class=\"source\">805.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 95 rm<\/td><td class=\"source\">32855<\/td><td class=\"source\">32867<\/td><td class=\"source\">single-core<\/td><td class=\"source\">19.0<\/td><td class=\"source\">912.0<\/td><td class=\"source\">1,108.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 120 rm<\/td><td class=\"source\">32856<\/td><td class=\"source\">32868<\/td><td class=\"source\">single-core<\/td><td class=\"source\">20.5<\/td><td class=\"source\">1,152.0<\/td><td class=\"source\">1,360.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 150 rm<\/td><td class=\"source\">32857<\/td><td class=\"source\">32869<\/td><td class=\"source\">single-core<\/td><td class=\"source\">23.0<\/td><td class=\"source\">1,440.0<\/td><td class=\"source\">1,670.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 185 rm<\/td><td class=\"source\">32858<\/td><td class=\"source\">32870<\/td><td class=\"source\">single-core<\/td><td class=\"source\">25.5<\/td><td class=\"source\">1,776.0<\/td><td class=\"source\">2,050.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 240 rm<\/td><td class=\"source\">32859<\/td><td class=\"source\">32871<\/td><td class=\"source\">single-core<\/td><td class=\"source\">28.5<\/td><td class=\"source\">2,304.0<\/td><td class=\"source\">2,635.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 300 rm<\/td><td class=\"source\">32860<\/td><td class=\"source\">32872<\/td><td class=\"source\">single-core<\/td><td class=\"source\">30.0<\/td><td class=\"source\">2,880.0<\/td><td class=\"source\">3,200.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">1 x 400 rm<\/td><td class=\"source\">32861<\/td><td class=\"source\">32873<\/td><td class=\"source\">single-core<\/td><td class=\"source\">34.0<\/td><td class=\"source\">3,840.0<\/td><td class=\"source\">4,150.0<\/td><td class=\"source\">15D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 16 rm<\/td><td class=\"source\">32874<\/td><td class=\"source\">32884<\/td><td class=\"source\">multicore<\/td><td class=\"source\">21.5<\/td><td class=\"source\">614.0<\/td><td class=\"source\">1,042.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 25 rm<\/td><td class=\"source\">32875<\/td><td class=\"source\">32885<\/td><td class=\"source\">multicore<\/td><td class=\"source\">26.0<\/td><td class=\"source\">960.0<\/td><td class=\"source\">1,640.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 35 rm<\/td><td class=\"source\">32876<\/td><td class=\"source\">32886<\/td><td class=\"source\">multicore<\/td><td class=\"source\">27.5<\/td><td class=\"source\">1,344.0<\/td><td class=\"source\">1,760.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 50 sm<\/td><td class=\"source\">32877<\/td><td class=\"source\">32887<\/td><td class=\"source\">multicore<\/td><td class=\"source\">30.0<\/td><td class=\"source\">1,920.0<\/td><td class=\"source\">2,350.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 70 sm<\/td><td class=\"source\">32878<\/td><td class=\"source\">32888<\/td><td class=\"source\">multicore<\/td><td class=\"source\">34.0<\/td><td class=\"source\">2,688.0<\/td><td class=\"source\">3,100.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 95 sm<\/td><td class=\"source\">32879<\/td><td class=\"source\">32889<\/td><td class=\"source\">multicore<\/td><td class=\"source\">39.0<\/td><td class=\"source\">3,648.0<\/td><td class=\"source\">4,250.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 120 sm<\/td><td class=\"source\">32880<\/td><td class=\"source\">32890<\/td><td class=\"source\">multicore<\/td><td class=\"source\">42.5<\/td><td class=\"source\">4,608.0<\/td><td class=\"source\">5,300.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 150 sm<\/td><td class=\"source\">32881<\/td><td class=\"source\">32891<\/td><td class=\"source\">multicore<\/td><td class=\"source\">47.5<\/td><td class=\"source\">5,760.0<\/td><td class=\"source\">6,400.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 185 sm<\/td><td class=\"source\">32882<\/td><td class=\"source\">32892<\/td><td class=\"source\">multicore<\/td><td class=\"source\">52.0<\/td><td class=\"source\">7,104.0<\/td><td class=\"source\">8,500.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><tr><td class=\"key\">4 x 240 sm<\/td><td class=\"source\">32883<\/td><td class=\"source\">32893<\/td><td class=\"source\">multicore<\/td><td class=\"source\">58.0<\/td><td class=\"source\">9,216.0<\/td><td class=\"source\">11,000.0<\/td><td class=\"source\">12D<\/td><td class=\"source\">published reference matrix<\/td><\/tr><\/tbody><\/table><\/div>\n<p class=\"small\">Commercial prices printed in the historical reference sheet are intentionally not reproduced: they are time-dependent, supplier-specific and not Feichun quotations. Dimensions, copper factor and mass are retained because they affect design, handling, logistics and mechanical support.<\/p>\n\n<h2>Feichun engineering design approach for N2XY-J<\/h2><div class=\"grid\"><div class=\"box\"><b>Controlled conductor geometry<\/b><br>Use re, rm or sm construction deliberately: conductor form affects termination, pulling behaviour, bending stiffness, outer diameter and the amount of copper that must be handled during installation.<\/div><div class=\"box\"><b>Thermal design with discipline<\/b><br>Use the XLPE 90\u00b0C capability as a design input, not as a shortcut around derating. Feichun engineering selection should close the loop between conductor temperature, joint temperature, enclosure heat and protective-device settings.<\/div><div class=\"box\"><b>PE-first safety logic<\/b><br>The J variant is selected when the protective-conductor function is required in the cable. Marking, continuity, bonding, fault-current capacity and disconnection time are treated as one protection chain.<\/div><div class=\"box\"><b>Application-matched upgrades<\/b><br>When the route becomes dynamic, screened, armoured, LSZH, mining or reel-driven, Feichun can move the project to the appropriate cable platform instead of overstating the capability of a standard fixed feeder.<\/div><\/div><div class=\"note\">The differentiator is controlled application engineering: preserve the N2XY-J electrical architecture where it fits, and change the construction when the mechanical or fire-safety boundary changes.<\/div>\n\n<h2>8. Derived handling values for engineering checks<\/h2>\n<div class=\"formula\">Single-core minimum radius \u2248 15 \u00d7 outside diameter\nMulticore minimum radius \u2248 12 \u00d7 outside diameter\n100 m cable mass = published mass [kg\/km] \u00d7 0.1\n100 m copper mass = published Cu factor [kg\/km] \u00d7 0.1\nVoltage drop: \u0394U = I \u00d7 R \u00d7 L for DC \/ single-phase two-wire approximation\nThree-phase voltage drop: \u0394U \u2248 \u221a3 \u00d7 I \u00d7 R \u00d7 L\nShort-circuit verification: check I\u00b2t, conductor temperature, PE fault path and protective-device clearing time\n\nDerived values are screening calculations. They do not replace the manufacturer\u2019s released construction drawing, VDE 0298-4 installation calculation or project short-circuit study.<\/div>\n<div class=\"scroll\"><table><thead><tr><th>Selected construction<\/th><th>Published outer \u00d8<\/th><th>Published radius rule<\/th><th>Derived minimum radius<\/th><th>Derived mass per 100 m<\/th><th>Derived copper per 100 m<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">1 x 120 rm<\/td><td class=\"source\">20.5 mm<\/td><td class=\"source\">15D<\/td><td class=\"derived\">307.5 mm<\/td><td class=\"derived\">136.0 kg<\/td><td class=\"derived\">115.2 kg<\/td><\/tr><tr><td class=\"key\">4 x 120 sm<\/td><td class=\"source\">42.5 mm<\/td><td class=\"source\">12D<\/td><td class=\"derived\">510.0 mm<\/td><td class=\"derived\">530.0 kg<\/td><td class=\"derived\">460.8 kg<\/td><\/tr><tr><td class=\"key\">4 x 240 sm<\/td><td class=\"source\">58.0 mm<\/td><td class=\"source\">12D<\/td><td class=\"derived\">696.0 mm<\/td><td class=\"derived\">1100.0 kg<\/td><td class=\"derived\">921.6 kg<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>9. Electrical engineering: current capacity and voltage drop<\/h2>\n<div class=\"grid\"><div class=\"box\"><b>Current capacity is not one fixed cable number<\/b><br>It depends on conductor size, conductor arrangement, ambient temperature, installation medium, soil thermal resistivity, grouping, burial depth, ventilation and permissible conductor temperature. The public reference sheet provides dimensional data but does not publish a universal ampacity table for every installation condition.<\/div><div class=\"box\"><b>XLPE does not remove derating<\/b><br>Although +90\u00b0C conductor operation is listed, the allowable continuous current must be limited by the weakest part of the system: insulation ageing, joints, glands, terminals, enclosure temperature or protective-device coordination.<\/div><div class=\"box\"><b>Voltage-drop control<\/b><br>Use the conductor resistance at the applicable temperature, route length and load power factor. For long feeders, check starting current and not only steady-state current.<\/div><div class=\"box\"><b>Protective conductor<\/b><br>The J core is a fault-current path, not merely a colour. Verify PE continuity, cross-section, prospective fault current, disconnection time and bonding at both ends.<\/div><\/div>\n<div class=\"note\">For a final design, calculate current capacity and voltage drop using the applicable local installation rules and the exact Feichun data sheet. Do not copy an ampacity from a different supplier, different conductor form or different installation method.<\/div>\n\n<h2>10. Selection comparison<\/h2>\n<div class=\"scroll\"><table><thead><tr><th>Requirement<\/th><th>N2XY-J<\/th><th>What the engineer must verify<\/th><th>Decision<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">Fixed underground \/ duct distribution<\/td><td>Strong fit for the reference application<\/td><td>Burial, water, soil heat, mechanical protection, joints and PE continuity<\/td><td class=\"source\">Suitable subject to calculation<\/td><\/tr><tr><td class=\"key\">Outdoor industrial feeder<\/td><td>PVC sheath and XLPE insulation provide a conventional LV distribution construction<\/td><td>UV\/weather exposure, support, impact risk, gland and terminal compatibility<\/td><td class=\"source\">Suitable subject to environment review<\/td><\/tr><tr><td class=\"key\">Fire \/ smoke restricted building<\/td><td>Standard PVC sheath is not automatically LSZH<\/td><td>Reaction-to-fire class, smoke, acidity and halogen requirements of the project<\/td><td class=\"warn\">Consider N2XH-J or another specified LSZH construction<\/td><\/tr><tr><td class=\"key\">Drag chain \/ continuous flexing<\/td><td>Not the default design basis<\/td><td>Cycle count, travel speed, torsion, bend radius and carrier geometry<\/td><td class=\"warn\">Select a dedicated chain cable<\/td><\/tr><tr><td class=\"key\">Reel, crane or mining trailing<\/td><td>Not a substitute for a reeling\/trailing cable<\/td><td>Axial load, torsion, roller contact, take-up, impact and dynamic fatigue<\/td><td class=\"warn\">Select a dedicated reeling\/trailing family<\/td><\/tr><tr><td class=\"key\">Protective conductor required<\/td><td>J version includes the green\/yellow PE function in the reference designation<\/td><td>Exact PE arrangement and project fault-current calculation<\/td><td class=\"source\">Confirm the order code<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1800 850\" role=\"img\" aria-label=\"N2XY-J selection decision diagram\">\n<defs><marker id=\"sel-a\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker><\/defs><rect width=\"1800\" height=\"850\" fill=\"#06131b\"\/><text x=\"60\" y=\"66\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"35\" font-weight=\"700\">N2XY-J selection gate \u2014 choose by service condition, not voltage alone<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\"><rect x=\"70\" y=\"260\" width=\"260\" height=\"150\" rx=\"14\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"3\"\/><text x=\"115\" y=\"325\" font-size=\"25\" font-weight=\"700\">Fixed LV feeder?<\/text><text x=\"115\" y=\"363\" font-size=\"18\">underground \/ duct \/ plant<\/text><path d=\"M330 335 H490\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-a)\"\/><rect x=\"490\" y=\"190\" width=\"360\" height=\"290\" rx=\"14\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"3\"\/><text x=\"545\" y=\"260\" fill=\"#62df9c\" font-size=\"25\" font-weight=\"700\">N2XY-J<\/text><text x=\"545\" y=\"300\" font-size=\"18\">Cu \/ XLPE \/ PVC<\/text><text x=\"545\" y=\"335\" font-size=\"18\">0.6\/1 kV \u00b7 PE included<\/text><text x=\"545\" y=\"370\" font-size=\"18\">90\u00b0C conductor<\/text><text x=\"545\" y=\"405\" font-size=\"18\">fixed installation<\/text><path d=\"M850 335 H1030\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-a)\"\/><rect x=\"1030\" y=\"190\" width=\"300\" height=\"290\" rx=\"14\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"3\"\/><text x=\"1080\" y=\"260\" fill=\"#e8c37b\" font-size=\"25\" font-weight=\"700\">Check project<\/text><text x=\"1080\" y=\"305\" font-size=\"18\">current capacity<\/text><text x=\"1080\" y=\"340\" font-size=\"18\">voltage drop<\/text><text x=\"1080\" y=\"375\" font-size=\"18\">soil \/ duct \/ air<\/text><text x=\"1080\" y=\"410\" font-size=\"18\">short-circuit duty<\/text><path d=\"M850 335 V610 H1030\" stroke=\"#ff777f\" stroke-width=\"4\" marker-end=\"url(#sel-a)\"\/><rect x=\"1030\" y=\"540\" width=\"300\" height=\"190\" rx=\"14\" fill=\"#0b202b\" stroke=\"#ff777f\" stroke-width=\"3\"\/><text x=\"1080\" y=\"600\" fill=\"#ff777f\" font-size=\"25\" font-weight=\"700\">Dynamic duty?<\/text><text x=\"1080\" y=\"640\" font-size=\"18\">reeling, drag chain,<\/text><text x=\"1080\" y=\"675\" font-size=\"18\">repeated torsion or impact<\/text><path d=\"M1330 635 H1570\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-a)\"\/><rect x=\"1570\" y=\"540\" width=\"180\" height=\"190\" rx=\"14\" fill=\"#0b202b\" stroke=\"#aa9bff\" stroke-width=\"3\"\/><text x=\"1594\" y=\"600\" fill=\"#aa9bff\" font-size=\"22\" font-weight=\"700\">Select<\/text><text x=\"1594\" y=\"638\" font-size=\"16\">reeling \/<\/text><text x=\"1594\" y=\"668\" font-size=\"16\">drag-chain cable<\/text><text x=\"70\" y=\"590\" fill=\"#ffaaa5\" font-size=\"22\" font-weight=\"700\">N2XY-J is not a universal high-flex replacement.<\/text><text x=\"70\" y=\"625\" font-size=\"17\">If the cable moves repeatedly, change the product family before changing only the conductor size.<\/text><\/g><\/svg><\/div>\n\n<h2>11. Installation and acceptance workflow<\/h2><div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1100\" role=\"img\" aria-label=\"N2XY-J installation and termination diagram\">\n<defs><marker id=\"inst-a\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#deedf2\"\/><\/marker><linearGradient id=\"inst-ground\" x1=\"0\" x2=\"0\" y1=\"0\" y2=\"1\"><stop stop-color=\"#1b3942\"\/><stop offset=\"1\" stop-color=\"#06131b\"\/><\/linearGradient><\/defs>\n<rect width=\"1900\" height=\"1100\" fill=\"#06131b\"\/><rect y=\"690\" width=\"1900\" height=\"410\" fill=\"url(#inst-ground)\"\/><path d=\"M0 690 H1900\" stroke=\"#58737a\" stroke-width=\"4\"\/><text x=\"65\" y=\"70\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\" fill=\"#55dff7\">N2XY-J installation controls \u2014 pulling, bending, cleating and termination<\/text><text x=\"65\" y=\"110\" font-family=\"Arial\" font-size=\"18\" fill=\"#adc4ce\">The cable is a fixed-installation feeder. Protect the PVC sheath from excessive pulling, edge pressure, crushing and unplanned dynamic movement.<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\"><rect x=\"95\" y=\"300\" width=\"230\" height=\"230\" rx=\"14\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"3\"\/><circle cx=\"210\" cy=\"390\" r=\"70\" fill=\"#263941\" stroke=\"#9eb4bb\" stroke-width=\"10\"\/><path d=\"M210 320 V460 M140 390 H280\" stroke=\"#e8c37b\" stroke-width=\"8\"\/><text x=\"125\" y=\"490\" font-size=\"22\" font-weight=\"700\">Drum pay-off<\/text><text x=\"125\" y=\"522\" font-size=\"16\">axis aligned<\/text>\n<path d=\"M325 390 C470 390 510 600 640 600\" fill=\"none\" stroke=\"#0b0f11\" stroke-width=\"42\"\/><path d=\"M325 390 C470 390 510 600 640 600\" fill=\"none\" stroke=\"#4d6068\" stroke-width=\"28\"\/><path d=\"M325 390 C470 390 510 600 640 600\" fill=\"none\" stroke=\"#55dff7\" stroke-width=\"4\"\/>\n<rect x=\"640\" y=\"550\" width=\"360\" height=\"90\" rx=\"12\" fill=\"#263941\" stroke=\"#879ba4\" stroke-width=\"5\"\/><path d=\"M720 595 H920\" stroke=\"#e8c37b\" stroke-width=\"10\"\/><text x=\"675\" y=\"730\" font-size=\"22\" font-weight=\"700\">Cleat \/ support point<\/text><text x=\"675\" y=\"762\" font-size=\"16\">avoid sheath point loading<\/text>\n<path d=\"M1000 595 H1130\" stroke=\"#55dff7\" stroke-width=\"28\"\/><path d=\"M1000 595 H1130\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#inst-a)\"\/><rect x=\"1130\" y=\"455\" width=\"300\" height=\"280\" rx=\"14\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"3\"\/><rect x=\"1190\" y=\"520\" width=\"180\" height=\"110\" fill=\"#263941\" stroke=\"#9eb4bb\" stroke-width=\"6\"\/><path d=\"M1210 560 H1350 M1210 590 H1350\" stroke=\"#55dff7\" stroke-width=\"6\"\/><path d=\"M1280 630 V685\" stroke=\"#62df9c\" stroke-width=\"8\"\/><text x=\"1180\" y=\"680\" font-size=\"22\" font-weight=\"700\">Gland \/ switchboard<\/text><text x=\"1180\" y=\"713\" font-size=\"16\">PE bonded and tested<\/text>\n<path d=\"M325 255 H760\" stroke=\"#deedf2\" stroke-width=\"3\" marker-end=\"url(#inst-a)\"\/><text x=\"95\" y=\"225\" fill=\"#f0d59e\" font-size=\"22\" font-weight=\"700\">Pulling direction<\/text><text x=\"95\" y=\"255\" font-size=\"17\">Use a suitable stocking; do not pull on the sheath alone.<\/text><path d=\"M460 520 A150 150 0 0 1 610 670\" fill=\"none\" stroke=\"#ff777f\" stroke-width=\"4\" stroke-dasharray=\"12 8\"\/><text x=\"390\" y=\"870\" fill=\"#ffaaa5\" font-size=\"22\" font-weight=\"700\">Respect the 15D \/ 12D minimum bend rule<\/text><text x=\"390\" y=\"902\" font-size=\"17\">The smaller the diameter, the smaller the absolute radius \u2014 but never below the product rule.<\/text><path d=\"M1430 570 H1760\" stroke=\"#62df9c\" stroke-width=\"4\"\/><text x=\"1460\" y=\"520\" fill=\"#62df9c\" font-size=\"22\" font-weight=\"700\">Acceptance tests<\/text><text x=\"1460\" y=\"552\" font-size=\"17\">continuity \u00b7 insulation resistance<\/text><text x=\"1460\" y=\"580\" font-size=\"17\">PE continuity \u00b7 sheath inspection<\/text><text x=\"1460\" y=\"608\" font-size=\"17\">phase sequence \u00b7 torque record<\/text><\/g><\/svg><\/div>\n<ol><li>Confirm the exact N2XY-J construction, conductor form, cross-section, outer diameter, sheath compound and released Feichun data sheet.<\/li><li>Check the drum label, cable length, shipping damage, moisture ingress, sheath marks and end seals before pulling.<\/li><li>Align the drum axis with the route; pay off without reverse winding, uncontrolled twist or flange impact.<\/li><li>Use a pulling stocking or approved pulling method; keep the pulling load and sidewall pressure within the project method statement.<\/li><li>Maintain at least 15D for single-core and 12D for multicore at bends, entries, glands and termination approaches unless the released data sheet requires more.<\/li><li>Provide cleats, trays, ducts or other mechanical protection where impact, crushing, sharp edges, vehicles, water movement or construction traffic could damage PVC.<\/li><li>Terminate the protective conductor, verify PE continuity and record torque, insulation resistance, phase identification and phase sequence.<\/li><li>Before energisation, confirm protective-device settings, short-circuit withstand, voltage-drop result, sheath integrity and as-built route documentation.<\/li><\/ol>\n\n<h2>12. Failure mode and effects analysis<\/h2><div class=\"grid\"><div class=\"warn\"><b>Wrong cable family:<\/b> N2XY-J is installed in a drag chain or reel; repeated movement fatigues the conductor and sheath.<\/div><div class=\"warn\"><b>Radius violation:<\/b> a tight gland entry or trench corner locally kinks the cable below 12D\/15D.<\/div><div class=\"warn\"><b>Pulling damage:<\/b> excessive force or sidewall pressure damages the PVC sheath or shifts the core geometry.<\/div><div class=\"warn\"><b>PE discontinuity:<\/b> the J core is not correctly terminated, leaving the protection path incomplete.<\/div><div class=\"warn\"><b>Thermal overrating:<\/b> a current table from air is applied to soil, grouped ducts or a hot enclosure without derating.<\/div><div class=\"warn\"><b>Fire-class mismatch:<\/b> standard PVC is specified where LSZH or a project reaction-to-fire class is mandatory.<\/div><div class=\"warn\"><b>Reference code error:<\/b> a historical J\/O part number is copied into a current Feichun purchase order without manufacturer confirmation.<\/div><div class=\"warn\"><b>Single-core system error:<\/b> parallel single-core cables are installed with incorrect phase spacing or magnetic cleat design.<\/div><\/div>\n\n<h2>13. Feichun Cable certification and project assurance<\/h2><div class=\"note\"><b>Engineered for maximum safety in demanding environments<\/b>, Feichun Cable cable systems comply with global standards including ATEX, IECEx, VDE, CE, UKCA, EAC, and the Russian Fire Safety Certificate. They are the trusted choice for heavy-duty mining equipment, ship-to-shore cranes, RTG\/RMG cranes, and conveyor systems where high reliability is non-negotiable.<\/div><div class=\"grid\"><div class=\"box\"><b>For an N2XY-J release<\/b><br>Confirm the exact conductor form, XLPE compound, PVC sheath compound, voltage, thermal limits, reaction-to-fire declaration, test report and marking before production release.<\/div><div class=\"box\"><b>Certification is configuration-specific<\/b><br>The company-level certification scope does not make every N2XY-J construction automatically ATEX, IECEx, EAC or fire-certified. The certificate package must match the exact product, market and installation.<\/div><div class=\"box\"><b>Feichun engineering value<\/b><br>Feichun can use the N2XY-J designation logic as a controlled low-voltage distribution platform while preserving the option to move to a dedicated flexible, mining, reeling, LSZH or screened construction when the service condition requires it.<\/div><\/div>\n\n<h2>14. Source map and data-status audit<\/h2><div class=\"scroll\"><table><thead><tr><th>Source<\/th><th>Use in this article<\/th><th>Status and limitation<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/assets-cdn.helukabel.com\/suppliers\/Helukabel\/documents\/db\/HELUKABEL_M32850_DE.pdf\" target=\"_blank\" rel=\"nofollow noopener\">HELUKABEL N2XY-J \/ N2XY-O reference PDF<\/a><\/td><td>Complete 22-row dimensional matrix; construction, voltage, temperatures, test voltage, tensile stress, radius and J\/O notes.<\/td><td>Published reference sheet dated 15 April 2015; not a Feichun order matrix.<\/td><\/tr><tr><td><a href=\"https:\/\/shop.helukabel.com\/de-de\/n2xy-j-n2xy-o-m32850\" target=\"_blank\" rel=\"nofollow noopener\">HELUKABEL current N2XY-J \/ N2XY-O family page<\/a><\/td><td>Current family context and product filtering by core count, cross-section, PE and conductor construction.<\/td><td>Supplier-specific product page; current Feichun product release must be confirmed independently.<\/td><\/tr><tr><td><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/64963\" target=\"_blank\" rel=\"nofollow noopener\">IEC 60502-1:2021<\/a><\/td><td>International scope for extruded-insulation 1 kV and 3 kV fixed-installation power cables.<\/td><td>Standard text is controlled by IEC; the article does not reproduce normative clauses.<\/td><\/tr><tr><td><a href=\"https:\/\/www.vde-verlag.de\/p\/normen\/din-vde-0276-603-vde-0276-603-1995-11\/0276000-DE-PR\" target=\"_blank\" rel=\"nofollow noopener\">DIN VDE 0276-603 \/ HD 603 reference record<\/a><\/td><td>Explains the European\/German distribution-cable reference used by the product sheet.<\/td><td>Displayed VDE record is historical\/withdrawn; always verify the applicable current edition for the contract.<\/td><\/tr><tr><td><a href=\"https:\/\/single-market-economy.ec.europa.eu\/sectors\/electrical-and-electronic-engineering-industries-eei\/low-voltage-directive-lvd_mt\" target=\"_blank\" rel=\"nofollow noopener\">EU Low Voltage Directive 2014\/35\/EU<\/a><\/td><td>Market-access context for electrical equipment and cables within the directive voltage range.<\/td><td>Market compliance still depends on the exact product declaration and jurisdiction.<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"warn\">This article is for preliminary engineering, search and technical comparison. The complete reference matrix is preserved, but exact Feichun N2XY-J dimensions, current capacity, test reports, certificates, marking, prices and delivery configuration must be confirmed against the current production data sheet.<\/div>\n<\/main>\n<footer><div class=\"wrap\"><h3>Feichun Cable \u2014 N2XY-J engineering support<\/h3><div class=\"contact\"><div><b>Phone<\/b><br><a href=\"tel:+8613855123218\">+86 13855123218<\/a><\/div><div><b>Technical email<\/b><br><a href=\"mailto:Tech@feichuncables.com\">Tech@feichuncables.com<\/a><\/div><\/div><p class=\"small\">This article distinguishes published reference values, derived checks and project-confirmation values. N2XY-J is a fixed-installation distribution platform and should not be treated as a universal substitute for a dedicated dynamic cable.<\/p><div>FEICHUN-N2XY-J-ENGINEERING-EN \u00b7 03 August 2026<\/div><\/div><\/footer>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"A technical English guide for engineers specifying N2XY-J power distribution cables for underground routes, cable ducts, concrete, outdoor plant, indoor switchboards, power stations and industrial networks. The article decodes the designation, reconstructs the physical cable layers, preserves the complete published reference matrix and separates reference, derived and project-confirmation values.","protected":false},"author":1,"featured_media":25168,"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":[66,1,56,27157],"tags":[16,111,17],"class_list":["post-25167","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-uncategorized","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\/25167","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=25167"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25167\/revisions"}],"predecessor-version":[{"id":25171,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25167\/revisions\/25171"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/25168"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=25167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=25167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=25167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}