{"id":25216,"date":"2026-08-04T11:09:14","date_gmt":"2026-08-04T03:09:14","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=25216"},"modified":"2026-08-04T11:09:19","modified_gmt":"2026-08-04T03:09:19","slug":"n2xseyby-6-10-kv-three-core-xlpe-copper-cable-with-double-steel-tape-armour","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/n2xseyby-6-10-kv-three-core-xlpe-copper-cable-with-double-steel-tape-armour\/","title":{"rendered":"N2XSEYBY 6\/10 kV \u2014 Three-Core XLPE Copper Cable with Double Steel Tape Armour"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n\n\n\n\n\nN2XSEYBY 6\/10 kV Cable | Feichun Three-Core XLPE Steel Tape Armoured Engineering Guide<\/title>\n<meta name=\"description\" content=\"Professional English engineering guide to N2XSEYBY 6\/10 kV three-core XLPE copper-conductor cable with copper screen, PVC filler, PVC separation sheath, double steel tape armour and PVC outer sheath, including blank-field controls and fixed-installation guidance.\">\n<meta name=\"keywords\" content=\"N2XSEYBY 6\/10 kV, N2XSEYBY 6.35\/11 kV, IEC 60502-2, three core XLPE cable, steel tape armoured cable, copper conductor MV cable, Feichun Cable\">\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(255,119,127,.15),transparent 34%),linear-gradient(135deg,#041018,#0b4056)}h1{font-size:48px;line-height:1.12;max-width:1500px}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:1500px}.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}.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:1200px}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)}code{color:#f0d59e;background:#071821;padding:2px 5px;border-radius:4px}.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\":\"N2XSEYBY 6\/10 kV Three-Core XLPE Steel Tape Armoured Cable Guide\",\"description\":\"Engineering guide to the N2XSEYBY three-core copper-conductor XLPE cable construction, IEC 60502-2 basis, PVC sheath system, double steel tape armour and blank-field verification 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>FEICHUN CABLE<\/span><span>N2XSEYBY 6\/10 kV<\/span><span>6.35\/11 kV Uo\/U<\/span><span>3 CORE<\/span><span>Cu \/ XLPE \/ PVC<\/span><span>DOUBLE STEEL TAPE ARMOUR<\/span><span>IEC 60502-2<\/span><\/div><h1>Feichun N2XSEYBY 6\/10 kV \u2014 Three-Core XLPE Copper Cable with Double Steel Tape Armour<\/h1><p class=\"lead\">A full-English engineering guide to the N2XSEYBY three-core medium-voltage cable construction: copper conductors, semiconducting screens, XLPE insulation, copper wires or tapes, PVC filler, PVC separation sheath, double steel tape armour and PVC outer sheath. The article also identifies every field that the supplied record leaves blank.<\/p><div class=\"meta\"><span>Uo\/U: 6.35 \/ 11 kV<\/span><span>3 cores<\/span><span>Impact resistance: Good<\/span><span>-20 … 90 \u00b0C usage range<\/span><span>250 \u00b0C short-circuit conductor limit<\/span><span>Bending factor: – (xD)<\/span><span>IEC 60332-1-2<\/span><\/div><\/div><\/section>\n<main class=\"wrap\">\n<div class=\"cards\"><div class=\"card\"><div>Voltage class<\/div><div class=\"value\">6.35\/11 kV<\/div><div>Uo\/U notation supplied by the source.<\/div><\/div><div class=\"card\"><div>Core construction<\/div><div class=\"value\">3 CORE<\/div><div>Three-core copper-conductor XLPE cable.<\/div><\/div><div class=\"card\"><div>Armour<\/div><div class=\"value\">2 \u00d7 STEEL TAPE<\/div><div>Double steel tape armour under PVC outer sheath.<\/div><\/div><div class=\"card\"><div>Published data gap<\/div><div class=\"value\">3 fields<\/div><div>Cross-section, laying factor and service temperature are not published.<\/div><\/div><\/div>\n<div class=\"toc\"><h3>Contents<\/h3><ol><li>Engineering position<\/li><li>Designation and construction logic<\/li><li>Standard and evidence review<\/li><li>Complete source specification<\/li><li>Published-data limitations<\/li><li>Layer-by-layer cross-section<\/li><li>Three-core electrical and mechanical system<\/li><li>Thermal, voltage-drop and short-circuit design<\/li><li>Fire and PVC performance boundary<\/li><li>Fixed-route applications<\/li><li>Handling and termination<\/li><li>Selection comparison<\/li><li>Failure mode analysis<\/li><li>Feichun certification scope<\/li><li>Source and revision audit<\/li><\/ol><\/div>\n\n<h2>1. Engineering position: a three-core armoured MV cable with controlled data boundaries<\/h2>\n<div class=\"note\"><b>N2XSEYBY is a three-core, XLPE-insulated, copper-conductor medium-voltage cable with copper wires or tapes as the metallic screen, PVC filler, PVC separation sheath, double steel tape armour and PVC outer sheath.<\/b> The supplied application is fixed energy-network service in residential or industrial areas, underground routes and ducts, including routes where mechanical stresses are expected.<\/div>\n<div class=\"grid\"><div class=\"box\"><b>Electrical platform<\/b><br>Each phase core has a copper conductor, semiconducting conductor screen, XLPE insulation and semiconducting insulation screen. Copper wires or tapes are listed as the metallic screen.<\/div><div class=\"box\"><b>Mechanical platform<\/b><br>Double steel tapes provide an armoured mechanical barrier around the PVC-separated core assembly. Armour overlap, tape dimensions, bonding and installation loads need the controlled drawing.<\/div><div class=\"box\"><b>Three-core platform<\/b><br>Three cores are grouped inside a PVC filler and separation sheath. This differs from a single-core system in phase geometry, magnetic coupling, termination arrangement and fault-current paths.<\/div><div class=\"box\"><b>Evidence platform<\/b><br>The record supplies voltage, operating range, impact rating and flame test reference, but it does not supply conductor area, ampacity, screen section, laying factor or continuous maximum conductor temperature.<\/div><\/div>\n<div class=\"warn\"><b>Data boundary:<\/b> this article does not invent a conductor cross-section, conductor flexibility class, current rating, conductor resistance, screen fault current, bending radius, service conductor temperature or fire class. Never fill a blank field from another size, supplier or cable family.<\/div>\n\n<h2>2. Designation and construction logic<\/h2>\n<div class=\"scroll\"><table><thead><tr><th>Designation \/ field<\/th><th>Engineering reading<\/th><th>Design consequence<\/th><th>Evidence status<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">N2X<\/td><td>XLPE-insulated medium-voltage cable family context.<\/td><td>Coordinate insulation, semiconducting screens, terminations and tests with the stated 6.35\/11 kV voltage.<\/td><td class=\"source\">Source construction<\/td><\/tr><tr><td class=\"key\">S<\/td><td>Metallic screen construction; source lists copper wires or tapes.<\/td><td>Screen continuity, earthing and fault duty require a controlled screen section and bonding design.<\/td><td class=\"source\">Source construction<\/td><\/tr><tr><td class=\"key\">EYBY<\/td><td>Do not rely on a letter-by-letter interpretation when the source already provides the actual build: PVC filler, PVC separation sheath, double steel tapes and PVC outer sheath.<\/td><td>Purchase and accessory documents should reproduce the construction sequence, not only the designation.<\/td><td class=\"source\">Construction-based interpretation<\/td><\/tr><tr><td class=\"key\">6\/10 kV<\/td><td>Product family title.<\/td><td>The characteristic table states Uo\/U as 6.35\/11 kV; use the exact source notation in the project schedule.<\/td><td class=\"source\">Family title + characteristic field<\/td><\/tr><tr><td class=\"key\">3 cores<\/td><td>Three-core cable.<\/td><td>Use a three-core termination and formation design; do not apply single-core cleat or screen-bond assumptions.<\/td><td class=\"source\">Official family page \/ PDF<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"grid\"><div class=\"box\"><b>Core-by-core screen interpretation<\/b><br>The source lists conductor screen, XLPE, insulation screen and metallic screen before the filler. The diagram shows a screened-core concept for explanation, while the exact screen placement and dimensions remain controlled-drawing items.<\/div><div class=\"box\"><b>PVC, not LSZH<\/b><br>The source explicitly lists PVC filler, PVC separation sheath and PVC outer sheath. No halogen-free, LSZH or low-smoke claim is added.<\/div><div class=\"box\"><b>Steel tape armour<\/b><br>Steel tape armour provides mechanical protection, but it is not automatically a substitute for a metallic fault-return conductor or an earthing system.<\/div><div class=\"box\"><b>Fixed-installation boundary<\/b><br>The source application covers underground and duct routes. A dash for the laying factor means that dynamic or even ordinary laying controls must be obtained before installation.<\/div><\/div>\n\n<h2>3. Standard and evidence review<\/h2>\n<div class=\"scroll\"><table><thead><tr><th>Reference<\/th><th>Role in this article<\/th><th>Engineering interpretation<\/th><th>Boundary<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">IEC 60502-2<\/td><td>Product standard listed by the source.<\/td><td>Use for the construction, dimensions and test-basis review of the applicable extruded-insulation MV cable.<\/td><td class=\"source\">Confirm the project-adopted edition and exact Feichun conformity file.<\/td><\/tr><tr><td class=\"key\">IEC 60332-1-2<\/td><td>Flame retardant reference listed by the source.<\/td><td>The official IEC scope describes a vertical flame-propagation test for a single insulated wire or cable using a 1 kW pre-mixed flame. It is not a CPR class.<\/td><td class=\"source\">Source gives the standard number without an edition.<\/td><\/tr><tr><td class=\"key\">PVC system<\/td><td>PVC filler, separation sheath and outer sheath.<\/td><td>Review smoke, corrosive gas, halogen, fire stopping and local building requirements from the actual product documentation.<\/td><td class=\"source\">No LSZH or halogen-free claim is supplied.<\/td><\/tr><tr><td class=\"key\">Impact resistance<\/td><td>Good.<\/td><td>Useful as a product characteristic, but route-specific impact, compression and installation loads still require design.<\/td><td class=\"source\">No detailed impact test value is supplied.<\/td><\/tr><tr><td class=\"key\">CPR fire class<\/td><td>Not stated in the supplied N2XSEYBY record.<\/td><td>Do not insert Dca, Cca, Eca or any s\/d\/a sub-class from another Nexans or Feichun cable.<\/td><td class=\"source\">Not published.<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"note\"><b>IEC scope check:<\/b> the official IEC 60502-2 record describes extruded-insulation cables from 6 kV up to 30 kV for fixed installations such as distribution networks and industrial installations. N2XSEYBY is listed by the product source under IEC 60502-2; the exact edition and project conformity evidence still need to be controlled.<\/div>\n\n<h2>4. Complete source specification<\/h2>\n<div class=\"note\"><b>Every user-provided field is preserved below.<\/b> The article uses \u201cNot published\u201d or the source dash where the record does not provide a value. The official PDF adds the 250 \u00b0C short-circuit conductor temperature, while preserving the dash fields.<\/div>\n<div class=\"scroll\"><table><thead><tr><th>Specification field<\/th><th>Reference value<\/th><th>Engineering interpretation<\/th><th>Evidence status<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">Product designation<\/td><td class=\"source\">N2XSEYBY 6\/10 kV<\/td><td>Three-core XLPE-insulated copper-conductor cable with copper metallic screen, PVC filler, PVC separation sheath, double steel tape armour and PVC outer sheath.<\/td><td class=\"source\">Supplied \/ Nexans family reference<\/td><\/tr><tr><td class=\"key\">Product description<\/td><td class=\"source\">6\/10 kV XLPE insulated steel tape armoured, three core cables with copper conductor<\/td><td>A fixed-installation MV cable architecture for energy networks and routes where mechanical stresses are expected.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Product standard<\/td><td class=\"source\">IEC 60502-2<\/td><td>The source lists IEC 60502-2. Confirm the project-adopted edition, accessories and exact Feichun conformity route before release.<\/td><td class=\"source\">Supplied source \u2014 current edition to be confirmed<\/td><\/tr><tr><td class=\"key\">Conductor material<\/td><td class=\"source\">Copper<\/td><td>Phase conductors are identified as copper; no conductor cross-section is published in the supplied record.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Number of cores<\/td><td class=\"source\">3<\/td><td>Three-core construction; phase arrangement is internal to the cable, but termination, earthing and system protection remain project-level decisions.<\/td><td class=\"source\">Official family page \/ PDF<\/td><\/tr><tr><td class=\"key\">Conductor cross-section<\/td><td class=\"source\">– mm\u00b2<\/td><td>The source explicitly leaves the conductor cross-section unpublished. No size, resistance, current rating or mass is invented.<\/td><td class=\"source\">Official family page \/ PDF \u2014 not published<\/td><\/tr><tr><td class=\"key\">Conductor flexibility<\/td><td class=\"source\">Not stated<\/td><td>The supplied record does not state a conductor flexibility class. Do not copy Class 2 from another N2X family.<\/td><td class=\"source\">Not published in supplied record<\/td><\/tr><tr><td class=\"key\">Rated Voltage Uo\/U (Um)<\/td><td class=\"source\">6.35 \/ 11 kV<\/td><td>The source gives Uo\/U as 6.35\/11 kV. No additional Um value is added.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Mechanical resistance to impacts<\/td><td class=\"source\">Good<\/td><td>Impact resistance is listed as Good; exact impact test basis and construction release must be confirmed for Feichun.<\/td><td class=\"source\">Supplied source \/ official PDF<\/td><\/tr><tr><td class=\"key\">Operating temperature, range<\/td><td class=\"source\">-20 … 90 \u00b0C<\/td><td>The source usage range; this does not by itself establish a continuous conductor temperature rating.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Short-circuit max. conductor temperature<\/td><td class=\"source\">250 \u00b0C<\/td><td>Shown in the official family PDF; use with conductor size, I\u00b2t, protection clearing time and accessory capability.<\/td><td class=\"source\">Official family PDF \u2014 page 2<\/td><\/tr><tr><td class=\"key\">Bending factor when laying<\/td><td class=\"source\">– (xD)<\/td><td>The source leaves the laying factor blank. No minimum radius can be calculated from this record.<\/td><td class=\"source\">Supplied source \u2014 not published<\/td><\/tr><tr><td class=\"key\">Max. conductor temperature in service<\/td><td class=\"source\">– \u00b0C<\/td><td>The source leaves the continuous maximum conductor temperature blank. Do not assume 90 \u00b0C from another XLPE family.<\/td><td class=\"source\">Supplied source \u2014 not published<\/td><\/tr><tr><td class=\"key\">Flame retardant<\/td><td class=\"source\">IEC 60332-1-2<\/td><td>Single vertical insulated wire or cable flame-propagation test reference; it is not a CPR class and not a bunched-cable Category C claim.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Conductor screen<\/td><td class=\"source\">Semi-conducting compound (XLPE)<\/td><td>Radial electric-field transition at the conductor-to-XLPE interface.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Insulation<\/td><td class=\"source\">XLPE<\/td><td>Primary solid dielectric layer for the stated MV voltage class.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Insulation screen<\/td><td class=\"source\">Semi-conducting compound (XLPE)<\/td><td>Controls the outer electric-field interface around each insulated core.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Metallic screen<\/td><td class=\"source\">Copper wires or tapes<\/td><td>Copper screening is listed, but screen geometry, section and short-circuit duty are not published in the supplied record.<\/td><td class=\"source\">Supplied source \u2014 numerical screen data absent<\/td><\/tr><tr><td class=\"key\">Filler<\/td><td class=\"source\">PVC<\/td><td>Fills the interstices of the three-core assembly and supports the circular cable build.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Separation sheath<\/td><td class=\"source\">PVC<\/td><td>Separates the core assembly from the double steel tape armour.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Armour<\/td><td class=\"source\">Double steel tapes<\/td><td>Provides mechanical protection; armour overlap, tape dimensions, bonding and fault-current behaviour require the released drawing.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Outer sheath<\/td><td class=\"source\">PVC<\/td><td>External PVC protection. The supplied record makes no LSZH, halogen-free or low-smoke claim for this cable.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Application<\/td><td class=\"source\">Energy networks with sudden load changes where mechanical stresses are expected; residential or industrial areas; underground or in ducts<\/td><td>Use for fixed routes after voltage, thermal, mechanical, fire, water, earthing and accessory conditions are closed by design.<\/td><td class=\"source\">Supplied source<\/td><\/tr><tr><td class=\"key\">Source record supplied by user<\/td><td class=\"source\">Generated 8\/4\/26 \u2014 www.nexans.com.tr \u2014 Page 1 \/ 2<\/td><td>Preserved exactly as supplied; revision identity must be checked against the controlled release.<\/td><td class=\"source\">Supplied source metadata<\/td><\/tr><tr><td class=\"key\">Live family PDF record checked online<\/td><td class=\"source\">Generated 7\/8\/26 \u2014 www.nexans.com.tr \u2014 Page 1 \/ 2<\/td><td>A separate online PDF record showed a different generated date. The two dates are kept separate and are not merged into one revision.<\/td><td class=\"source\">Official PDF metadata \u2014 separate record<\/td><\/tr><tr><td class=\"key\">Live PDF page 2 construction record<\/td><td class=\"source\">N2XSEYBY 6\/10 kV \u2014 Page 2 \/ 2<\/td><td>The checked PDF confirms three cores, 250 \u00b0C short-circuit conductor temperature and the same dash fields for bend factor and service temperature.<\/td><td class=\"source\">Official family PDF \u2014 page 2<\/td><\/tr><\/tbody><\/table><\/div>\n\n<h2>5. Published-data limitations and what cannot yet be calculated<\/h2>\n<div class=\"scroll\"><table><thead><tr><th>Required design input<\/th><th>Source state<\/th><th>Why it matters<\/th><th>Required Feichun release action<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">Conductor cross-section<\/td><td class=\"source\">– mm\u00b2<\/td><td>Without conductor area, conductor resistance, current rating, mass, diameter and accessory size cannot be selected.<\/td><td class=\"source\">Publish a size-specific data sheet and product code.<\/td><\/tr><tr><td class=\"key\">Continuous maximum conductor temperature<\/td><td class=\"source\">– \u00b0C<\/td><td>Operating range -20 … 90 \u00b0C is not a continuous conductor-temperature declaration.<\/td><td class=\"source\">Confirm continuous service limit with XLPE, screen, sheath and accessories.<\/td><\/tr><tr><td class=\"key\">Bending factor when laying<\/td><td class=\"source\">– (xD)<\/td><td>No minimum laying radius can be calculated; pulling and entry geometry cannot be released safely.<\/td><td class=\"source\">Publish installation factor and accessory-specific limits.<\/td><\/tr><tr><td class=\"key\">Current ratings<\/td><td class=\"source\">Not supplied<\/td><td>Thermal selection cannot be performed for air, buried, duct, flat or trefoil conditions.<\/td><td class=\"source\">Publish or calculate ratings with the stated installation basis.<\/td><\/tr><tr><td class=\"key\">Screen \/ armour fault duty<\/td><td class=\"source\">Not supplied<\/td><td>Earth-fault path, screen bonding, steel tape behaviour and protection coordination remain unresolved.<\/td><td class=\"source\">Release screen section, armour details and I\u00b2t capability.<\/td><\/tr><tr><td class=\"key\">Fire classification<\/td><td class=\"source\">Not stated<\/td><td>PVC construction and IEC 60332-1-2 cannot be converted into a CPR classification.<\/td><td class=\"source\">Provide product-specific declaration if required by the project.<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"warn\"><b>Engineering stop condition:<\/b> the cable can be described and structurally reviewed from the source, but it cannot be fully sized, thermally rated or radius-released until the missing fields are closed for the exact Feichun construction.<\/div>\n\n<h2>6. Layer-by-layer cross-section<\/h2>\n<div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1380\" role=\"img\" aria-label=\"Physically credible three-core N2XSEYBY cable cross-section with copper cores, XLPE, copper screens, PVC filler, PVC sheath and double steel tape armour\">\n<defs>\n<radialGradient id=\"n2xse-outer\" cx=\"30%\" cy=\"22%\"><stop stop-color=\"#56636c\"\/><stop offset=\".65\" stop-color=\"#28343b\"\/><stop offset=\"1\" stop-color=\"#0e161c\"\/><\/radialGradient>\n<radialGradient id=\"n2xse-pvc\" cx=\"30%\" cy=\"22%\"><stop stop-color=\"#496674\"\/><stop offset=\".65\" stop-color=\"#273e49\"\/><stop offset=\"1\" stop-color=\"#12212a\"\/><\/radialGradient>\n<radialGradient id=\"n2xse-xlpe\" cx=\"30%\" cy=\"22%\"><stop stop-color=\"#f8ebc9\"\/><stop offset=\".72\" stop-color=\"#d5bd8a\"\/><stop offset=\"1\" stop-color=\"#92764c\"\/><\/radialGradient>\n<radialGradient id=\"n2xse-cu\" cx=\"30%\" cy=\"22%\"><stop stop-color=\"#f1b26e\"\/><stop offset=\".65\" stop-color=\"#bf682b\"\/><stop offset=\"1\" stop-color=\"#703313\"\/><\/radialGradient>\n<pattern id=\"n2xse-strands\" width=\"16\" height=\"16\" patternUnits=\"userSpaceOnUse\"><circle cx=\"4\" cy=\"4\" r=\"3.2\" fill=\"#f4c383\"\/><circle cx=\"12\" cy=\"4\" r=\"3.2\" fill=\"#b75c26\"\/><circle cx=\"8\" cy=\"12\" r=\"3.2\" fill=\"#d67a33\"\/><\/pattern>\n<pattern id=\"n2xse-screen\" width=\"16\" height=\"16\" patternUnits=\"userSpaceOnUse\"><path d=\"M0 3 L16 13 M-4 3 L12 13 M4 -3 L20 7\" stroke=\"#d8b44d\" stroke-width=\"3.5\"\/><path d=\"M0 13 L16 3 M-4 13 L12 3 M4 19 L20 9\" stroke=\"#8c651e\" stroke-width=\"2.5\"\/><\/pattern>\n<pattern id=\"n2xse-steel\" width=\"30\" height=\"30\" patternUnits=\"userSpaceOnUse\"><path d=\"M0 4 H30 M0 15 H30 M0 26 H30\" stroke=\"#dbe3e7\" stroke-width=\"7\"\/><path d=\"M0 4 H30 M0 15 H30 M0 26 H30\" stroke=\"#66747c\" stroke-width=\"2\"\/><\/pattern>\n<marker id=\"n2xse-arrow\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker>\n<\/defs>\n<rect width=\"1900\" height=\"1380\" fill=\"#06131b\"\/>\n<text x=\"62\" y=\"67\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\">N2XSEYBY 6\/10 kV \u2014 three-core source construction<\/text>\n<text x=\"62\" y=\"107\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"18\">Copper conductors \u00b7 XLPE insulation \u00b7 copper wires or tapes \u00b7 PVC filler \u00b7 PVC separation sheath \u00b7 double steel tape armour \u00b7 PVC outer sheath.<\/text>\n<text x=\"62\" y=\"141\" fill=\"#ffaaa5\" font-family=\"Arial\" font-size=\"16\">Conceptual engineering reconstruction, not a manufacturing drawing. The source does not publish conductor area, screen section or layer dimensions.<\/text>\n<g transform=\"translate(640 790)\">\n <circle r=\"505\" fill=\"url(#n2xse-outer)\" stroke=\"#9eabb2\" stroke-width=\"14\"\/>\n <circle r=\"445\" fill=\"url(#n2xse-steel)\" stroke=\"#dce5e8\" stroke-width=\"12\"\/>\n <circle r=\"407\" fill=\"url(#n2xse-pvc)\" stroke=\"#7396a5\" stroke-width=\"9\"\/>\n <circle cx=\"-150\" cy=\"-115\" r=\"175\" fill=\"url(#n2xse-screen)\" stroke=\"#e8c37b\" stroke-width=\"11\"\/>\n <circle cx=\"150\" cy=\"-115\" r=\"175\" fill=\"url(#n2xse-screen)\" stroke=\"#e8c37b\" stroke-width=\"11\"\/>\n <circle cx=\"0\" cy=\"155\" r=\"175\" fill=\"url(#n2xse-screen)\" stroke=\"#e8c37b\" stroke-width=\"11\"\/>\n <g>\n <circle cx=\"-150\" cy=\"-115\" r=\"145\" fill=\"#3e646f\" stroke=\"#9fcbd1\" stroke-width=\"7\" stroke-dasharray=\"8 10\"\/><circle cx=\"150\" cy=\"-115\" r=\"145\" fill=\"#3e646f\" stroke=\"#9fcbd1\" stroke-width=\"7\" stroke-dasharray=\"8 10\"\/><circle cx=\"0\" cy=\"155\" r=\"145\" fill=\"#3e646f\" stroke=\"#9fcbd1\" stroke-width=\"7\" stroke-dasharray=\"8 10\"\/>\n <circle cx=\"-150\" cy=\"-115\" r=\"118\" fill=\"url(#n2xse-xlpe)\" stroke=\"#ffe8a5\" stroke-width=\"9\"\/><circle cx=\"150\" cy=\"-115\" r=\"118\" fill=\"url(#n2xse-xlpe)\" stroke=\"#ffe8a5\" stroke-width=\"9\"\/><circle cx=\"0\" cy=\"155\" r=\"118\" fill=\"url(#n2xse-xlpe)\" stroke=\"#ffe8a5\" stroke-width=\"9\"\/>\n <circle cx=\"-150\" cy=\"-115\" r=\"59\" fill=\"url(#n2xse-cu)\" stroke=\"#f5c083\" stroke-width=\"7\"\/><circle cx=\"150\" cy=\"-115\" r=\"59\" fill=\"url(#n2xse-cu)\" stroke=\"#f5c083\" stroke-width=\"7\"\/><circle cx=\"0\" cy=\"155\" r=\"59\" fill=\"url(#n2xse-cu)\" stroke=\"#f5c083\" stroke-width=\"7\"\/>\n <circle cx=\"-150\" cy=\"-115\" r=\"43\" fill=\"url(#n2xse-strands)\" stroke=\"#ffe0a8\" stroke-width=\"4\"\/><circle cx=\"150\" cy=\"-115\" r=\"43\" fill=\"url(#n2xse-strands)\" stroke=\"#ffe0a8\" stroke-width=\"4\"\/><circle cx=\"0\" cy=\"155\" r=\"43\" fill=\"url(#n2xse-strands)\" stroke=\"#ffe0a8\" stroke-width=\"4\"\/>\n <\/g>\n <text x=\"-176\" y=\"-105\" fill=\"#fff1c1\" font-family=\"Arial\" font-size=\"20\" font-weight=\"700\">L1<\/text><text x=\"125\" y=\"-105\" fill=\"#fff1c1\" font-family=\"Arial\" font-size=\"20\" font-weight=\"700\">L2<\/text><text x=\"-25\" y=\"165\" fill=\"#fff1c1\" font-family=\"Arial\" font-size=\"20\" font-weight=\"700\">L3<\/text>\n<\/g>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <line x1=\"1040\" y1=\"300\" x2=\"1390\" y2=\"160\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"1415\" y=\"157\" font-size=\"24\" font-weight=\"700\" fill=\"#c9d8dd\">1. PVC outer sheath<\/text><text x=\"1415\" y=\"190\" font-size=\"18\">External PVC environmental and mechanical interface.<\/text>\n <line x1=\"980\" y1=\"410\" x2=\"1390\" y2=\"300\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"1415\" y=\"297\" font-size=\"24\" font-weight=\"700\" fill=\"#dce5e8\">2. Double steel tape armour<\/text><text x=\"1415\" y=\"330\" font-size=\"18\">Armour system for mechanical protection; exact tape geometry is unpublished.<\/text>\n <line x1=\"930\" y1=\"520\" x2=\"1390\" y2=\"450\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"1415\" y=\"447\" font-size=\"24\" font-weight=\"700\" fill=\"#7eafbf\">3. PVC separation sheath<\/text><text x=\"1415\" y=\"480\" font-size=\"18\">Separates the three-core assembly from the steel tapes.<\/text>\n <line x1=\"845\" y1=\"640\" x2=\"1390\" y2=\"600\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"1415\" y=\"597\" font-size=\"24\" font-weight=\"700\" fill=\"#e8c37b\">4. Copper wires or tapes<\/text><text x=\"1415\" y=\"630\" font-size=\"18\">Metallic screen around the insulated core construction; exact arrangement requires confirmation.<\/text>\n <line x1=\"405\" y1=\"620\" x2=\"70\" y2=\"355\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"62\" y=\"290\" font-size=\"24\" font-weight=\"700\" fill=\"#6ca8b6\">5. PVC filler<\/text><text x=\"62\" y=\"323\" font-size=\"18\">Fills interstitial spaces between the three screened cores.<\/text>\n <line x1=\"410\" y1=\"750\" x2=\"70\" y2=\"690\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"62\" y=\"625\" font-size=\"24\" font-weight=\"700\" fill=\"#9ce9f3\">6. XLPE core insulation and semicon screens<\/text><text x=\"62\" y=\"658\" font-size=\"18\">Three separately insulated MV cores; exact conductor area is not published.<\/text>\n <line x1=\"445\" y1=\"930\" x2=\"70\" y2=\"1080\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#n2xse-arrow)\"\/><text x=\"62\" y=\"1020\" font-size=\"24\" font-weight=\"700\" fill=\"#e8a568\">7. Copper conductors<\/text><text x=\"62\" y=\"1053\" font-size=\"18\">Three phases; source field: conductor cross-section \u201c- mm\u00b2\u201d.<\/text>\n <rect x=\"1050\" y=\"1000\" width=\"720\" height=\"135\" rx=\"12\" fill=\"#081b24\" stroke=\"#315b6f\" stroke-width=\"2\"\/><text x=\"1080\" y=\"1040\" font-size=\"19\" fill=\"#55dff7\">Physical note:<\/text><text x=\"1080\" y=\"1072\" font-size=\"18\">The drawing shows an individual screened-core concept for explanation.<\/text><text x=\"1080\" y=\"1103\" font-size=\"18\">Confirm screen placement and dimensions from the released manufacturing drawing.<\/text>\n <text x=\"1080\" y=\"1265\" font-size=\"20\" font-weight=\"700\" fill=\"#ffaaa5\">Not to scale \u00b7 no numerical layer thickness or conductor area is inferred.<\/text>\n<\/g><\/svg><\/div>\n<p>The source sequence is: copper conductor; semiconducting conductor screen; XLPE insulation; semiconducting insulation screen; copper wires or tapes metallic screen; PVC filler; PVC separation sheath; double steel tapes; PVC outer sheath. The cross-section is intentionally labelled as a conceptual screened-core arrangement because the source does not publish exact screen placement, core dimensions or armour geometry.<\/p>\n<div class=\"grid\"><div class=\"box\"><b>Three insulated cores<\/b><br>Each phase is shown with the listed conductor screen, XLPE insulation and insulation screen. The source does not publish the conductor area.<\/div><div class=\"box\"><b>Copper metallic screen<\/b><br>Screen continuity and bonding are part of MV electric-field and earth-fault design. The source does not publish a screen section or short-circuit current.<\/div><div class=\"box\"><b>PVC filler<\/b><br>Filler maintains assembly geometry and supports the separation sheath. Filler selection influences circularity, sheath interface and termination preparation.<\/div><div class=\"box\"><b>Double steel tape armour<\/b><br>Armour provides mechanical protection but exact overlap, tape width, thickness, lay and bonding must come from the controlled construction drawing.<\/div><\/div>\n\n<h2>7. Three-core electrical and mechanical system<\/h2>\n<div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 980\" role=\"img\" aria-label=\"N2XSEYBY three-core cable electrical system showing phases, metallic screens, steel tape armour and fault path review\">\n<defs><marker id=\"elec-arrow-n2xse\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker><linearGradient id=\"elec-cable-n2xse\" x1=\"0\" x2=\"1\"><stop stop-color=\"#536d77\"\/><stop offset=\"1\" stop-color=\"#1a252b\"\/><\/linearGradient><\/defs>\n<rect width=\"1900\" height=\"980\" fill=\"#06131b\"\/>\n<text x=\"60\" y=\"66\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\">N2XSEYBY three-core system \u2014 electric field, screen and armour review<\/text>\n<text x=\"60\" y=\"105\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"18\">Three-core construction simplifies phase grouping, but the metallic screen, steel tape armour, terminations and earth-fault path still require a controlled system design.<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <rect x=\"70\" y=\"210\" width=\"520\" height=\"555\" rx=\"16\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"4\"\/><text x=\"130\" y=\"275\" font-size=\"26\" font-weight=\"700\" fill=\"#55dff7\">Three phase cores<\/text>\n <circle cx=\"245\" cy=\"470\" r=\"105\" fill=\"#2e5662\" stroke=\"#dcebf0\" stroke-width=\"9\"\/><circle cx=\"245\" cy=\"470\" r=\"45\" fill=\"#be6c31\" stroke=\"#f3bd7a\" stroke-width=\"7\"\/><text x=\"222\" y=\"478\" font-size=\"21\" font-weight=\"700\">L1<\/text>\n <circle cx=\"420\" cy=\"470\" r=\"105\" fill=\"#2e5662\" stroke=\"#dcebf0\" stroke-width=\"9\"\/><circle cx=\"420\" cy=\"470\" r=\"45\" fill=\"#be6c31\" stroke=\"#f3bd7a\" stroke-width=\"7\"\/><text x=\"397\" y=\"478\" font-size=\"21\" font-weight=\"700\">L2<\/text>\n <circle cx=\"332\" cy=\"625\" r=\"105\" fill=\"#2e5662\" stroke=\"#dcebf0\" stroke-width=\"9\"\/><circle cx=\"332\" cy=\"625\" r=\"45\" fill=\"#be6c31\" stroke=\"#f3bd7a\" stroke-width=\"7\"\/><text x=\"309\" y=\"633\" font-size=\"21\" font-weight=\"700\">L3<\/text>\n <text x=\"135\" y=\"720\" font-size=\"18\">XLPE + semicon screens<\/text><text x=\"135\" y=\"750\" font-size=\"18\">copper wires \/ tapes screen<\/text>\n <path d=\"M590 470 H760\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#elec-arrow-n2xse)\"\/>\n\n <rect x=\"760\" y=\"210\" width=\"500\" height=\"555\" rx=\"16\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"4\"\/><text x=\"825\" y=\"275\" font-size=\"26\" font-weight=\"700\" fill=\"#e8c37b\">System interfaces<\/text>\n <rect x=\"850\" y=\"355\" width=\"315\" height=\"55\" rx=\"8\" fill=\"#35525c\" stroke=\"#aed0d6\" stroke-width=\"4\"\/><text x=\"925\" y=\"390\" font-size=\"19\" font-weight=\"700\">Metallic screen<\/text>\n <rect x=\"850\" y=\"455\" width=\"315\" height=\"55\" rx=\"8\" fill=\"#66747c\" stroke=\"#e2e9eb\" stroke-width=\"4\"\/><text x=\"925\" y=\"490\" font-size=\"19\" font-weight=\"700\">PVC filler \/ sheath<\/text>\n <rect x=\"850\" y=\"555\" width=\"315\" height=\"55\" rx=\"8\" fill=\"#29343a\" stroke=\"#dce5e8\" stroke-width=\"8\"\/><text x=\"925\" y=\"590\" font-size=\"19\" font-weight=\"700\">Double steel tapes<\/text>\n <path d=\"M810 680 H1195\" stroke=\"#62df9c\" stroke-width=\"4\" marker-end=\"url(#elec-arrow-n2xse)\"\/><text x=\"830\" y=\"720\" font-size=\"17\" fill=\"#62df9c\">continuity \/ bonding \/ induced-current review<\/text>\n <path d=\"M1260 470 H1410\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#elec-arrow-n2xse)\"\/>\n\n <rect x=\"1410\" y=\"210\" width=\"410\" height=\"555\" rx=\"16\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"4\"\/><text x=\"1465\" y=\"275\" font-size=\"26\" font-weight=\"700\" fill=\"#62df9c\">Release gates<\/text><text x=\"1465\" y=\"350\" font-size=\"19\">phase identification<\/text><text x=\"1465\" y=\"395\" font-size=\"19\">screen continuity<\/text><text x=\"1465\" y=\"440\" font-size=\"19\">armour protection<\/text><text x=\"1465\" y=\"485\" font-size=\"19\">earth-fault path<\/text><text x=\"1465\" y=\"530\" font-size=\"19\">termination compatibility<\/text><text x=\"1465\" y=\"575\" font-size=\"19\">short-circuit I\u00b2t<\/text><text x=\"1465\" y=\"620\" font-size=\"19\">route mechanical loads<\/text><rect x=\"1460\" y=\"665\" width=\"310\" height=\"58\" rx=\"10\" fill=\"#081b24\" stroke=\"#ff777f\" stroke-width=\"2\"\/><text x=\"1485\" y=\"701\" font-size=\"16\" fill=\"#ffaaa5\">No conductor area = no ampacity claim.<\/text>\n <rect x=\"80\" y=\"850\" width=\"1740\" height=\"70\" rx=\"10\" fill=\"#081b24\" stroke=\"#315b6f\" stroke-width=\"2\"\/><text x=\"110\" y=\"893\" font-size=\"18\" fill=\"#ffaaa5\">Do not fill the unpublished conductor cross-section, screen section, service temperature or short-circuit current from another three-core or single-core cable.<\/text>\n<\/g><\/svg><\/div>\n<div class=\"grid\"><div class=\"box\"><b>Phase geometry<\/b><br>Three-core construction fixes the relative phase geometry inside one cable. Do not reuse single-core flat or trefoil assumptions for cleats, screen currents or induced effects.<\/div><div class=\"box\"><b>Screen path<\/b><br>Copper wires or tapes are listed as metallic screen. The system requires continuity through joints and terminations, plus a defined earthing and fault-return arrangement.<\/div><div class=\"box\"><b>Steel tape behaviour<\/b><br>Steel tape armour is a mechanical barrier. Its electrical treatment, bonding and possible circulating-current behaviour need the actual design and standard basis.<\/div><div class=\"box\"><b>Impact versus movement<\/b><br>Good impact resistance does not establish a repeated-motion rating. The blank bending field prevents a dynamic or minimum-radius claim.<\/div><\/div>\n\n<h2>8. Thermal, voltage-drop and short-circuit design<\/h2>\n<div class=\"grid\"><div class=\"box\"><b>Thermal rating cannot be copied<\/b><br>No conductor area, current rating or continuous maximum conductor temperature is published. Do not borrow 90 \u00b0C continuous service from another XLPE cable.<\/div><div class=\"box\"><b>Voltage drop needs conductor data<\/b><br>A 6.35\/11 kV label does not provide conductor resistance, inductance or load capacity. The project needs conductor area, route length, power factor, load profile and installation formation.<\/div><div class=\"box\"><b>Short-circuit boundary<\/b><br>The official PDF states a 250 \u00b0C maximum short-circuit conductor temperature, but no conductor area or permissible 1 s current is supplied. I\u00b2t cannot be calculated.<\/div><div class=\"box\"><b>Installation method<\/b><br>Underground, ducts and residential \/ industrial areas have different thermal, mechanical, fire and water conditions. The actual route must be the design basis.<\/div><\/div>\n<div class=\"formula\">Three-phase voltage-drop screening relation:\n\u0394U \u2248 \u221a3 \u00d7 I \u00d7 (R_ac \u00d7 cos \u03c6 + X \u00d7 sin \u03c6) \u00d7 L\n\nThermal acceptance:\nI_load \u2264 I_z(actual conductor area, formation, ambient, soil, grouping, duct, screen and accessory limits)\n\nShort-circuit coordination:\nI\u00b2t_protection \u2264 I\u00b2t_conductor \/ screen \/ armour \/ joint \/ termination system\n\nFor this supplied N2XSEYBY record, the conductor area, current ratings, impedance and screen \/ armour fault values are not published. The formulas identify the required engineering work; they do not create missing data.<\/div>\n\n<h2>9. Fire and PVC performance boundary<\/h2>\n<div class=\"grid\"><div class=\"box\"><b>IEC 60332-1-2<\/b><br>The source lists a single insulated wire or cable vertical flame-propagation reference. The official IEC publication describes the 1 kW pre-mixed flame procedure. It is not a CPR Dca \/ Cca \/ Eca class.<\/div><div class=\"box\"><b>PVC outer system<\/b><br>The source lists PVC filler, PVC separation sheath and PVC outer sheath. No low-smoke, halogen-free or corrosive-gas claim is added.<\/div><div class=\"box\"><b>Project fire dossier<\/b><br>Confirm the current product declaration, fire barriers, penetrations, supports, cable grouping, enclosure and local construction requirements.<\/div><div class=\"box\"><b>Mechanical and fire trade-off<\/b><br>Steel tape armour and PVC provide a different design profile from LSZH aluminium-armoured cables. Selection should be made against the actual mechanical, fire and environmental priority.<\/div><\/div>\n<div class=\"warn\"><b>Procurement rule:<\/b> do not market this source record as LSZH, halogen-free, Dca, Cca, Eca or fire-resistant unless the exact Feichun construction has a matching current declaration and test report.<\/div>\n\n<h2>10. Fixed-route application architecture<\/h2>\n<div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1000\" role=\"img\" aria-label=\"N2XSEYBY fixed three-core MV cable applications from substation through duct or underground route to industrial load\">\n<defs><linearGradient id=\"app-sky-n2xse\" x1=\"0\" x2=\"0\" y1=\"0\" y2=\"1\"><stop stop-color=\"#0b3347\"\/><stop offset=\"1\" stop-color=\"#06131b\"\/><\/linearGradient><linearGradient id=\"app-ground-n2xse\" x1=\"0\" x2=\"0\" y1=\"0\" y2=\"1\"><stop stop-color=\"#304e55\"\/><stop offset=\"1\" stop-color=\"#0a1b24\"\/><\/linearGradient><marker id=\"app-arrow-n2xse\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker><\/defs>\n<rect width=\"1900\" height=\"1000\" fill=\"url(#app-sky-n2xse)\"\/><rect y=\"650\" width=\"1900\" height=\"350\" fill=\"url(#app-ground-n2xse)\"\/><path d=\"M0 650 H1900\" stroke=\"#7f9ea4\" stroke-width=\"4\"\/>\n<text x=\"60\" y=\"66\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\">N2XSEYBY 6\/10 kV \u2014 fixed-route application architecture<\/text><text x=\"60\" y=\"106\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"18\">Three-core XLPE copper cable with double steel tape armour for residential \/ industrial areas, underground routes and ducts.<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <rect x=\"70\" y=\"220\" width=\"280\" height=\"260\" rx=\"15\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"4\"\/><path d=\"M125 395 V295 H295 V395\" fill=\"none\" stroke=\"#a7bcc2\" stroke-width=\"13\"\/><path d=\"M145 395 H275\" stroke=\"#a7bcc2\" stroke-width=\"13\"\/><circle cx=\"210\" cy=\"285\" r=\"35\" fill=\"#e8c37b\"\/><text x=\"120\" y=\"435\" font-size=\"24\" font-weight=\"700\" fill=\"#55dff7\">MV substation<\/text><text x=\"130\" y=\"467\" font-size=\"17\">6.35\/11 kV feeder<\/text>\n <rect x=\"480\" y=\"220\" width=\"280\" height=\"260\" rx=\"15\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"4\"\/><rect x=\"535\" y=\"285\" width=\"170\" height=\"115\" fill=\"#263941\" stroke=\"#a6c2c7\" stroke-width=\"6\"\/><circle cx=\"570\" cy=\"320\" r=\"10\" fill=\"#62df9c\"\/><circle cx=\"610\" cy=\"320\" r=\"10\" fill=\"#ff777f\"\/><circle cx=\"650\" cy=\"320\" r=\"10\" fill=\"#55dff7\"\/><path d=\"M560 370 H680\" stroke=\"#e8c37b\" stroke-width=\"8\"\/><text x=\"530\" y=\"435\" font-size=\"24\" font-weight=\"700\" fill=\"#62df9c\">Switchgear<\/text><text x=\"527\" y=\"467\" font-size=\"17\">screen \/ armour bond<\/text>\n <rect x=\"890\" y=\"220\" width=\"280\" height=\"260\" rx=\"15\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"4\"\/><path d=\"M945 405 V330 H1115 V405\" fill=\"none\" stroke=\"#e8c37b\" stroke-width=\"10\"\/><path d=\"M960 350 H1100\" stroke=\"#55dff7\" stroke-width=\"8\"\/><path d=\"M960 380 H1100\" stroke=\"#62df9c\" stroke-width=\"8\"\/><text x=\"925\" y=\"435\" font-size=\"24\" font-weight=\"700\" fill=\"#e8c37b\">Duct \/ trench<\/text><text x=\"925\" y=\"467\" font-size=\"17\">drainage + mechanical load<\/text>\n <rect x=\"1300\" y=\"220\" width=\"280\" height=\"260\" rx=\"15\" fill=\"#0b202b\" stroke=\"#aa9bff\" stroke-width=\"4\"\/><path d=\"M1340 400 V300 H1535 V400\" fill=\"none\" stroke=\"#a6c2c7\" stroke-width=\"11\"\/><path d=\"M1380 400 V345 M1440 400 V345 M1500 400 V345\" stroke=\"#55dff7\" stroke-width=\"8\"\/><text x=\"1340\" y=\"435\" font-size=\"24\" font-weight=\"700\" fill=\"#aa9bff\">Industrial load<\/text><text x=\"1340\" y=\"467\" font-size=\"17\">motor \/ transformer \/ process<\/text>\n <path d=\"M350 350 H470 M760 350 H880 M1170 350 H1290\" stroke=\"#dcebf0\" stroke-width=\"5\" marker-end=\"url(#app-arrow-n2xse)\"\/>\n <path d=\"M210 480 V755 H1440 V480\" fill=\"none\" stroke=\"#2f4c59\" stroke-width=\"40\"\/><path d=\"M210 480 V755 H1440 V480\" fill=\"none\" stroke=\"#9ba9ae\" stroke-width=\"5\"\/>\n <text x=\"210\" y=\"835\" fill=\"#ffaaa5\" font-size=\"24\" font-weight=\"700\">N2XSEYBY route: fixed, armoured and supported<\/text><text x=\"210\" y=\"872\" fill=\"#dcebf0\" font-size=\"18\">The published application includes underground and duct routes; no dynamic bend rating is published.<\/text>\n <rect x=\"80\" y=\"900\" width=\"1740\" height=\"68\" rx=\"10\" fill=\"#081b24\" stroke=\"#315b6f\" stroke-width=\"2\"\/><text x=\"110\" y=\"943\" font-size=\"18\" fill=\"#ffaaa5\">Port \/ plant boundary: evaluate as fixed shore-side MV infrastructure only after the route, fire, earthing and mechanical design are approved.<\/text>\n<\/g><\/svg><\/div>\n<div class=\"grid\"><div class=\"box\"><b>Energy-network feeder<\/b><br>The source identifies low dielectric losses and networks with sudden load changes. Final selection still needs conductor area, load profile and protection study.<\/div><div class=\"box\"><b>Underground and ducts<\/b><br>Review pulling route, water exposure, drainage, impact, backfill, duct fill, cable spacing, fire stopping and joint access.<\/div><div class=\"box\"><b>Industrial and port shore-side route<\/b><br>Evaluate fixed substation and plant feeders for mechanical stress, impact, PVC fire behaviour, corrosion, flooding and maintenance access.<\/div><div class=\"box\"><b>Moving crane equipment<\/b><br>This record has no bending factor and is not established as a reeling, festoon, drag-chain or continuous-torsion cable.<\/div><\/div>\n\n<h2>11. Handling and termination<\/h2>\n<div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 1050\" role=\"img\" aria-label=\"N2XSEYBY installation diagram showing drum pay-off, unknown bend factor, steel tape armour, cleats and three-core termination\">\n<defs><marker id=\"inst-arrow-n2xse\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker><linearGradient id=\"inst-floor-n2xse\" x1=\"0\" x2=\"0\" y1=\"0\" y2=\"1\"><stop stop-color=\"#294850\"\/><stop offset=\"1\" stop-color=\"#071820\"\/><\/linearGradient><\/defs>\n<rect width=\"1900\" height=\"1050\" fill=\"#06131b\"\/><rect y=\"675\" width=\"1900\" height=\"375\" fill=\"url(#inst-floor-n2xse)\"\/><path d=\"M0 675 H1900\" stroke=\"#6a888f\" stroke-width=\"4\"\/>\n<text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\">N2XSEYBY installation controls \u2014 no published laying factor<\/text><text x=\"60\" y=\"105\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"18\">The supplied source displays \u201c- (xD)\u201d. A controlled method statement must define the radius, pulling limits and accessory geometry.<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <rect x=\"70\" y=\"255\" width=\"240\" height=\"235\" rx=\"15\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"4\"\/><circle cx=\"190\" cy=\"350\" r=\"70\" fill=\"#364b54\" stroke=\"#c2d0d5\" stroke-width=\"12\"\/><circle cx=\"190\" cy=\"350\" r=\"30\" fill=\"#263941\" stroke=\"#e8c37b\" stroke-width=\"8\"\/><path d=\"M190 280 V420 M120 350 H260\" stroke=\"#a9c1c5\" stroke-width=\"7\"\/><text x=\"115\" y=\"463\" font-size=\"23\" font-weight=\"700\">Drum pay-off<\/text><text x=\"105\" y=\"493\" font-size=\"16\">three-core cable \u00b7 ends sealed<\/text>\n <path d=\"M310 350 C430 350 450 550 590 550\" fill=\"none\" stroke=\"#10171b\" stroke-width=\"65\"\/><path d=\"M310 350 C430 350 450 550 590 550\" fill=\"none\" stroke=\"#63737a\" stroke-width=\"48\"\/><path d=\"M310 350 C430 350 450 550 590 550\" fill=\"none\" stroke=\"#dce5e8\" stroke-width=\"4\"\/>\n <path d=\"M345 190 H640\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#inst-arrow-n2xse)\"\/><text x=\"78\" y=\"165\" font-size=\"22\" font-weight=\"700\" fill=\"#e8c37b\">Controlled pulling direction<\/text><text x=\"78\" y=\"199\" font-size=\"17\">Do not assume a pulling load or radius from another cable family.<\/text>\n <rect x=\"590\" y=\"500\" width=\"380\" height=\"95\" rx=\"12\" fill=\"#263941\" stroke=\"#9eb7bd\" stroke-width=\"5\"\/><path d=\"M670 547 H890\" stroke=\"#d0d8dc\" stroke-width=\"14\"\/><text x=\"630\" y=\"685\" font-size=\"23\" font-weight=\"700\">Cleat \/ support<\/text><text x=\"630\" y=\"717\" font-size=\"17\">protect the steel tapes and PVC sheath<\/text>\n <path d=\"M970 550 H1100\" stroke=\"#63737a\" stroke-width=\"48\"\/><path d=\"M970 550 H1100\" stroke=\"#dcebf0\" stroke-width=\"3\" marker-end=\"url(#inst-arrow-n2xse)\"\/><rect x=\"1100\" y=\"390\" width=\"330\" height=\"305\" rx=\"15\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"4\"\/><rect x=\"1170\" y=\"475\" width=\"190\" height=\"115\" fill=\"#263941\" stroke=\"#a6c2c7\" stroke-width=\"6\"\/><circle cx=\"1210\" cy=\"520\" r=\"14\" fill=\"#be6c31\"\/><circle cx=\"1270\" cy=\"520\" r=\"14\" fill=\"#be6c31\"\/><circle cx=\"1330\" cy=\"520\" r=\"14\" fill=\"#be6c31\"\/><path d=\"M1190 555 H1340\" stroke=\"#55dff7\" stroke-width=\"7\"\/><text x=\"1145\" y=\"650\" font-size=\"23\" font-weight=\"700\">Three-core termination<\/text><text x=\"1145\" y=\"682\" font-size=\"17\">phase \/ screen \/ armour record<\/text>\n <rect x=\"330\" y=\"805\" width=\"640\" height=\"105\" rx=\"12\" fill=\"#241419\" stroke=\"#ff777f\" stroke-width=\"4\"\/><text x=\"370\" y=\"850\" font-size=\"23\" font-weight=\"700\" fill=\"#ffaaa5\">Bending factor: – (xD)<\/text><text x=\"370\" y=\"883\" font-size=\"18\">No numerical minimum radius can be derived from the source.<\/text>\n <path d=\"M1430 550 H1780\" stroke=\"#62df9c\" stroke-width=\"4\"\/><text x=\"1470\" y=\"465\" font-size=\"23\" font-weight=\"700\" fill=\"#62df9c\">Acceptance checks<\/text><text x=\"1470\" y=\"505\" font-size=\"17\">document revision<\/text><text x=\"1470\" y=\"535\" font-size=\"17\">outer sheath \/ armour inspection<\/text><text x=\"1470\" y=\"565\" font-size=\"17\">screen continuity<\/text><text x=\"1470\" y=\"595\" font-size=\"17\">phase identification<\/text><text x=\"1470\" y=\"625\" font-size=\"17\">short-circuit design<\/text><text x=\"1470\" y=\"655\" font-size=\"17\">termination compatibility<\/text>\n <rect x=\"80\" y=\"955\" width=\"1740\" height=\"58\" rx=\"10\" fill=\"#081b24\" stroke=\"#315b6f\" stroke-width=\"2\"\/><text x=\"110\" y=\"991\" font-size=\"18\" fill=\"#ffaaa5\">No published service temperature: do not commission a continuous-load calculation until the current controlled data sheet closes the blank field.<\/text>\n<\/g><\/svg><\/div>\n<ol><li>Confirm the exact product code, current source revision, cable length, conductor area, outside diameter, mass and end seals before unloading.<\/li><li>Do not use a calculated bend radius: the source states <code>- (xD)<\/code>. Obtain the controlled installation factor and accessory method statement before laying.<\/li><li>Align the drum and pay off in the marked direction. Prevent reverse winding, flange impact, uncontrolled twist and local PVC sheath damage.<\/li><li>Use controlled rollers and pulling equipment. Verify pulling load, sidewall pressure, support spacing, trench entry, duct entry and armour loading.<\/li><li>Prepare the three-core termination with the correct phase identification, screen continuity, PVC separation, steel tape armour treatment and gland \/ accessory dimensions.<\/li><li>Bond the metallic screen and armour according to the approved earthing design. Record continuity, torque, phase identity and test results.<\/li><li>Before energisation, complete conductor resistance, screen continuity, insulation \/ sheath tests, MV withstand or partial-discharge tests where specified, phase identification, accessory inspection and as-built records.<\/li><\/ol>\n<div class=\"warn\"><b>Installation release:<\/b> no minimum radius, conductor service temperature or conductor size should appear in a Feichun installation method statement until the current controlled data sheet closes the dash fields.<\/div>\n\n<h2>12. Selection comparison for engineers<\/h2>\n<div class=\"scroll\"><table><thead><tr><th>Requirement<\/th><th>N2XSEYBY reference<\/th><th>What must be verified<\/th><th>Engineering decision<\/th><\/tr><\/thead><tbody><tr><td class=\"key\">Three-phase fixed MV feeder<\/td><td>Three-core copper \/ XLPE construction; 6.35\/11 kV Uo\/U.<\/td><td>Conductor area, current rating, voltage drop, fault duty, termination and phase identification.<\/td><td class=\"source\">Potentially suitable after data release.<\/td><\/tr><tr><td class=\"key\">Mechanically exposed fixed route<\/td><td>Good impact resistance; double steel tape armour.<\/td><td>Impact level, compression, armour overlap, pulling load, support and trench \/ duct entry.<\/td><td class=\"source\">Candidate subject to mechanical design.<\/td><\/tr><tr><td class=\"key\">Underground \/ duct route<\/td><td>Application listed by the source.<\/td><td>Water exposure, drainage, soil thermal resistance, duct fill, fire stopping and joint access.<\/td><td class=\"source\">Confirm route construction.<\/td><\/tr><tr><td class=\"key\">Fire-sensitive building or tunnel<\/td><td>IEC 60332-1-2 listed; PVC sheath system.<\/td><td>Current fire declaration, smoke \/ corrosive gas evidence, grouping and local requirements.<\/td><td class=\"source\">Do not assume LSZH or CPR class.<\/td><\/tr><tr><td class=\"key\">Continuous current sizing<\/td><td>Conductor cross-section and service maximum temperature are \u201c-\u201d.<\/td><td>All thermal and voltage-drop inputs are incomplete.<\/td><td class=\"warn\">Stop until data is published.<\/td><\/tr><tr><td class=\"key\">Reeling \/ festoon \/ drag chain<\/td><td>No bending factor; fixed-route application wording.<\/td><td>Cycles, torsion, speed, acceleration, rollers and dynamic bend radius.<\/td><td class=\"warn\">Select a dedicated dynamic cable family.<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 920\" role=\"img\" aria-label=\"N2XSEYBY engineering selection flow for three-core IEC 60502-2 cable with PVC sheath and steel tape armour\">\n<defs><marker id=\"sel-arrow-n2xse\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"4\" orient=\"auto\"><path d=\"M0 0 L12 4 L0 8 Z\" fill=\"#dcebf0\"\/><\/marker><\/defs>\n<rect width=\"1900\" height=\"920\" fill=\"#06131b\"\/><text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"36\" font-weight=\"700\">N2XSEYBY release gate \u2014 do not select around blank fields<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6fa\">\n <rect x=\"60\" y=\"220\" width=\"270\" height=\"190\" rx=\"14\" fill=\"#0b202b\" stroke=\"#55dff7\" stroke-width=\"4\"\/><text x=\"112\" y=\"280\" font-size=\"24\" font-weight=\"700\">1. System basis<\/text><text x=\"112\" y=\"320\" font-size=\"18\">6.35\/11 kV<\/text><text x=\"112\" y=\"353\" font-size=\"18\">three-core feeder<\/text><text x=\"112\" y=\"386\" font-size=\"18\">load \/ fault \/ route<\/text><path d=\"M330 315 H445\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-arrow-n2xse)\"\/>\n <rect x=\"445\" y=\"170\" width=\"310\" height=\"290\" rx=\"14\" fill=\"#0b202b\" stroke=\"#e8c37b\" stroke-width=\"4\"\/><text x=\"505\" y=\"235\" font-size=\"24\" font-weight=\"700\" fill=\"#e8c37b\">2. Cable build<\/text><text x=\"505\" y=\"280\" font-size=\"18\">Cu \/ XLPE \/ Cu screen<\/text><text x=\"505\" y=\"315\" font-size=\"18\">PVC filler \/ sheath<\/text><text x=\"505\" y=\"350\" font-size=\"18\">double steel tapes<\/text><text x=\"505\" y=\"385\" font-size=\"18\">PVC outer sheath<\/text><text x=\"505\" y=\"430\" font-size=\"16\" fill=\"#ffaaa5\">No conductor area supplied<\/text><path d=\"M755 315 H870\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-arrow-n2xse)\"\/>\n <rect x=\"870\" y=\"170\" width=\"310\" height=\"290\" rx=\"14\" fill=\"#0b202b\" stroke=\"#ff777f\" stroke-width=\"4\"\/><text x=\"930\" y=\"235\" font-size=\"24\" font-weight=\"700\" fill=\"#ffaaa5\">3. Blank-field gate<\/text><text x=\"930\" y=\"280\" font-size=\"18\">bend factor: – (xD)<\/text><text x=\"930\" y=\"315\" font-size=\"18\">service temp.: – \u00b0C<\/text><text x=\"930\" y=\"350\" font-size=\"18\">cross-section: – mm\u00b2<\/text><text x=\"930\" y=\"385\" font-size=\"18\">ratings: not supplied<\/text><text x=\"930\" y=\"430\" font-size=\"16\" fill=\"#ffaaa5\">stop and request data<\/text><path d=\"M1180 315 H1295\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-arrow-n2xse)\"\/>\n <rect x=\"1295\" y=\"170\" width=\"310\" height=\"290\" rx=\"14\" fill=\"#0b202b\" stroke=\"#62df9c\" stroke-width=\"4\"\/><text x=\"1350\" y=\"235\" font-size=\"24\" font-weight=\"700\" fill=\"#62df9c\">4. Route review<\/text><text x=\"1350\" y=\"280\" font-size=\"18\">underground \/ duct<\/text><text x=\"1350\" y=\"315\" font-size=\"18\">mechanical stress<\/text><text x=\"1350\" y=\"350\" font-size=\"18\">PVC fire behaviour<\/text><text x=\"1350\" y=\"385\" font-size=\"18\">earthing \/ screen<\/text><text x=\"1350\" y=\"420\" font-size=\"18\">accessories<\/text><path d=\"M1605 315 H1720\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-arrow-n2xse)\"\/>\n <rect x=\"1720\" y=\"170\" width=\"120\" height=\"290\" rx=\"14\" fill=\"#0b202b\" stroke=\"#aa9bff\" stroke-width=\"4\"\/><text x=\"1740\" y=\"235\" font-size=\"21\" font-weight=\"700\" fill=\"#aa9bff\">5. Release<\/text><text x=\"1740\" y=\"280\" font-size=\"16\">data<\/text><text x=\"1740\" y=\"315\" font-size=\"16\">tests<\/text><text x=\"1740\" y=\"350\" font-size=\"16\">kits<\/text><text x=\"1740\" y=\"385\" font-size=\"16\">records<\/text>\n <path d=\"M1025 460 V610\" stroke=\"#dcebf0\" stroke-width=\"4\" marker-end=\"url(#sel-arrow-n2xse)\"\/><rect x=\"675\" y=\"610\" width=\"690\" height=\"180\" rx=\"14\" fill=\"#081b24\" stroke=\"#55dff7\" stroke-width=\"4\"\/><text x=\"755\" y=\"670\" font-size=\"25\" font-weight=\"700\" fill=\"#55dff7\">6. Verify before energisation<\/text><text x=\"755\" y=\"712\" font-size=\"18\">IEC 60502-2 basis \u00b7 phase ID \u00b7 screen continuity<\/text><text x=\"755\" y=\"745\" font-size=\"18\">short-circuit I\u00b2t \u00b7 insulation \/ sheath tests \u00b7 fire record<\/text>\n <path d=\"M675 700 H410\" stroke=\"#ff777f\" stroke-width=\"4\" marker-end=\"url(#sel-arrow-n2xse)\"\/><rect x=\"70\" y=\"610\" width=\"340\" height=\"180\" rx=\"14\" fill=\"#081b24\" stroke=\"#ff777f\" stroke-width=\"4\"\/><text x=\"115\" y=\"670\" font-size=\"24\" font-weight=\"700\" fill=\"#ffaaa5\">If movement is required<\/text><text x=\"115\" y=\"710\" font-size=\"18\">reel \/ festoon \/ drag chain<\/text><text x=\"115\" y=\"745\" font-size=\"18\">select dynamic cable family<\/text>\n <text x=\"1400\" y=\"625\" font-size=\"18\" fill=\"#ffaaa5\">Do not fill a dash<\/text><text x=\"1400\" y=\"658\" font-size=\"18\" fill=\"#ffaaa5\">from another cable.<\/text>\n<\/g><\/svg><\/div>\n\n<h2>13. Failure mode and effects analysis<\/h2>\n<div class=\"grid\"><div class=\"warn\"><b>Wrong conductor size:<\/b> the cable is ordered without resolving the \u201c- mm\u00b2\u201d field, making ampacity, voltage drop and accessory selection impossible.<\/div><div class=\"warn\"><b>Radius assumption:<\/b> a 15\u00d7D or 12\u00d7D value from another cable is copied even though this record states \u201c- (xD)\u201d.<\/div><div class=\"warn\"><b>Continuous temperature substitution:<\/b> 90 \u00b0C from another XLPE family is treated as the N2XSEYBY service limit.<\/div><div class=\"warn\"><b>Screen fault path:<\/b> copper screen and steel tape armour are assumed to carry a known earth-fault current without a section or bonding study.<\/div><div class=\"warn\"><b>Fire-class substitution:<\/b> IEC 60332-1-2 is treated as proof of Dca, Cca, Eca, LSZH or halogen-free performance.<\/div><div class=\"warn\"><b>Armour damage:<\/b> incorrect rollers, pulling or trench entries deform the double steel tapes or PVC sheath.<\/div><div class=\"warn\"><b>Revision confusion:<\/b> the supplied 8\/4\/26 source record and the live PDF\u2019s 7\/8\/26 metadata are merged without verifying which controlled document governs.<\/div><div class=\"warn\"><b>Dynamic misuse:<\/b> the fixed-installation cable is placed in reeling, festoon or energy-chain service without a dynamic qualification.<\/div><\/div>\n\n<h2>14. Feichun Cable certification and project assurance<\/h2>\n<div class=\"note\"><b>Engineered for maximum safety in demanding environments<\/b>, Feichun Cable cable systems comply with global standards including <b>ATEX, IECEx, VDE, CE, UKCA, EAC, and the Russian Fire Safety Certificate<\/b>. 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>\n<div class=\"grid\"><div class=\"box\"><b>For a Feichun N2XSEYBY release<\/b><br>Confirm conductor area, conductor flexibility, outer diameter, mass, DCR, current rating, voltage-drop data, screen section, screen \/ armour fault duty, bending factor, service conductor temperature, fire classification and accessory compatibility.<\/div><div class=\"box\"><b>Certification is configuration-specific<\/b><br>Certification capability does not make every N2XSEYBY size automatically IEC 60502-2, IECEx, ATEX, EAC or fire-certified. The exact three-core construction and documentation must match.<\/div><div class=\"box\"><b>Three-core armour dossier<\/b><br>The controlled release should identify screen geometry, PVC filler, separation sheath, double steel tape dimensions and overlap, armour treatment, glands, termination preparation and earthing method.<\/div><div class=\"box\"><b>Feichun engineering value<\/b><br>Feichun can develop the three-core XLPE \/ copper-screen \/ PVC \/ double-steel-tape architecture around the actual conductor size, route mechanics, protection system and market documentation instead of copying an incomplete reference label.<\/div><\/div>\n<div class=\"warn\"><b>Release condition:<\/b> this article does not invent a Feichun certificate number, conductor cross-section, current rating, radius, service temperature, screen fault current, fire class or product-specific test report.<\/div>\n\n<h2>15. Source and revision audit<\/h2>\n<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:\/\/www.nexans.com.tr\/en\/products\/xlpe-insulated-medium-voltage\/copper-conductor\/N2XSEYBY-636580.html\" target=\"_blank\" rel=\"nofollow noopener\">Nexans T\u00fcrkiye N2XSEYBY 6\/10 kV family page<\/a><\/td><td>Product title, IEC 60502-2 listing, application, construction, three-core field, voltage, impact, operating range, dash fields and IEC 60332-1-2.<\/td><td>Manufacturer family reference; confirm current revision and exact ordered product.<\/td><\/tr><tr><td><a href=\"https:\/\/www.nexans.com.tr\/.rest\/catalog\/v1\/family\/pdf\/36580\/N2XSEYBY-6-10-kV\" target=\"_blank\" rel=\"nofollow noopener\">Nexans N2XSEYBY two-page family PDF<\/a><\/td><td>Page-1 construction and page-2 characteristics, including 250 \u00b0C short-circuit conductor temperature and dash fields.<\/td><td>Live PDF checked online shows generated date 7\/8\/26; the user-supplied copy states 8\/4\/26. Keep the records separate.<\/td><\/tr><tr><td><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/95394\" target=\"_blank\" rel=\"nofollow noopener\">IEC 60502-2 official consolidated publication record<\/a><\/td><td>Standard scope for extruded-insulation cables from 6 kV up to 30 kV in fixed installations.<\/td><td>Confirm adopted edition and the exact Feichun conformity route.<\/td><\/tr><tr><td><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/80873\" target=\"_blank\" rel=\"nofollow noopener\">IEC 60332-1-2:2025 official publication record<\/a><\/td><td>Current IEC description of the single insulated wire or cable vertical flame-propagation test using a 1 kW pre-mixed flame.<\/td><td>The source gives the standard number without an edition; product documentation controls the applicable edition.<\/td><\/tr><tr><td>User-supplied source record<\/td><td>All supplied N2XSEYBY values, construction sequence, source metadata and page labels reproduced in this article.<\/td><td>Preserved; missing or dashed fields are not filled from another cable.<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"warn\">This article is for preliminary engineering, technical search and comparison. The final Feichun N2XSEYBY 6\/10 kV release must be checked against the current product data sheet, IEC 60502-2 basis, conductor size, current ratings, bending instructions, screen \/ armour design, fire documentation, accessories, installation method and local authority requirements.<\/div>\n<\/main>\n<footer><div class=\"wrap\"><h3>Feichun Cable \u2014 N2XSEYBY 6\/10 kV 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 separates supplied values, official source additions, blank fields and Feichun project-confirmation values. Missing fields are not filled from another supplier or cable size.<\/p><div>FEICHUN-N2XSEYBY-6-10KV-ENGINEERING-EN \u00b7 03 August 2026<\/div><\/div><\/footer>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"A full-English engineering guide to the N2XSEYBY three-core medium-voltage cable construction: copper conductors, semiconducting screens, XLPE insulation, copper wires or tapes, PVC filler, PVC separation sheath, double steel tape armour and PVC outer sheath. The article also identifies every field that the supplied record leaves blank.","protected":false},"author":1,"featured_media":25217,"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],"tags":[16,111,17],"class_list":["post-25216","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-uncategorized","category-reeling-cable","tag-din-vde-0250","tag-mining-cable","tag-reeling-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25216","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=25216"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25216\/revisions"}],"predecessor-version":[{"id":25221,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25216\/revisions\/25221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/25217"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=25216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=25216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=25216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}