{"id":77216,"date":"2026-09-20T14:50:40","date_gmt":"2026-09-20T06:50:40","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=77216"},"modified":"2026-09-20T14:50:44","modified_gmt":"2026-09-20T06:50:44","slug":"opvc-jz-oz-ysy-300-500-v-and-opvc-jb-ob-ysy-0-6-1-kv-triple-protected-pvc-cable","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/opvc-jz-oz-ysy-300-500-v-and-opvc-jb-ob-ysy-0-6-1-kv-triple-protected-pvc-cable\/","title":{"rendered":"\u00d6PVC-JZ\/OZ-YSY 300\/500 V and \u00d6PVC-JB\/OB-YSY 0.6\/1 kV: triple-protected PVC cable"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">An engineering guide to the YSY construction: PVC inner sheath, oxidation-protected galvanised steel-wire braid and transparent PVC outer sheath \u2014 high resistance to transverse crushing and impact, plus a magnetically effective screen.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"1d2b2d\" data-has-transparency=\"false\" style=\"--dominant-color: #1d2b2d;\" loading=\"lazy\" decoding=\"async\" width=\"855\" height=\"510\" sizes=\"auto, (max-width: 855px) 100vw, 855px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944.avif\" alt=\"\" class=\"wp-image-77217 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944.avif 855w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944-300x179.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944-768x458.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944-399x238.avif 399w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944-800x477.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1944-832x496.avif 832w\" \/><\/figure>\n\n\n\n<!DOCTYPE html><html lang=\"en-AU\"><head><meta charset=\"utf-8\"><meta name=\"viewport\" content=\"width=device-width,initial-scale=1\">\n<meta name=\"description\" content=\"FeiChun engineering guide: \u00d6PVC-JZ\/OZ-YSY 300\/500 V and \u00d6PVC-JB\/OB-YSY 0.6\/1 kV steel-wire-braided PVC cable, triple mechanical protection, magnetic screening, 0.5\u201395 mm\u00b2, full dimension tables.\">\n<meta name=\"keywords\" content=\"\u00d6PVC-JZ-YSY, \u00d6PVC-JB-YSY, YSY cable, steel wire braid cable, armoured control cable, magnetic shielding cable, EN 50525-2-51, FeiChun\">\n<title>\u00d6PVC-JZ\/OZ-YSY and JB\/OB-YSY steel-braided control and power cable | FeiChun Cable<\/title><style>\n:root{--bg:#041018;--p:#0b202b;--p2:#123443;--ink:#f4f9fb;--muted:#b8ccd3;--line:#315b6f;--c:#55dff7;--g:#62df9c;--s:#e8c37b;--r:#ff777f;--v:#aa9bff}\n*{box-sizing:border-box}html{scroll-behavior:smooth}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:68px 0 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solid var(--r);margin:13px 0}.toc{background:var(--p);border:1px solid var(--line);padding:20px;border-left:7px solid var(--c);margin-top:24px}.toc ol{columns:2;margin-top:8px}.scroll{overflow:auto;margin:18px 0}table{width:100%;border-collapse:collapse;background:#071821;min-width:1180px}caption{text-align:left;color:var(--s);font-weight:bold;padding:8px 0}th,td{border:1px solid var(--line);padding:8px 9px;vertical-align:top}th{background:var(--p2);color:#eaf6fa;position:sticky;top:0}td:first-child{color:var(--c);font-weight:bold}.formula{white-space:pre-line;background:#071821;border:1px solid var(--line);padding:17px;border-radius:8px;font-family:Consolas,monospace}.svg{border:1px solid var(--line);padding:10px;background:#071821;margin:22px 0;border-radius:8px}.svg svg{width:100%;height:auto;display:block}.svg-caption{color:var(--muted);font-size:14px;padding:8px 4px 2px}.contact{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}.contact div{background:#071821;border:1px solid var(--line);padding:15px}.small{font-size:12px;color:#91a9b4}.tag{color:var(--s);font-weight:bold}.ok{color:var(--g);font-weight:bold}.danger{color:var(--r);font-weight:bold}code{color:var(--s)}footer{margin-top:50px;background:#02080c;padding:32px 0}@media(max-width:800px){h1{font-size:31px}.toc ol{columns:1}.contact{grid-template-columns:1fr}.wrap{padding:0 16px}.lead{font-size:18px}}\n@media print{body{background:#fff;color:#000}.hero,footer{background:#fff}}\n<\/style>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"TechArticle\",\"headline\":\"\u00d6PVC-YSY steel-wire-braided cable: engineering guide\",\"inLanguage\":\"en-AU\",\"identifier\":\"FC-ART-YSY-2026-23B8\",\"author\":{\"@type\":\"Organization\",\"name\":\"Anhui Feichun Special Cable Co., Ltd.\"},\"dateModified\":\"2026-09-20\"}<\/script><\/head><body>\n<header class=\"hero\"><div class=\"wrap\"><div class=\"tag\">FEICHUN CABLE \u00b7 STEEL-WIRE-BRAIDED CONTROL AND POWER CABLE<\/div>\n<h1>\u00d6PVC-JZ\/OZ-YSY 300\/500 V and \u00d6PVC-JB\/OB-YSY 0.6\/1 kV: triple-protected PVC cable<\/h1>\n<p class=\"lead\">An engineering guide to the YSY construction: PVC inner sheath, oxidation-protected galvanised steel-wire braid and transparent PVC outer sheath \u2014 high resistance to transverse crushing and impact, plus a magnetically effective screen.<\/p>\n<div class=\"badges\"><span>Similar to EN 50525-2-51<\/span><span>IEC 60228 class 5<\/span><span>IEC 60332-1<\/span><span>300\/500 V \u00b7 0.6\/1 kV<\/span><span>Test voltage 4 kV<\/span><span>Galvanised steel braid<\/span><span>\u221230\u2026+80 \u00b0C fixed<\/span><span>RoHS \u00b7 CE<\/span><\/div>\n<div class=\"meta\"><span>Document FC-ART-YSY-2026-23B8<\/span><span>Updated: 20 September 2026<\/span><span>FeiChun Cable \/ \u98de\u7eaf\u7535\u7f06<\/span><\/div><\/div><\/header>\n<main class=\"wrap\">\n<div class=\"warn\"><strong>Engineer&#8217;s summary:<\/strong> YSY replaces the copper braid of YCY with galvanised steel wire. You gain mechanical armour and low-frequency magnetic screening; you do not gain high-frequency EMC performance comparable to copper, tensile capacity or burial suitability. Store drums dry.<\/div>\n<nav class=\"toc\"><strong>Contents<\/strong><ol><li><a href=\"#designation\">Reading the designation<\/a><\/li><li><a href=\"#construction\">Construction<\/a><\/li><li><a href=\"#data\">Technical data<\/a><\/li><li><a href=\"#emc\">Steel vs. copper braid<\/a><\/li><li><a href=\"#tables\">Full dimension tables<\/a><\/li><li><a href=\"#application\">Application envelope<\/a><\/li><li><a href=\"#compare\">Comparison<\/a><\/li><li><a href=\"#design\">Design calculations<\/a><\/li><li><a href=\"#quality\">Certification<\/a><\/li><li><a href=\"#faq\">FAQ<\/a><\/li><\/ol><\/nav>\n<section id=\"designation\"><h2>1. Reading the designation<\/h2><p><code>Y-S-Y<\/code> = PVC inner sheath, steel-wire braid (S = Stahl), PVC outer sheath. <code>JZ\/OZ<\/code> = numbered black cores, 300\/500 V, up to 16 mm\u00b2; <code>JB\/OB<\/code> = coloured cores, 0.6\/1 kV with 1 kV insulation walls, from 25 mm\u00b2. J = with GNYE (\u2018G\u2019), O = without (\u2018x\u2019).<\/p>\n<div class=\"cards\"><div class=\"card\"><div class=\"value\">61<\/div><p>Standard constructions, 2 \u00d7 0.5 to 4 G 95 mm\u00b2.<\/p><\/div><div class=\"card\"><div class=\"value\">3\u00d7<\/div><p>Protection layers: inner sheath, steel braid, outer sheath.<\/p><\/div><div class=\"card\"><div class=\"value\">4 kV<\/div><p>Test voltage.<\/p><\/div><div class=\"card\"><div class=\"value\">0.6\/1 kV<\/div><p>JB\/OB from 25 mm\u00b2.<\/p><\/div><\/div><\/section>\n<section id=\"construction\"><h2>2. Construction<\/h2><p>The inner sheath is essential here: galvanised steel wires are hard and, without a cushion, would press into the core insulation under load. The transparent outer sheath lets the installer inspect the braid for corrosion or damage.<\/p><div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 960\" role=\"img\" aria-label=\"JZ cross section\"><rect width=\"100%\" height=\"100%\" fill=\"#06131b\"><\/rect><defs><radialGradient id=\"cu\" cx=\"40%\" cy=\"35%\" r=\"70%\"><stop offset=\"0\" stop-color=\"#ffd2a1\"\/><stop offset=\".55\" stop-color=\"#c9793d\"\/><stop offset=\"1\" stop-color=\"#7a3f19\"\/><\/radialGradient><pattern id=\"h45\" width=\"12\" height=\"12\" patternUnits=\"userSpaceOnUse\" patternTransform=\"rotate(45)\"><rect width=\"12\" height=\"12\" fill=\"#cfe7ef\" opacity=\".25\"\/><line x1=\"0\" y1=\"0\" x2=\"0\" y2=\"12\" stroke=\"#9fd3e3\" stroke-width=\"2.5\"\/><\/pattern><pattern id=\"brd\" width=\"16\" height=\"16\" patternUnits=\"userSpaceOnUse\"><rect width=\"16\" height=\"16\" fill=\"#4d5a61\"\/><path d=\"M0 0L16 16M16 0L0 16\" stroke=\"#b9c6cc\" stroke-width=\"3.2\"\/><\/pattern><pattern id=\"xh\" width=\"12\" height=\"12\" patternUnits=\"userSpaceOnUse\"><rect width=\"12\" height=\"12\" fill=\"#3a4d55\"\/><path d=\"M0 0L12 12M12 0L0 12\" stroke=\"#6f8c96\" stroke-width=\"1.4\"\/><\/pattern><marker id=\"ar\" markerWidth=\"12\" markerHeight=\"12\" refX=\"10\" refY=\"5\" orient=\"auto\"><path d=\"M0 0L12 5L0 10Z\" fill=\"#eaf6fa\"\/><\/marker><marker id=\"al\" markerWidth=\"12\" markerHeight=\"12\" refX=\"2\" refY=\"5\" orient=\"auto\"><path d=\"M12 0L0 5L12 10Z\" fill=\"#eaf6fa\"\/><\/marker><\/defs><text x=\"65\" y=\"70\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"40\" font-weight=\"700\">Cross-section \u00d6PVC-JZ-YSY 7 G \u00b7 inner sheath + galvanised steel-wire braid<\/text><text x=\"65\" y=\"108\" fill=\"#b8ccd3\" font-family=\"Arial\" font-size=\"19\">Engineering-drawing style \u00b7 functional, not to scale \u00b7 final dimensions per approved order drawing<\/text><circle cx=\"520\" cy=\"540\" r=\"340\" fill=\"url(#h45)\" stroke=\"#9aa6ab\" stroke-width=\"5\"\/><circle cx=\"520\" cy=\"540\" r=\"318\" fill=\"url(#brd)\" stroke=\"#d9edf0\" stroke-width=\"3\"\/><circle cx=\"520\" cy=\"540\" r=\"300\" fill=\"#1f5a45\" stroke=\"#62df9c\" stroke-width=\"4\"\/><circle cx=\"520\" cy=\"540\" r=\"296\" fill=\"url(#xh)\"\/><circle cx=\"520\" cy=\"540\" r=\"300\" fill=\"none\" stroke=\"#62df9c\" stroke-width=\"30\" opacity=\".85\"\/><circle cx=\"520\" cy=\"540\" r=\"96\" fill=\"#6bbf3a\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><path d=\"M424 540A96 96 0 0 1 616 540\" stroke=\"#f0d000\" stroke-width=\"28\" fill=\"none\"\/><circle cx=\"520\" cy=\"540\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"520\" y=\"622\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"18\" font-weight=\"700\" fill=\"#ffffff\">GNYE<\/text><circle cx=\"520\" cy=\"344\" r=\"96\" fill=\"#141414\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><circle cx=\"520\" cy=\"344\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"520\" y=\"426\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"22\" font-weight=\"700\" fill=\"#ffffff\">1<\/text><circle cx=\"690\" cy=\"442\" r=\"96\" fill=\"#141414\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><circle cx=\"690\" cy=\"442\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"690\" y=\"524\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"22\" font-weight=\"700\" fill=\"#ffffff\">2<\/text><circle cx=\"690\" cy=\"638\" r=\"96\" fill=\"#141414\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><circle cx=\"690\" cy=\"638\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"690\" y=\"720\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"22\" font-weight=\"700\" fill=\"#ffffff\">3<\/text><circle cx=\"520\" cy=\"736\" r=\"96\" fill=\"#141414\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><circle cx=\"520\" cy=\"736\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"520\" y=\"818\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"22\" font-weight=\"700\" fill=\"#ffffff\">4<\/text><circle cx=\"350\" cy=\"638\" r=\"96\" fill=\"#141414\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><circle cx=\"350\" cy=\"638\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"350\" y=\"720\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"22\" font-weight=\"700\" fill=\"#ffffff\">5<\/text><circle cx=\"350\" cy=\"442\" r=\"96\" fill=\"#141414\" stroke=\"#0a0a0a\" stroke-width=\"3\"\/><circle cx=\"350\" cy=\"442\" r=\"58\" fill=\"url(#cu)\"\/><text x=\"350\" y=\"524\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"22\" font-weight=\"700\" fill=\"#ffffff\">6<\/text><path d=\"M130 540H910M520 150V930\" stroke=\"#ff777f\" stroke-width=\"2\" stroke-dasharray=\"26 8 4 8\"\/><path d=\"M180 935H860\" stroke=\"#eaf6fa\" stroke-width=\"2.5\" marker-start=\"url(#al)\" marker-end=\"url(#ar)\"\/><path d=\"M180 540V950M860 540V950\" stroke=\"#eaf6fa\" stroke-width=\"1.4\" stroke-dasharray=\"6 6\"\/><text x=\"520\" y=\"923\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"23\" fill=\"#eaf6fa\">\u00d8 d = 7.2 \u2026 50.4 mm (see tables)<\/text><path d=\"M520 344L990 192H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"192\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"199\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">1<\/text><text x=\"1078\" y=\"200\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">Bare Cu strand, IEC 60228 class 5<\/text><path d=\"M690 442L990 264H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"264\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"271\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">2<\/text><text x=\"1078\" y=\"272\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">PVC core insulation, black<\/text><path d=\"M690 720L990 336H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"336\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"343\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">3<\/text><text x=\"1078\" y=\"344\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">White numerals (DIN VDE 0293)<\/text><path d=\"M520 540L990 408H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"408\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"415\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">4<\/text><text x=\"1078\" y=\"416\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">GNYE protective conductor (JZ)<\/text><path d=\"M800 450L990 480H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"480\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"487\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">5<\/text><text x=\"1078\" y=\"488\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">PVC inner sheath<\/text><path d=\"M820 640L990 552H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"552\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"559\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">6<\/text><text x=\"1078\" y=\"560\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">Galvanised steel-wire braid (magnetic + mechanical)<\/text><path d=\"M770 770L990 624H1030\" stroke=\"#d9edf0\" stroke-width=\"1.8\" fill=\"none\"\/><circle cx=\"1048\" cy=\"624\" r=\"17\" fill=\"#0c2630\" stroke=\"#55dff7\" stroke-width=\"2\"\/><text x=\"1048\" y=\"631\" text-anchor=\"middle\" font-family=\"Arial\" font-size=\"17\" font-weight=\"700\" fill=\"#55dff7\">7<\/text><text x=\"1078\" y=\"632\" font-family=\"Arial\" font-size=\"21\" fill=\"#eaf6fa\">Transparent PVC outer sheath<\/text><rect x=\"990\" y=\"760\" width=\"840\" height=\"120\" fill=\"#071821\" stroke=\"#315b6f\"\/><path d=\"M990 800H1830M1390 760V880M1620 760V880\" stroke=\"#315b6f\"\/><g font-family=\"Arial\" font-size=\"17\" fill=\"#b8ccd3\"><text x=\"1005\" y=\"788\">Document<\/text><text x=\"1405\" y=\"788\">Revision<\/text><text x=\"1635\" y=\"788\">Projection<\/text><text x=\"1005\" y=\"845\" fill=\"#eaf6fa\" font-size=\"21\" font-weight=\"700\">FC-ART-YSY-2026-23B8<\/text><text x=\"1405\" y=\"845\" fill=\"#eaf6fa\" font-size=\"21\">A \u00b7 2026-09<\/text><text x=\"1635\" y=\"845\" fill=\"#eaf6fa\" font-size=\"21\">1st angle<\/text><\/g><\/svg><div class=\"svg-caption\">Figure 1: Construction of the 7 G version; callouts match the Pos. column of the materials table.<\/div><\/div>\n<div class=\"scroll\"><table style=\"min-width:1180px\"><caption>Materials table (Pos. = callout numbers in Figure 1)<\/caption><thead><tr><th>Pos.<\/th><th>Element<\/th><th>Material \/ form<\/th><th>Engineering function<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>Conductor<\/td><td>Bare Cu, fine-wire, IEC 60228 cl. 5<\/td><td>Flexibility for installation and free movement<\/td><\/tr><tr><td>2<\/td><td>Core insulation<\/td><td>PVC; 1 kV wall thickness on JB\/OB 0.6\/1 kV<\/td><td>+70 \u00b0C continuous, +150 \u00b0C short-circuit<\/td><\/tr><tr><td>3<\/td><td>Core identification<\/td><td>JZ\/OZ: black with white numerals; JB\/OB: coloured (\u22645 cores DIN VDE 0293-308)<\/td><td>Numbered for control, coloured for power<\/td><\/tr><tr><td>4<\/td><td>Protective conductor<\/td><td>GNYE core in \u2018G\u2019 versions<\/td><td>OZ\/OB versions have none<\/td><\/tr><tr><td>5<\/td><td>Inner sheath<\/td><td>PVC<\/td><td>Protection layer 1: cushions the cores under the steel braid<\/td><\/tr><tr><td>6<\/td><td>Braid<\/td><td>Galvanised steel wire, oxidation-protected<\/td><td>Protection layer 2: transverse crush and impact; magnetically effective screening<\/td><\/tr><tr><td>7<\/td><td>Outer sheath<\/td><td>Transparent PVC<\/td><td>Protection layer 3; braid visible for inspection<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section id=\"data\"><h2>3. Technical data<\/h2><div class=\"scroll\"><table style=\"min-width:1180px\"><caption>Technical data (complete)<\/caption><thead><tr><th>Parameter<\/th><th>Value<\/th><th>Engineering note<\/th><\/tr><\/thead><tbody><tr><td>Conductor material<\/td><td>Bare copper strand<\/td><td><\/td><\/tr><tr><td>Conductor class<\/td><td>IEC 60228 class 5<\/td><td><\/td><\/tr><tr><td>Core insulation<\/td><td>PVC<\/td><td>1 kV wall thickness on the 0.6\/1 kV type<\/td><\/tr><tr><td>Core identification<\/td><td>JZ\/OZ: DIN VDE 0293 black cores with white numerals; JB\/OB: coloured \u2014 up to 5 cores DIN VDE 0293-308, from 6 cores colour code per technical guideline; G: with GNYE<\/td><td><\/td><\/tr><tr><td>Stranding<\/td><td>Cores stranded in layers<\/td><td><\/td><\/tr><tr><td>Inner sheath<\/td><td>PVC<\/td><td><\/td><\/tr><tr><td>Braid<\/td><td>Galvanised steel wire braid<\/td><td>Oxidation-protected; magnetic screen and mechanical armour<\/td><\/tr><tr><td>Outer sheath<\/td><td>PVC<\/td><td><\/td><\/tr><tr><td>Sheath colour<\/td><td>Transparent<\/td><td><\/td><\/tr><tr><td>Rated voltage U<sub>0<\/sub>\/U<\/td><td>JZ\/OZ: 300\/500 V \u00b7 JB\/OB: 0.6\/1 kV (from 25 mm\u00b2)<\/td><td><\/td><\/tr><tr><td>Test voltage<\/td><td>4 kV<\/td><td><\/td><\/tr><tr><td>Conductor resistance<\/td><td>Acc. to IEC 60228 cl. 5<\/td><td><\/td><\/tr><tr><td>Insulation resistance<\/td><td>Min. 20 M\u03a9 \u00d7 km<\/td><td><\/td><\/tr><tr><td>Current carrying capacity<\/td><td>Acc. to DIN VDE (technical guideline)<\/td><td><\/td><\/tr><tr><td>Min. bending radius fixed<\/td><td>6 \u00d7 d<\/td><td><\/td><\/tr><tr><td>Min. bending radius moved<\/td><td>15 \u00d7 d<\/td><td><\/td><\/tr><tr><td>Operating temp. fixed<\/td><td>\u221230 \u00b0C \/ +80 \u00b0C<\/td><td>Note \u221230 \u00b0C, not \u221240 \u00b0C as on YCY types<\/td><\/tr><tr><td>Operating temp. moved<\/td><td>\u221215 \u00b0C \/ +70 \u00b0C<\/td><td><\/td><\/tr><tr><td>Conductor temperature<\/td><td>+70 \u00b0C operation; +150 \u00b0C short-circuit<\/td><td><\/td><\/tr><tr><td>Burning behaviour<\/td><td>Self-extinguishing and flame-retardant acc. to IEC 60332-1<\/td><td><\/td><\/tr><tr><td>Chemical resistance<\/td><td>Largely resistant to acids, bases and specified oils<\/td><td><\/td><\/tr><tr><td>Storage<\/td><td>Not outdoors or in wet rooms<\/td><td>Protects the galvanised braid until installation<\/td><\/tr><tr><td>Standard<\/td><td>Similar to EN 50525-2-51; 0.6\/1 kV type with 1 kV insulation thickness<\/td><td><\/td><\/tr><tr><td>Compliance<\/td><td>RoHS; 2014\/35\/EU Low Voltage Directive (CE); LABS-\/silicone-free during production<\/td><td><\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section id=\"emc\"><h2>4. Steel braid versus copper braid<\/h2><div class=\"scroll\"><table style=\"min-width:1180px\"><caption>Screening behaviour by braid material<\/caption><thead><tr><th>Property<\/th><th>Galvanised steel braid (YSY)<\/th><th>Tinned copper braid (YCY)<\/th><\/tr><\/thead><tbody><tr><td>Magnetic permeability<\/td><td>High (ferromagnetic)<\/td><td>\u22481 (non-magnetic)<\/td><\/tr><tr><td>Low-frequency magnetic fields (50 Hz, transformers, busbars)<\/td><td>Effective attenuation<\/td><td>Limited<\/td><\/tr><tr><td>High-frequency electric interference (VSD switching)<\/td><td>Moderate \u2014 higher resistance<\/td><td>Very effective<\/td><\/tr><tr><td>Mechanical protection<\/td><td>High (hard wires)<\/td><td>Moderate<\/td><\/tr><tr><td>Suitability as PE<\/td><td>No<\/td><td>No (use GNYE core)<\/td><\/tr><tr><td>Corrosion<\/td><td>Galvanised; keep dry in storage<\/td><td>Tinned<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"note\">Bond the steel braid to earth at the gland for safety. Where both magnetic and high-frequency screening are needed, specify a combined design on request.<\/div><\/section>\n<section id=\"tables\"><h2>5. Full dimension and weight tables<\/h2><p>All 61 constructions are listed, grouped by cross-section: JZ\/OZ-YSY 300\/500 V up to 16 mm\u00b2, JB\/OB-YSY 0.6\/1 kV from 25 mm\u00b2. Bending radii are calculated from the nominal outer diameter (6 \u00d7 d fixed, 15 \u00d7 d moved). The steel braid explains why weight is well above that of the copper-braided types.<\/p><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 0.5 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 7 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>2 x 0.5<\/td><td>OZ (without GNYE)<\/td><td>1001108<\/td><td>7.2<\/td><td>9.6<\/td><td>77.0<\/td><td>43<\/td><td>108<\/td><\/tr><tr><td>3 G 0.5<\/td><td>JZ (with GNYE)<\/td><td>1000801<\/td><td>7.7<\/td><td>14.4<\/td><td>86.0<\/td><td>46<\/td><td>116<\/td><\/tr><tr><td>4 G 0.5<\/td><td>JZ (with GNYE)<\/td><td>1002319<\/td><td>8.1<\/td><td>19.2<\/td><td>101.0<\/td><td>49<\/td><td>122<\/td><\/tr><tr><td>5 G 0.5<\/td><td>JZ (with GNYE)<\/td><td>1001717<\/td><td>8.6<\/td><td>24.0<\/td><td>116.0<\/td><td>52<\/td><td>129<\/td><\/tr><tr><td>7 G 0.5<\/td><td>JZ (with GNYE)<\/td><td>1000831<\/td><td>9.7<\/td><td>33.6<\/td><td>134.0<\/td><td>58<\/td><td>146<\/td><\/tr><tr><td>12 G 0.5<\/td><td>JZ (with GNYE)<\/td><td>1000770<\/td><td>11.6<\/td><td>58.0<\/td><td>204.0<\/td><td>70<\/td><td>174<\/td><\/tr><tr><td>21 G 0.5<\/td><td>JZ (with GNYE)<\/td><td>1000782<\/td><td>14.9<\/td><td>101.0<\/td><td>332.0<\/td><td>89<\/td><td>224<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 0.75 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 9 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>2 x 0.75<\/td><td>OZ (without GNYE)<\/td><td>1001109<\/td><td>7.8<\/td><td>14.4<\/td><td>88.0<\/td><td>47<\/td><td>117<\/td><\/tr><tr><td>3 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000802<\/td><td>8.1<\/td><td>21.6<\/td><td>102.0<\/td><td>49<\/td><td>122<\/td><\/tr><tr><td>4 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000809<\/td><td>8.6<\/td><td>28.8<\/td><td>135.0<\/td><td>52<\/td><td>129<\/td><\/tr><tr><td>5 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000822<\/td><td>9.4<\/td><td>36.0<\/td><td>144.0<\/td><td>56<\/td><td>141<\/td><\/tr><tr><td>7 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000832<\/td><td>10.3<\/td><td>50.4<\/td><td>168.0<\/td><td>62<\/td><td>154<\/td><\/tr><tr><td>12 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000771<\/td><td>12.8<\/td><td>86.4<\/td><td>252.0<\/td><td>77<\/td><td>192<\/td><\/tr><tr><td>18 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000778<\/td><td>14.8<\/td><td>130.0<\/td><td>330.0<\/td><td>89<\/td><td>222<\/td><\/tr><tr><td>21 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1003420<\/td><td>16.2<\/td><td>151.0<\/td><td>415.0<\/td><td>97<\/td><td>243<\/td><\/tr><tr><td>25 G 0.75<\/td><td>JZ (with GNYE)<\/td><td>1000786<\/td><td>17.0<\/td><td>180.0<\/td><td>435.0<\/td><td>102<\/td><td>255<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 1 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 9 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>2 x 1<\/td><td>OZ (without GNYE)<\/td><td>1001110<\/td><td>8.2<\/td><td>19.2<\/td><td>101.0<\/td><td>49<\/td><td>123<\/td><\/tr><tr><td>3 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000803<\/td><td>8.5<\/td><td>28.8<\/td><td>112.0<\/td><td>51<\/td><td>128<\/td><\/tr><tr><td>4 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000810<\/td><td>9.3<\/td><td>38.4<\/td><td>127.0<\/td><td>56<\/td><td>140<\/td><\/tr><tr><td>5 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000823<\/td><td>9.8<\/td><td>48.0<\/td><td>153.0<\/td><td>59<\/td><td>147<\/td><\/tr><tr><td>7 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000833<\/td><td>11.0<\/td><td>67.2<\/td><td>188.0<\/td><td>66<\/td><td>165<\/td><\/tr><tr><td>12 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000772<\/td><td>13.6<\/td><td>115.0<\/td><td>285.0<\/td><td>82<\/td><td>204<\/td><\/tr><tr><td>18 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000779<\/td><td>15.6<\/td><td>173.0<\/td><td>400.0<\/td><td>94<\/td><td>234<\/td><\/tr><tr><td>25 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000787<\/td><td>18.1<\/td><td>240.0<\/td><td>520.0<\/td><td>109<\/td><td>272<\/td><\/tr><tr><td>34 G 1<\/td><td>JZ (with GNYE)<\/td><td>1000797<\/td><td>20.5<\/td><td>326.0<\/td><td>707.0<\/td><td>123<\/td><td>308<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 1.5 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 10 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>2 x 1.5<\/td><td>OZ (without GNYE)<\/td><td>1001111<\/td><td>8.9<\/td><td>28.8<\/td><td>117.0<\/td><td>53<\/td><td>134<\/td><\/tr><tr><td>3 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000804<\/td><td>9.3<\/td><td>43.2<\/td><td>137.0<\/td><td>56<\/td><td>140<\/td><\/tr><tr><td>4 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000811<\/td><td>9.9<\/td><td>58.0<\/td><td>167.0<\/td><td>59<\/td><td>148<\/td><\/tr><tr><td>5 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000824<\/td><td>10.8<\/td><td>72.0<\/td><td>193.0<\/td><td>65<\/td><td>162<\/td><\/tr><tr><td>7 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000834<\/td><td>11.9<\/td><td>101.0<\/td><td>228.0<\/td><td>71<\/td><td>178<\/td><\/tr><tr><td>8 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000840<\/td><td>13.6<\/td><td>115.0<\/td><td>285.0<\/td><td>82<\/td><td>204<\/td><\/tr><tr><td>12 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000773<\/td><td>15.1<\/td><td>173.0<\/td><td>378.0<\/td><td>91<\/td><td>226<\/td><\/tr><tr><td>18 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000780<\/td><td>17.3<\/td><td>259.0<\/td><td>480.0<\/td><td>104<\/td><td>260<\/td><\/tr><tr><td>25 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000788<\/td><td>20.3<\/td><td>360.0<\/td><td>685.0<\/td><td>122<\/td><td>304<\/td><\/tr><tr><td>34 G 1.5<\/td><td>JZ (with GNYE)<\/td><td>1000798<\/td><td>22.9<\/td><td>490.0<\/td><td>870.0<\/td><td>137<\/td><td>344<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 2.5 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 8 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>2 x 2.5<\/td><td>OZ (without GNYE)<\/td><td>1001112<\/td><td>10.4<\/td><td>48.0<\/td><td>157.0<\/td><td>62<\/td><td>156<\/td><\/tr><tr><td>3 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000805<\/td><td>11.0<\/td><td>72.0<\/td><td>191.0<\/td><td>66<\/td><td>165<\/td><\/tr><tr><td>4 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000814<\/td><td>11.9<\/td><td>96.0<\/td><td>224.0<\/td><td>71<\/td><td>178<\/td><\/tr><tr><td>5 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000827<\/td><td>12.8<\/td><td>120.0<\/td><td>275.0<\/td><td>77<\/td><td>192<\/td><\/tr><tr><td>7 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000837<\/td><td>14.3<\/td><td>168.0<\/td><td>329.0<\/td><td>86<\/td><td>214<\/td><\/tr><tr><td>12 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000774<\/td><td>18.2<\/td><td>288.0<\/td><td>532.0<\/td><td>109<\/td><td>273<\/td><\/tr><tr><td>18 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000781<\/td><td>21.1<\/td><td>432.0<\/td><td>790.0<\/td><td>127<\/td><td>316<\/td><\/tr><tr><td>25 G 2.5<\/td><td>JZ (with GNYE)<\/td><td>1000790<\/td><td>24.4<\/td><td>600.0<\/td><td>1,030.0<\/td><td>146<\/td><td>366<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 4 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 3 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 4<\/td><td>JZ (with GNYE)<\/td><td>1000817<\/td><td>13.9<\/td><td>154.0<\/td><td>318.0<\/td><td>83<\/td><td>208<\/td><\/tr><tr><td>5 G 4<\/td><td>JZ (with GNYE)<\/td><td>1000828<\/td><td>15.0<\/td><td>192.0<\/td><td>392.0<\/td><td>90<\/td><td>225<\/td><\/tr><tr><td>7 G 4<\/td><td>JZ (with GNYE)<\/td><td>1000838<\/td><td>16.4<\/td><td>269.0<\/td><td>486.0<\/td><td>98<\/td><td>246<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 6 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 3 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 6<\/td><td>JZ (with GNYE)<\/td><td>1000818<\/td><td>15.8<\/td><td>230.0<\/td><td>440.0<\/td><td>95<\/td><td>237<\/td><\/tr><tr><td>5 G 6<\/td><td>JZ (with GNYE)<\/td><td>1000829<\/td><td>17.2<\/td><td>288.0<\/td><td>545.0<\/td><td>103<\/td><td>258<\/td><\/tr><tr><td>7 G 6<\/td><td>JZ (with GNYE)<\/td><td>1000839<\/td><td>18.9<\/td><td>403.0<\/td><td>668.0<\/td><td>113<\/td><td>284<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 10 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 3 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 10<\/td><td>JZ (with GNYE)<\/td><td>1000812<\/td><td>19.4<\/td><td>384.0<\/td><td>699.0<\/td><td>116<\/td><td>291<\/td><\/tr><tr><td>5 G 10<\/td><td>JZ (with GNYE)<\/td><td>1000825<\/td><td>21.5<\/td><td>480.0<\/td><td>850.0<\/td><td>129<\/td><td>322<\/td><\/tr><tr><td>7 G 10<\/td><td>JZ (with GNYE)<\/td><td>1000835<\/td><td>23.4<\/td><td>672.0<\/td><td>1,189.0<\/td><td>140<\/td><td>351<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 16 mm\u00b2 \u00b7 300\/500 V \u00b7 \u00d6PVC-JZ\/OZ-YSY \u00b7 2 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 16<\/td><td>JZ (with GNYE)<\/td><td>1000813<\/td><td>22.4<\/td><td>614.0<\/td><td>1,228.0<\/td><td>134<\/td><td>336<\/td><\/tr><tr><td>5 G 16<\/td><td>JZ (with GNYE)<\/td><td>1000826<\/td><td>24.6<\/td><td>768.0<\/td><td>1,322.0<\/td><td>148<\/td><td>369<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 25 mm\u00b2 \u00b7 0.6\/1 kV \u00b7 \u00d6PVC-JB\/OB-YSY \u00b7 2 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 25<\/td><td>JB (with GNYE)<\/td><td>1000435<\/td><td>28.9<\/td><td>960.0<\/td><td>2,020.0<\/td><td>173<\/td><td>434<\/td><\/tr><tr><td>5 G 25<\/td><td>JB (with GNYE)<\/td><td>1000444<\/td><td>31.8<\/td><td>1,200.0<\/td><td>2,465.0<\/td><td>191<\/td><td>477<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 35 mm\u00b2 \u00b7 0.6\/1 kV \u00b7 \u00d6PVC-JB\/OB-YSY \u00b7 2 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 35<\/td><td>JB (with GNYE)<\/td><td>1000437<\/td><td>32.2<\/td><td>1,344.0<\/td><td>2,570.0<\/td><td>193<\/td><td>483<\/td><\/tr><tr><td>5 G 35<\/td><td>JB (with GNYE)<\/td><td>1003416<\/td><td>36.0<\/td><td>1,680.0<\/td><td>3,185.0<\/td><td>216<\/td><td>540<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 50 mm\u00b2 \u00b7 0.6\/1 kV \u00b7 \u00d6PVC-JB\/OB-YSY \u00b7 1 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 50<\/td><td>JB (with GNYE)<\/td><td>1000438<\/td><td>38.2<\/td><td>1,920.0<\/td><td>3,515.0<\/td><td>229<\/td><td>573<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 70 mm\u00b2 \u00b7 0.6\/1 kV \u00b7 \u00d6PVC-JB\/OB-YSY \u00b7 1 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 70<\/td><td>JB (with GNYE)<\/td><td>1000439<\/td><td>43.8<\/td><td>2,688.0<\/td><td>4,810.0<\/td><td>263<\/td><td>657<\/td><\/tr><\/tbody><\/table><\/div><div class=\"scroll\"><table style=\"min-width:1400px\"><caption>Cross-section 95 mm\u00b2 \u00b7 0.6\/1 kV \u00b7 \u00d6PVC-JB\/OB-YSY \u00b7 1 constructions<\/caption><thead><tr><th>Dimension n \u00d7 mm\u00b2<\/th><th>Version<\/th><th>Reference item no.<\/th><th>Outer \u00d8 mm<\/th><th>Cu index kg\/km<\/th><th>Weight kg\/km<\/th><th>Min. bend radius fixed (6 \u00d7 d) mm<\/th><th>Min. bend radius moved (15 \u00d7 d) mm<\/th><\/tr><\/thead><tbody><tr><td>4 G 95<\/td><td>JB (with GNYE)<\/td><td>1000440<\/td><td>50.4<\/td><td>3,648.0<\/td><td>6,360.0<\/td><td>302<\/td><td>756<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section id=\"application\"><h2>6. Application envelope<\/h2><p>Power, control and connecting cable in electrical facilities, for fixed laying and flexible applications with free movement, without tensile stress and without forced guidance. Suitable for dry, humid and wet rooms. Outdoor use only with UV protection; not for burial. Do not store outdoors or in wet rooms.<\/p><div class=\"svg\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1900 820\" role=\"img\" aria-label=\"JZ application\"><rect width=\"100%\" height=\"100%\" fill=\"#06131b\"><\/rect><text x=\"65\" y=\"70\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"40\" font-weight=\"700\">Application envelope of \u00d6PVC-JZ\/OZ<\/text><g font-family=\"Arial\" fill=\"#eaf6fa\">\n<g transform=\"translate(60 130)\"><rect width=\"560\" height=\"500\" rx=\"20\" fill=\"#0c2630\" stroke=\"#62df9c\" stroke-width=\"4\"\/><text x=\"30\" y=\"55\" font-size=\"27\" font-weight=\"700\" fill=\"#62df9c\">\u2714 Rough industrial routes<\/text>\n<rect x=\"60\" y=\"100\" width=\"200\" height=\"260\" fill=\"#123443\" stroke=\"#55dff7\" stroke-width=\"3\"\/><g fill=\"#55dff7\"><rect x=\"85\" y=\"130\" width=\"150\" height=\"16\"\/><rect x=\"85\" y=\"170\" width=\"150\" height=\"16\"\/><rect x=\"85\" y=\"210\" width=\"150\" height=\"16\"\/><\/g>\n<path d=\"M160 360V420H480\" stroke=\"#9aa6ab\" stroke-width=\"14\" fill=\"none\"\/><text x=\"30\" y=\"465\" font-size=\"19\">Transverse crush and impact protection<\/text><\/g>\n<g transform=\"translate(670 130)\"><rect width=\"560\" height=\"500\" rx=\"20\" fill=\"#0c2630\" stroke=\"#62df9c\" stroke-width=\"4\"\/><text x=\"30\" y=\"55\" font-size=\"27\" font-weight=\"700\" fill=\"#62df9c\">\u2714 Near magnetic fields<\/text>\n<path d=\"M40 180H520\" stroke=\"#315b6f\" stroke-width=\"30\"\/><g stroke=\"#9aa6ab\" stroke-width=\"12\"><path d=\"M40 170H520\"\/><path d=\"M40 190H520\"\/><\/g>\n<path d=\"M300 200C300 300 420 280 440 380\" stroke=\"#9aa6ab\" stroke-width=\"12\" fill=\"none\"\/><rect x=\"400\" y=\"380\" width=\"100\" height=\"70\" fill=\"#123443\" stroke=\"#55dff7\" stroke-width=\"3\"\/>\n<text x=\"30\" y=\"465\" font-size=\"19\">Free movement \u2265 15 \u00d7 d, no tension<\/text><\/g>\n<g transform=\"translate(1280 130)\"><rect width=\"560\" height=\"500\" rx=\"20\" fill=\"#0c2630\" stroke=\"#ff777f\" stroke-width=\"4\"\/><text x=\"30\" y=\"55\" font-size=\"27\" font-weight=\"700\" fill=\"#ff777f\">\u2718 Not designed for<\/text>\n<text x=\"30\" y=\"130\" font-size=\"21\">\u2022 Drag chains \/ forced guidance<\/text><text x=\"30\" y=\"180\" font-size=\"21\">\u2022 Tensile load, reels, festoons<\/text><text x=\"30\" y=\"230\" font-size=\"21\">\u2022 Direct burial<\/text><text x=\"30\" y=\"280\" font-size=\"21\">\u2022 Outdoors without UV protection<\/text><text x=\"30\" y=\"330\" font-size=\"21\">\u2022 Storage outdoors \/ wet rooms<\/text>\n<text x=\"30\" y=\"420\" font-size=\"18\" fill=\"#b8ccd3\">Steel braid is not a tensile member:<\/text><text x=\"30\" y=\"450\" font-size=\"18\" fill=\"#b8ccd3\">use chain or reeling designs instead.<\/text><\/g>\n<rect x=\"60\" y=\"680\" width=\"1780\" height=\"100\" rx=\"18\" fill=\"#071821\" stroke=\"#315b6f\"\/><text x=\"100\" y=\"740\" font-size=\"21\" font-weight=\"700\" fill=\"#ffcf9c\">Suitable for dry, humid and wet rooms. Suitable for dry, humid and wet rooms in service; do not store drums outdoors or in wet rooms.<\/text><\/g><\/svg><div class=\"svg-caption\">Figure 2: Permitted duties and exclusions.<\/div><\/div><\/section>\n<section id=\"compare\"><h2>7. Comparison<\/h2><div class=\"scroll\"><table style=\"min-width:1300px\"><caption>YSY compared with related cables<\/caption><thead><tr><th>Type<\/th><th>Braid \/ armour<\/th><th>Sheath<\/th><th>Mechanical protection<\/th><th>Screening strength<\/th><th>Typical use<\/th><\/tr><\/thead><tbody><tr><td>\u00d6PVC-JZ\/OZ<\/td><td>None<\/td><td>Single PVC<\/td><td>Low<\/td><td>None<\/td><td>General wiring<\/td><\/tr><tr><td>\u00d6PVC-JZ\/OZ-YCY<\/td><td>Tinned Cu braid \u224885 %<\/td><td>PVC inner + outer<\/td><td>Medium<\/td><td>High-frequency EMC (electric\/HF fields)<\/td><td>Drives, signals<\/td><\/tr><tr><td><strong>\u00d6PVC-JZ\/OZ-YSY \/ JB\/OB-YSY<\/strong><\/td><td><strong>Galvanised steel-wire braid<\/strong><\/td><td><strong>PVC inner + transparent outer<\/strong><\/td><td><strong>High (triple protection)<\/strong><\/td><td><strong>Low-frequency magnetic fields<\/strong><\/td><td><strong>Rough routes, near transformers and busbars<\/strong><\/td><\/tr><tr><td>SWA armoured (e.g. NYRY)<\/td><td>Steel wire armour<\/td><td>PVC<\/td><td>High, fixed only<\/td><td>Limited<\/td><td>Fixed power, some burial<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section id=\"design\"><h2>8. Design calculations<\/h2><div class=\"formula\">Current rating: DIN VDE base value \u00d7 f(ambient) \u00d7 f(grouping) \u00d7 f(loaded cores)\nShort-circuit (PVC 70 \u2192 150 \u00b0C, Cu): I_k \u2248 115 \u00d7 S \/ \u221at   e.g. 4 G 95, t = 0.5 s \u2192 \u2248 15.5 kA\nVoltage drop: \u0394U = \u221a3 \u00d7 I \u00d7 L \u00d7 (R cos\u03c6 + X sin\u03c6)\nBending: fixed R \u2265 6 \u00d7 d \u00b7 moved R \u2265 15 \u00d7 d   e.g. 4 G 95 (d = 50.4 mm): 302 mm \/ 756 mm\nSupport spacing: allow for the higher mass, e.g. 4 G 95 = 6 360 kg\/km \u2248 6.4 kg\/m<\/div><\/section>\n<section id=\"quality\"><h2>9. Certification and traceability<\/h2><p>This cable is RoHS-conform, CE-conform to the 2014\/35\/EU Low Voltage Directive and LABS-\/silicone-free during production, with flame behaviour to IEC 60332-1. FeiChun Cable holds a complete export certification portfolio \u2014 including CE, UKCA, VDE, EAC, ATEX and IECEx \u2014 and every certificate supplied is checked against the exact type, voltage, factory and standard of the order.<\/p>\n<div class=\"cards\"><div class=\"card\"><h3>Routine tests<\/h3><p>Conductor resistance, 4 kV voltage test, insulation resistance, braid continuity, dimensions and marking.<\/p><\/div><div class=\"card\"><h3>Type tests<\/h3><p>IEC 60332-1 flame, sheath ageing, braid zinc coating check, oil resistance on request.<\/p><\/div><div class=\"card\"><h3>Delivery documents<\/h3><p>Approved datasheet, test report per drum, batch number and length marking; drums supplied with sealed ends.<\/p><\/div><\/div><\/section>\n<section id=\"faq\"><h2>10. FAQ<\/h2><div class=\"cards\"><div class=\"card\"><h3>Is YSY an EMC cable like YCY?<\/h3><p>Different purpose. Copper braid (YCY) is effective against high-frequency electric interference; the steel braid of YSY is ferromagnetic and attenuates low-frequency magnetic fields, while also acting as mechanical armour. For drive EMC, YCY remains the reference.<\/p><\/div><div class=\"card\"><h3>What does \u2018triple protection\u2019 mean?<\/h3><p>PVC inner sheath, galvanised steel-wire braid and PVC outer sheath: three layers against transverse crushing and impact.<\/p><\/div><div class=\"card\"><h3>Can the steel braid be used as the PE conductor?<\/h3><p>No. Steel has a much higher resistance than copper. Use the GNYE core as PE and bond the braid to earth for safety.<\/p><\/div><div class=\"card\"><h3>Can it take tensile load?<\/h3><p>No. The braid is armour against crushing, not a strain member; free movement only, without tension.<\/p><\/div><div class=\"card\"><h3>Why no outdoor storage?<\/h3><p>Moisture ingress at cut ends can corrode the braid before installation; keep drums covered and ends sealed.<\/p><\/div><div class=\"card\"><h3>JZ\/OZ or JB\/OB?<\/h3><p>JZ\/OZ (300\/500 V, numbered cores) up to 16 mm\u00b2; JB\/OB (0.6\/1 kV, coloured cores) from 25 mm\u00b2.<\/p><\/div><\/div>\n<div class=\"contact\"><div><strong>FeiChun Cable \/ \u98de\u7eaf\u7535\u7f06<\/strong><br>Technical and project enquiries: <a href=\"mailto:Tech@feichuncables.com\">Tech@feichuncables.com<\/a><\/div><div><strong>Manufacturing in China, export support<\/strong><br><a href=\"tel:+8613855123218\">+86 13855123218<\/a><\/div><\/div><\/section><\/main>\n<footer><div class=\"wrap\"><div class=\"grid\"><div><div class=\"tag\">FEICHUN CABLE<\/div><h2>Triple protection and magnetic screening in one flexible PVC cable<\/h2><p class=\"small\">For industrial plant, machinery and routes with high mechanical stress.<\/p><\/div><div><p><strong>Tech@feichuncables.com<\/strong><\/p><p><strong>+86 13855123218<\/strong><\/p><p class=\"small\">Document FC-ART-YSY-2026-23B8. Final values are governed by the approved datasheet, order drawing, batch test reports and certificate scope.<\/p><\/div><\/div><\/div><\/footer><\/body><\/html>\n","protected":false},"excerpt":{"rendered":"An engineering guide to the YSY construction: PVC inner sheath, oxidation-protected galvanised steel-wire braid and transparent PVC outer sheath \u2014 high resistance to transverse crushing and impact, plus a magnetically effective screen.","protected":false},"author":1,"featured_media":77217,"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":[66,464,209,97,7,12355,1,56,53617,61737],"tags":[16,171,152,176,139,214,204,17],"class_list":["post-77216","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-flexible-cables-with-high-bending-life-and-fatigue-resistance","category-icea-s-75-381-portable-power-cables","category-lszh-low-smoke-zero-halogen-flexible-cable","category-mining-trailing-cable","category-northern-latitude-mining-cable","category-uncategorized","category-reeling-cable","category-sts-crane-cable","category----lapp","tag-din-vde-0250","tag-explosion-proof-mining-cable","tag-heavy-duty-mining-cable","tag-icea-s-75-381-2","tag-mining-cables","tag-mining-power-cable","tag-mining-trailing-cable","tag-reeling-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/77216","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=77216"}],"version-history":[{"count":1,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/77216\/revisions"}],"predecessor-version":[{"id":77219,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/77216\/revisions\/77219"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/77217"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=77216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=77216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=77216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}