FC-TDS-SUB-2026-969E \u00b7 FC-FLX\u2122 SUB-MV (N)TSCGEW\u00d6U 6\/10 kV 3\u00d750+2\u00d725\/2+S(4\u00d70.5) \u2014 Technical Datasheet<\/title>\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Source+Sans+3:wght@400;600;700;800&family=Barlow+Condensed:wght@500;600;700&display=swap\" rel=\"stylesheet\">\n<style>\n:root{\n --deep:#1B5E20;--mid:#388E3C;--bright:#4CAF50;--pale:#E8F5E9;\n --charcoal:#263238;--slate:#37474F;--gold:#FFB300;--red:#FF1744;\n --ink:#1d2a30;--muted:#5f6f76;--line:#cfd8dc;--paper:#ffffff;\n}\n*{box-sizing:border-box}\nhtml{-webkit-print-color-adjust:exact;print-color-adjust:exact}\nbody{margin:0;background:#eef2ef;color:var(--ink);font-family:\"Source Sans 3\",\"Liberation Sans\",Arial,sans-serif;font-size:14.5px;line-height:1.55}\nbody::after{content:\"FEICHUN CABLES\";position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) 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li{margin-bottom:5px}\n.sign{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:22px;break-inside:avoid}\n.sign div{border-top:1.5px solid var(--charcoal);padding-top:6px;font-size:12.5px;color:var(--muted)}\n.sign b{color:var(--charcoal);display:block;font-size:13.5px}\n.stamp{position:absolute;right:26px;top:22px;width:92px;height:92px;border:2.5px solid var(--deep);border-radius:50%;display:grid;place-items:center;text-align:center;font-size:9.5px;font-weight:800;color:var(--deep);transform:rotate(-12deg);opacity:.75;line-height:1.2}\n.ip{border:2px solid var(--gold);background:#fffbeb;padding:14px 18px;margin-top:26px;font-size:12.3px;color:#4a3b00;break-inside:avoid}\n.ip b{color:#6b4f00}\n.contact{background:var(--charcoal);color:#eceff1;padding:22px 40px;display:grid;grid-template-columns:1.2fr 1fr;gap:20px;font-size:13px}\n.contact p{margin:0;line-height:1.75}\n.contact b{color:var(--gold)}\n.contact a{color:#c8e6c9;text-decoration:none}\n.foot{display:flex;justify-content:space-between;padding:10px 40px;font-size:11.5px;color:var(--muted);border-top:1px solid var(--line)}\n.runfoot{display:none}\n@media (max-width:760px){.two,.contact,.sign{grid-template-columns:1fr}.keyfigs{grid-template-columns:repeat(2,1fr)}.keyfigs div:nth-child(2){border-right:0}.content{padding:6px 18px 24px}.topline,.foot{padding:10px 18px;flex-wrap:wrap;gap:6px}}\n@media (max-width:640px){.doc-header-badge{white-space:normal;padding:8px 16px}.doc-header-badges-wrapper{gap:8px}.doc-header h1{font-size:23px}.stamp{display:none}}\n@page{size:A4 portrait;margin:16mm 12mm 15mm 12mm}\n@media print{\n body{background:#fff;font-size:12.5px}\n body::after{position:fixed}\n .page{margin:0;max-width:none;box-shadow:inset 3px 0 0 var(--bright);border-left-width:7mm}\n thead{display:table-header-group}\n h2,h3{break-after:avoid}\n table,.callout,.declaration,.sign,figure,.keyfigs,.ip{break-inside:avoid}\n .runfoot{display:block;position:fixed;bottom:-9mm;left:0;right:0;text-align:center;font-size:9px;color:#607d8b}\n .two{grid-template-columns:1fr 1fr}\n}\n<\/style>\n<\/head>\n<body>\n<div class=\"page\">\n<div class=\"brandbar\"><\/div>\n<div class=\"topline\">\n <div class=\"logo\"><div class=\"logo-mark\">FC<\/div><div>FeiChun Special Cables<small>Anhui FeiChun Special Cable Co., Ltd. \u00b7 Hefei, China<\/small><\/div><\/div>\n <div>Technical Datasheet \u00b7 <b>FC-TDS-SUB-2026-969E<\/b> \u00b7 Rev A<\/div>\n<\/div>\n\n<header class=\"doc-header\">\n <div class=\"container\">\n <div class=\"doc-header-badges-wrapper\">\n <span class=\"doc-header-badge type\">TYPE: SUB-MV<\/span>\n <span class=\"doc-header-badge gold\">U<sub>0<\/sub>\/U (U<sub>m<\/sub>) 6\/10 (12) kV<\/span>\n <span class=\"doc-header-badge\">EPR insulation<\/span>\n <span class=\"doc-header-badge\">CPE rubber outer sheath<\/span>\n <span class=\"doc-header-badge\">Permanent immersion<\/span>\n <span class=\"doc-header-badge\">Screened pairs S(4\u00d70.5)<\/span>\n <\/div>\n <h1>Medium-Voltage Submersible Pump Motor Cable<span class=\"model\">FC-FLX\u2122 SUB-MV (N)TSCGEW\u00d6U 6\/10 kV 3\u00d750 + 2\u00d725\/2 + S(4\u00d70.5) mm\u00b2<\/span><\/h1>\n <p>Continuous-length replacement cable for Xylem Flygt pump 3400\/883 with motor M54-60-6MDY\/04 (250 kW, 6000 V, 50 Hz) \u2014 replaces original Xylem part no. 950023.<\/p>\n <div class=\"doc-meta\">\n <span>Doc no. <b>FC-TDS-SUB-2026-969E<\/b><\/span>\n <span>Issue date <b>18 September 2026<\/b><\/span>\n <span>Project <b>JSC Pavlodar River Port, Kazakhstan<\/b><\/span>\n <span>Supply <b>1 \u00d7 180 m or 1 \u00d7 200 m, no joints<\/b><\/span>\n <\/div>\n <\/div>\n<\/header>\n\n<div class=\"content\">\n\n<div class=\"keyfigs\">\n <div><div class=\"val\">52.0 \u00b1 1.5 mm<\/div><div class=\"lab\">Overall diameter (50.5 \u2013 53.5 mm)<\/div><\/div>\n <div><div class=\"val\">\u2248 4.25 kg\/m<\/div><div class=\"lab\">Nominal cable weight (4,250 kg\/km)<\/div><\/div>\n <div><div class=\"val\">315 \/ 520 mm<\/div><div class=\"lab\">Min. bending radius, fixed \/ during handling<\/div><\/div>\n <div><div class=\"val\">100 m<\/div><div class=\"lab\">Max. permanent immersion depth (1.0 MPa)<\/div><\/div>\n<\/div>\n\n\n<section>\n <h2><span class=\"n\">1<\/span>Application and scope<\/h2>\n <p>This datasheet defines a flexible medium-voltage power cable with integrated screened control pairs, built to the (N)TSCGEW\u00d6U design principle of DIN VDE 0250-813 for heavy-duty rubber-insulated flexible cables. It is engineered as a direct replacement for the original supply cable of a Flygt 3400\/883 submersible pump, for continuous operation with a 6000 V three-phase motor while permanently immersed in water.<\/p>\n <p>The construction matches the requirement exactly: three 50 mm\u00b2 phase conductors, two split earth conductors totalling 25 mm\u00b2, and one S(4\u00d70.5) control element made of four copper conductors arranged as two twisted pairs under a common screen. No optical fibres, no external control cable and no 3\u00d750+3\u00d725\/3 substitution are used.<\/p>\n <div class=\"callout\"><b>Design basis:<\/b> DIN VDE 0250-813 construction principle \u00b7 IEC 60228 class 5 conductors \u00b7 DIN VDE 0207-20 (EPR 3GI3) insulation \u00b7 DIN VDE 0207-21 (5GM5 \/ CPE) outer sheath \u00b7 test methods of IEC 60502-2, IEC 60885-3 and IEC 60811 \u00b7 flame propagation to IEC 60332-1-2.<\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">2<\/span>Motor and duty data used for the design check<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Parameter<\/th><th>Value (as confirmed by buyer)<\/th><th>Parameter<\/th><th>Value<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">Pump model<\/td><td class=\"v\">Flygt 3400\/883<\/td><td class=\"k\">Rated current<\/td><td class=\"v\">\u2248 30 A<\/td><\/tr>\n <tr><td class=\"k\">Motor model<\/td><td class=\"v\">M54-60-6MDY\/04<\/td><td class=\"k\">Speed<\/td><td class=\"v\">995 rpm<\/td><\/tr>\n <tr><td class=\"k\">Rated power<\/td><td class=\"v\">250 kW<\/td><td class=\"k\">Power factor<\/td><td class=\"v\">cos \u03c6 0.83<\/td><\/tr>\n <tr><td class=\"k\">Rated voltage<\/td><td class=\"v\">6000 V, 3~, 50 Hz<\/td><td class=\"k\">Max. liquid temperature<\/td><td class=\"v\">40 \u00b0C<\/td><\/tr>\n <tr><td class=\"k\">Connection<\/td><td class=\"v\">Star (Y)<\/td><td class=\"k\">Reference \/ serial no.<\/td><td class=\"v\">2431110<\/td><\/tr>\n <tr><td class=\"k\">Original cable<\/td><td class=\"v\">NTSCGEW\u00d6U \/ NTSCGEWCOEUS<\/td><td class=\"k\">Original Xylem P\/N<\/td><td class=\"v\">950023<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">3<\/span>Cable cross-section<\/h2>\n <div class=\"two\">\n <figure>\n<svg viewBox=\"0 0 520 560\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" font-family=\"Barlow Condensed, DejaVu Sans Condensed, Arial, sans-serif\">\n <defs>\n <radialGradient id=\"cu\" cx=\"40%\" cy=\"38%\" 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stroke-width=\".9\" fill=\"none\">\n <polyline points=\"325,288 470,288 487,288\"\/>\n <polyline points=\"354.8,270.8 470,245 487,245\"\/>\n <polyline points=\"366.6,312 470,332 487,332\"\/>\n <polyline points=\"356.5,342.6 470,376 487,376\"\/>\n <polyline points=\"354.3,195.6 470,150 487,150\"\/>\n <polyline points=\"372,180 470,106 487,106\"\/>\n <polyline points=\"270,369 450,420 487,420\"\/>\n <polyline points=\"238,368 70,452 33,452\"\/>\n <polyline points=\"232,358.9 60,414 33,414\"\/>\n <polyline points=\"215,360 60,378 33,378\"\/>\n <polyline points=\"121,199.4 60,180 33,180\"\/>\n <polyline points=\"103.5,248 60,248 33,248\"\/>\n <polyline points=\"139.8,129.8 60,96 33,96\"\/>\n <polyline points=\"160,122 90,56 33,56\"\/>\n <\/g>\n <g fill=\"#263238\"><circle cx=\"325\" cy=\"288\" r=\"2.2\"\/><circle cx=\"354.8\" cy=\"270.8\" r=\"2.2\"\/><circle cx=\"366.6\" cy=\"312\" r=\"2.2\"\/><circle cx=\"356.5\" cy=\"342.6\" r=\"2.2\"\/><circle cx=\"354.3\" cy=\"195.6\" r=\"2.2\"\/><circle cx=\"372\" cy=\"180\" r=\"2.2\"\/><circle cx=\"270\" cy=\"369\" r=\"2.2\"\/><circle cx=\"238\" cy=\"368\" r=\"2.2\"\/><circle cx=\"232\" cy=\"358.9\" r=\"2.2\"\/><circle cx=\"215\" cy=\"360\" r=\"2.2\"\/><circle cx=\"121\" cy=\"199.4\" r=\"2.2\"\/><circle cx=\"103.5\" cy=\"248\" r=\"2.2\"\/><circle cx=\"139.8\" cy=\"129.8\" r=\"2.2\"\/><circle cx=\"160\" cy=\"122\" r=\"2.2\"\/><\/g>\n <g font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\">\n <g fill=\"#fff\" stroke=\"#263238\" stroke-width=\"1.3\">\n <circle cx=\"498\" cy=\"288\" r=\"11\"\/><circle cx=\"498\" cy=\"245\" r=\"11\"\/><circle cx=\"498\" cy=\"332\" r=\"11\"\/><circle cx=\"498\" cy=\"376\" r=\"11\"\/><circle cx=\"498\" cy=\"150\" r=\"11\"\/><circle cx=\"498\" cy=\"106\" r=\"11\"\/><circle cx=\"498\" cy=\"420\" r=\"11\"\/>\n <circle cx=\"22\" cy=\"452\" r=\"11\"\/><circle cx=\"22\" cy=\"414\" r=\"11\"\/><circle cx=\"22\" cy=\"378\" r=\"11\"\/><circle cx=\"22\" cy=\"180\" r=\"11\"\/><circle cx=\"22\" cy=\"248\" r=\"11\"\/><circle cx=\"22\" cy=\"96\" r=\"11\"\/><circle cx=\"22\" cy=\"56\" r=\"11\"\/>\n <\/g>\n <g fill=\"#263238\">\n <text x=\"498\" y=\"292\">1<\/text><text x=\"498\" y=\"249\">2<\/text><text x=\"498\" y=\"336\">3<\/text><text x=\"498\" y=\"380\">4<\/text><text x=\"498\" y=\"154\">5<\/text><text x=\"498\" y=\"110\">6<\/text><text x=\"498\" y=\"424\">7<\/text>\n <text x=\"22\" y=\"456\">8<\/text><text x=\"22\" y=\"418\">9<\/text><text x=\"22\" y=\"382\">10<\/text><text x=\"22\" y=\"184\">11<\/text><text x=\"22\" y=\"252\">12<\/text><text x=\"22\" y=\"100\">13<\/text><text x=\"22\" y=\"60\">14<\/text>\n <\/g>\n <\/g>\n \n <g font-size=\"10.5\" fill=\"#263238\">\n <rect x=\"1\" y=\"492\" width=\"518\" height=\"67\" fill=\"#f5faf5\" stroke=\"#263238\" stroke-width=\"1.2\"\/>\n <line x1=\"1\" y1=\"514\" x2=\"519\" y2=\"514\" stroke=\"#263238\" stroke-width=\".8\"\/>\n <line x1=\"1\" y1=\"536\" x2=\"519\" y2=\"536\" stroke=\"#263238\" stroke-width=\".8\"\/>\n <line x1=\"190\" y1=\"492\" x2=\"190\" y2=\"559\" stroke=\"#263238\" stroke-width=\".8\"\/>\n <line x1=\"330\" y1=\"492\" x2=\"330\" y2=\"559\" stroke=\"#263238\" stroke-width=\".8\"\/>\n <line x1=\"430\" y1=\"492\" x2=\"430\" y2=\"559\" stroke=\"#263238\" stroke-width=\".8\"\/>\n <text x=\"8\" y=\"507\" font-weight=\"700\" fill=\"#1B5E20\">FC-FLX\u2122 SUB-MV 6\/10 kV<\/text>\n <text x=\"8\" y=\"529\">3\u00d750+2\u00d725\/2+S(4\u00d70.5) mm\u00b2<\/text>\n <text x=\"8\" y=\"551\">FeiChun Special Cables \u00b7 Hefei<\/text>\n <text x=\"197\" y=\"507\">Doc no. FC-TDS-SUB-2026-969E<\/text>\n <text x=\"197\" y=\"529\">Drawing FC-DWG-SUB-969E-01<\/text>\n <text x=\"197\" y=\"551\">Drawn ZY \u00b7 Checked QA<\/text>\n <text x=\"337\" y=\"507\">Rev A<\/text>\n <text x=\"337\" y=\"529\">Scale \u2248 7 : 1<\/text>\n <text x=\"337\" y=\"551\">18.09.2026<\/text>\n <text x=\"437\" y=\"507\">Projection<\/text>\n <g transform=\"translate(446,518)\" fill=\"none\" stroke=\"#263238\" stroke-width=\".9\"><path d=\"M0 4 L16 0 L16 14 L0 10 Z\"\/><circle cx=\"36\" cy=\"7\" r=\"7\"\/><circle cx=\"36\" cy=\"7\" r=\"3\"\/><line x1=\"-4\" y1=\"7\" x2=\"48\" y2=\"7\" stroke-dasharray=\"4 2\"\/><\/g>\n <text x=\"437\" y=\"551\">Units: mm<\/text>\n <\/g>\n<\/svg>\n <figcaption>Fig. 1 \u2014 Section A\u2013A, drawn to scale at nominal dimensions (first-angle projection).<\/figcaption>\n <\/figure>\n\n <div class=\"tbl-wrap\"><table class=\"legend\">\n <thead><tr><th>Pos.<\/th><th>Element<\/th><th>Material \/ design<\/th><\/tr><\/thead>\n <tbody>\n <tr><td><span class=\"pos\">1<\/span><\/td><td>Phase conductor 3 \u00d7 50 mm\u00b2<\/td><td>Tinned annealed copper, class 5 (IEC 60228)<\/td><\/tr>\n <tr><td><span class=\"pos\">2<\/span><\/td><td>Conductor screen<\/td><td>Extruded semi-conductive EPR<\/td><\/tr>\n <tr><td><span class=\"pos\">3<\/span><\/td><td>Insulation<\/td><td>EPR type 3GI3, 3.4 mm nominal<\/td><\/tr>\n <tr><td><span class=\"pos\">4<\/span><\/td><td>Insulation screen<\/td><td>Extruded semi-conductive EPR, triple extruded with 2 and 3<\/td><\/tr>\n <tr><td><span class=\"pos\">5<\/span><\/td><td>Earth conductor 2 \u00d7 25\/2 mm\u00b2<\/td><td>Tinned copper class 5, 2 \u00d7 12.5 mm\u00b2 split in interstices<\/td><\/tr>\n <tr><td><span class=\"pos\">6<\/span><\/td><td>Earth covering<\/td><td>Semi-conductive rubber<\/td><\/tr>\n <tr><td><span class=\"pos\">7<\/span><\/td><td>Control conductors S(4\u00d70.5)<\/td><td>Tinned Cu class 5, EPR insulated, 2 twisted pairs<\/td><\/tr>\n <tr><td><span class=\"pos\">8<\/span><\/td><td>Common screen<\/td><td>Tinned copper braid, \u2265 85 % coverage + drain contact<\/td><\/tr>\n <tr><td><span class=\"pos\">9<\/span><\/td><td>Control element sheath<\/td><td>Semi-conductive \/ rubber sheath<\/td><\/tr>\n <tr><td><span class=\"pos\">10<\/span><\/td><td>Filler and centre<\/td><td>Rubber filling compound, water-blocking<\/td><\/tr>\n <tr><td><span class=\"pos\">11<\/span><\/td><td>Inner sheath<\/td><td>Rubber compound, extruded into interstices<\/td><\/tr>\n <tr><td><span class=\"pos\">12<\/span><\/td><td>Anti-torsion reinforcement<\/td><td>High-tenacity polyester braid<\/td><\/tr>\n <tr><td><span class=\"pos\">13<\/span><\/td><td>Outer sheath<\/td><td>CPE heavy-duty rubber, 5GM5 grade, black<\/td><\/tr>\n <tr><td><span class=\"pos\">14<\/span><\/td><td>Outer surface \/ marking<\/td><td>Embossed legend and metre marks<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">4<\/span>Construction details<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Element<\/th><th>Specification<\/th><th>Nominal value<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">Phase conductors<\/td><td>Tinned annealed copper, flexible class 5, IEC 60228<\/td><td class=\"v\">3 \u00d7 50 mm\u00b2, \u00d8 \u2248 9.2 mm<\/td><\/tr>\n <tr><td class=\"k\">Conductor screen<\/td><td>Semi-conductive EPR, extruded<\/td><td class=\"v\">\u2248 0.6 mm<\/td><\/tr>\n <tr><td class=\"k\">Insulation<\/td><td>EPR 3GI3, DIN VDE 0207-20; 90 \u00b0C rated<\/td><td class=\"v\">3.4 mm nominal<\/td><\/tr>\n <tr><td class=\"k\">Insulation screen<\/td><td>Semi-conductive EPR, extruded, strippable<\/td><td class=\"v\">\u2248 0.6 mm<\/td><\/tr>\n <tr><td class=\"k\">Diameter over core<\/td><td>Triple-extruded, dry-cured (CCV)<\/td><td class=\"v\">\u2248 18.6 mm<\/td><\/tr>\n <tr><td class=\"k\">Phase core identification<\/td><td>Printed numbers on semi-conductive screen<\/td><td class=\"v\">1 \u00b7 2 \u00b7 3 (L1 \u00b7 L2 \u00b7 L3)<\/td><\/tr>\n <tr><td class=\"k\">Earth conductors<\/td><td>Two tinned copper class 5 conductors in outer interstices, each with semi-conductive rubber covering<\/td><td class=\"v\">2 \u00d7 12.5 mm\u00b2 (\u03a3 25 mm\u00b2)<\/td><\/tr>\n <tr><td class=\"k\">Control element S(4\u00d70.5)<\/td><td>4 \u00d7 0.5 mm\u00b2 tinned copper class 5, EPR insulated; two twisted pairs; common tinned-copper braid screen; semi-conductive\/rubber sheath; placed in third interstice<\/td><td class=\"v\">\u00d8 \u2248 8.4 mm<\/td><\/tr>\n <tr><td class=\"k\">Control core colours<\/td><td>Pair A: white \/ brown \u00b7 Pair B: green \/ yellow (DIN 47100)<\/td><td class=\"v\">+ printed 1\u20134<\/td><\/tr>\n <tr><td class=\"k\">Lay-up<\/td><td>Three phase cores, earths and control element stranded with short lay length; water-blocking rubber filler<\/td><td class=\"v\">\u00d8 \u2248 40.1 mm<\/td><\/tr>\n <tr><td class=\"k\">Inner sheath<\/td><td>Rubber compound, extruded to fill interstices<\/td><td class=\"v\">\u2248 2.0 mm<\/td><\/tr>\n <tr><td class=\"k\">Reinforcement<\/td><td>Polyester anti-torsion braid between sheaths<\/td><td class=\"v\">\u2248 0.5 mm<\/td><\/tr>\n <tr><td class=\"k\">Outer sheath<\/td><td>CPE-based heavy-duty rubber, 5GM5 grade (DIN VDE 0207-21); water, oil, ozone and UV resistant; flame retardant<\/td><td class=\"v\">\u2248 3.5 mm, black<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">5<\/span>Dimensions and weights<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Characteristic<\/th><th>Value<\/th><th>Remark<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">Overall diameter, nominal<\/td><td class=\"v\">52.0 mm<\/td><td>Measured to IEC 60811-201\/-203<\/td><\/tr>\n <tr><td class=\"k\">Overall diameter, tolerance<\/td><td class=\"v\">\u00b1 1.5 mm (50.5 \u2013 53.5 mm)<\/td><td>Guaranteed range on the supplied drum<\/td><\/tr>\n <tr><td class=\"k\">Cable weight, nominal<\/td><td class=\"v\">\u2248 4.25 kg\/m (4,250 kg\/km)<\/td><td>Tolerance \u00b1 5 %<\/td><\/tr>\n <tr><td class=\"k\">Copper content<\/td><td class=\"v\">\u2248 1.62 kg\/m<\/td><td>Phase + earth + control<\/td><\/tr>\n <tr><td class=\"k\">Net weight, 180 m<\/td><td class=\"v\">\u2248 765 kg<\/td><td>Cable only<\/td><\/tr>\n <tr><td class=\"k\">Net weight, 200 m<\/td><td class=\"v\">\u2248 850 kg<\/td><td>Cable only<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">6<\/span>Electrical characteristics<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Characteristic<\/th><th>Value<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">Rated voltage U<sub>0<\/sub>\/U (U<sub>m<\/sub>)<\/td><td class=\"v\">6\/10 (12) kV, AC<\/td><\/tr>\n <tr><td class=\"k\">Routine AC test voltage, core to core and to earth<\/td><td class=\"v\">21 kV (3.5 U<sub>0<\/sub>), 5 min<\/td><\/tr>\n <tr><td class=\"k\">Partial discharge at 1.73 U<sub>0<\/sub> (10.4 kV)<\/td><td class=\"v\">\u2264 10 pC<\/td><\/tr>\n <tr><td class=\"k\">Max. DC resistance, phase conductor at 20 \u00b0C<\/td><td class=\"v\">0.393 \u03a9\/km<\/td><\/tr>\n <tr><td class=\"k\">Max. DC resistance, earth (2 \u00d7 12.5 mm\u00b2 in parallel) at 20 \u00b0C<\/td><td class=\"v\">0.795 \u03a9\/km<\/td><\/tr>\n <tr><td class=\"k\">Max. DC resistance, control conductor 0.5 mm\u00b2 at 20 \u00b0C<\/td><td class=\"v\">40.1 \u03a9\/km<\/td><\/tr>\n <tr><td class=\"k\">Insulation resistance at 20 \u00b0C (power cores)<\/td><td class=\"v\">\u2265 2,000 M\u03a9\u00b7km<\/td><\/tr>\n <tr><td class=\"k\">Capacitance per core, approx.<\/td><td class=\"v\">0.33 \u00b5F\/km<\/td><\/tr>\n <tr><td class=\"k\">Inductance per phase, approx.<\/td><td class=\"v\">0.34 mH\/km<\/td><\/tr>\n <tr><td class=\"k\">Current rating, in air 30 \u00b0C \/ immersed in water \u2264 40 \u00b0C<\/td><td class=\"v\">180 A \/ 180 A<\/td><\/tr>\n <tr><td class=\"k\">Short-circuit current, phase conductor (1 s, 90 \u2192 250 \u00b0C)<\/td><td class=\"v\">7.15 kA<\/td><\/tr>\n <tr><td class=\"k\">Control element rating \/ test voltage<\/td><td class=\"v\">300\/500 V \u00b7 2 kV AC, 5 min<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">7<\/span>Mechanical, thermal and immersion characteristics<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Characteristic<\/th><th>Value<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">Min. bending radius, fixed installation (6 \u00d7 D)<\/td><td class=\"v\">315 mm<\/td><\/tr>\n <tr><td class=\"k\">Min. bending radius, during handling \/ pump lifting (10 \u00d7 D)<\/td><td class=\"v\">520 mm<\/td><\/tr>\n <tr><td class=\"k\">Max. conductor temperature, continuous \/ short circuit<\/td><td class=\"v\">+90 \u00b0C \/ +250 \u00b0C<\/td><\/tr>\n <tr><td class=\"k\">Ambient temperature, flexing \/ fixed<\/td><td class=\"v\">\u221225 \u2026 +60 \u00b0C \/ \u221240 \u2026 +60 \u00b0C<\/td><\/tr>\n <tr><td class=\"k\">Water temperature, permanent immersion<\/td><td class=\"v\">up to +40 \u00b0C (motor limit)<\/td><\/tr>\n <tr><td class=\"k\">Max. permanent immersion depth<\/td><td class=\"v\">100 m water column (1.0 MPa)<\/td><\/tr>\n <tr><td class=\"k\">Max. static tensile load on phase conductors (15 N\/mm\u00b2)<\/td><td class=\"v\">2,250 N<\/td><\/tr>\n <tr><td class=\"k\">Flame propagation<\/td><td class=\"v\">IEC 60332-1-2<\/td><\/tr>\n <tr><td class=\"k\">Oil, ozone and UV resistance<\/td><td class=\"v\">Yes (5GM5 \/ CPE)<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <div class=\"callout warn\"><b>Handling note:<\/b> the pump must be lifted by its lifting chain or wire \u2014 never by the cable. Keep at least 520 mm bending radius at the cable entry and cable holder, and use a support grip every 3\u20135 m on vertical runs.<\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">8<\/span>Application engineering check for the Flygt 6000 V motor<\/h2>\n <h3>8.1 Voltage class selection<\/h3>\n <p>The motor’s rated voltage of 6000 V is the phase-to-phase voltage U. A 3.6\/6 kV cable (U<sub>m<\/sub> 7.2 kV) is rated exactly at the motor voltage and leaves only the IEC voltage-tolerance margin. A 6\/10 kV cable (U<sub>m<\/sub> 12 kV) gives a thicker EPR wall, a lower electrical stress in permanent immersion and a large reserve against supply over-voltage, switching transients and long-term water ageing. <b>FeiChun recommends 6\/10 kV<\/b> for this duty, and this datasheet is based on it.<\/p>\n <h3>8.2 Current-carrying capacity<\/h3>\n <p>Motor current \u2248 30 A versus 180 A rating of 3 \u00d7 50 mm\u00b2 \u2014 a utilisation of about 17 %. Conductor operating temperature will stay close to the water temperature.<\/p>\n <h3>8.3 Voltage drop over 180 m \/ 200 m<\/h3>\n <p>\u0394U = \u221a3 \u00b7 I \u00b7 L \u00b7 (R<sub>90<\/sub> cos \u03c6 + X sin \u03c6), with I = 30 A, R<sub>90<\/sub> \u2248 0.50 \u03a9\/km, X \u2248 0.10 \u03a9\/km, cos \u03c6 = 0.83:<\/p>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Length<\/th><th>\u0394U<\/th><th>\u0394U as % of 6000 V<\/th><th>Result<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"v\">180 m<\/td><td class=\"v\">\u2248 4.4 V<\/td><td class=\"v\">\u2248 0.07 %<\/td><td class=\"ok\">Negligible<\/td><\/tr>\n <tr><td class=\"v\">200 m<\/td><td class=\"v\">\u2248 4.9 V<\/td><td class=\"v\">\u2248 0.08 %<\/td><td class=\"ok\">Negligible<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <h3>8.4 Earth and control functions<\/h3>\n <p>The two split earth conductors (\u03a3 25 mm\u00b2) are embedded in semi-conductive rubber in contact with the core screens, forming the protective-earth and screen-return path required for 6 kV operation. The S(4\u00d70.5) screened pairs carry the motor’s monitoring circuits (thermal and leakage sensors) with their common screen protecting them from the adjacent 6 kV field.<\/p>\n <h3>8.5 Cable entry<\/h3>\n <p>The overall diameter of 52.0 \u00b1 1.5 mm is designed to suit the original Flygt MV cable entry. The cable is terminated in the entry with a Flygt grommet\/seal sleeve matched to the measured OD; FeiChun will confirm the final OD against the original cable marking and entry photographs before production starts.<\/p>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">9<\/span>Factory tests and test reports supplied<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Test<\/th><th>Method \/ criterion<\/th><th>Report<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">High-voltage AC withstand<\/td><td>21 kV, 5 min, each core to all others and earth \u2014 no breakdown<\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <tr><td class=\"k\">Partial discharge<\/td><td>IEC 60885-3; \u2264 10 pC at 1.73 U<sub>0<\/sub><\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <tr><td class=\"k\">Insulation resistance<\/td><td>500\/2500 V DC, corrected to 20 \u00b0C; \u2265 2,000 M\u03a9\u00b7km<\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <tr><td class=\"k\">Water immersion test<\/td><td>Full drum length immersed in water, then HV and insulation resistance repeated \u2014 no breakdown, no IR drop beyond limit<\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <tr><td class=\"k\">Conductor resistance<\/td><td>IEC 60228 limits, all phase, earth and control conductors<\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <tr><td class=\"k\">Control element<\/td><td>Continuity, pair identity, screen continuity, 2 kV AC test<\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <tr><td class=\"k\">Dimensional check<\/td><td>OD, insulation and sheath thickness, length and joint-free confirmation<\/td><td class=\"ok\">Supplied<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <p>A complete factory test report and inspection certificate is issued for the actual drum and sent with the shipping documents. Sample reports from previous production of the same design can be provided before the order is placed.<\/p>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">10<\/span>Supply, marking and packing<\/h2>\n <div class=\"tbl-wrap\"><table>\n <thead><tr><th>Item<\/th><th>Detail<\/th><\/tr><\/thead>\n <tbody>\n <tr><td class=\"k\">Delivery length<\/td><td>One continuous length of 180 m or 200 m on one drum, without joints or repairs (no minimum order quantity applies)<\/td><\/tr>\n <tr><td class=\"k\">Sheath marking<\/td><td class=\"v\">FEICHUN FC-FLX\u2122 SUB-MV (N)TSCGEW\u00d6U 6\/10 kV 3\u00d750+2\u00d725\/2+S(4\u00d70.5) 2026 + metre marks<\/td><\/tr>\n <tr><td class=\"k\">Drum<\/td><td>Steel-reinforced wooden drum, barrel \u00d8 \u2265 1,100 mm; cable ends sealed with heat-shrink caps; drum lagged<\/td><\/tr>\n <tr><td class=\"k\">Drum size \/ gross weight (est.)<\/td><td class=\"v\">Flange \u2248 \u00d8 1,800 \u00d7 W 1,100 mm \u00b7 \u2248 1,150 kg (180 m) \/ \u2248 1,250 kg (200 m)<\/td><\/tr>\n <tr><td class=\"k\">HS code<\/td><td class=\"v\">8544.60<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n<\/section>\n\n\n<section>\n <h2><span class=\"n\">11<\/span>Written confirmation of suitability<\/h2>\n <div class=\"declaration\">\n <div class=\"stamp\">FEICHUN<br>SPECIAL<br>CABLES<br>QA<\/div>\n <h3>Declaration of suitability \u2014 FC-TDS-SUB-2026-969E<\/h3>\n <p>Anhui FeiChun Special Cable Co., Ltd. hereby confirms that the cable FC-FLX\u2122 SUB-MV (N)TSCGEW\u00d6U 6\/10 kV 3\u00d750+2\u00d725\/2+S(4\u00d70.5) mm\u00b2, manufactured to this datasheet:<\/p>\n <ol>\n <li>is suitable for continuous operation with the Flygt 3400\/883 pump and motor M54-60-6MDY\/04, 250 kW, 6000 V, 3~, 50 Hz, star connection, rated current \u2248 30 A;<\/li>\n <li>is suitable for permanent immersion in water at up to 40 \u00b0C and up to 100 m depth;<\/li>\n <li>has EPR insulation and a waterproof CPE rubber outer sheath, and contains the S(4\u00d70.5) control element as two copper twisted pairs with a common screen, with no optical fibres;<\/li>\n <li>is designed to fit the original Flygt cable entry, and will be supplied as one continuous 180 m or 200 m length without joints.<\/li>\n <\/ol>\n <div class=\"sign\">\n <div><b>Zihao Yang<\/b>Technical Sales Manager, International Business Department<\/div>\n <div><b>Quality Assurance Department<\/b>Anhui FeiChun Special Cable Co., Ltd. \u00b7 Date: 18.09.2026<\/div>\n <\/div>\n <\/div>\n<\/section>\n\n<div class=\"ip\"><b>Trademark and intellectual property notice.<\/b> Xylem, Flygt and part number 950023 are trademarks or identifiers of their respective owners and are cited only to identify the equipment for which this cable is intended; FeiChun has no affiliation with those owners. FC-FLX\u2122 and FeiChun\u00ae are trademarks of Anhui FeiChun Special Cable Co., Ltd. This datasheet, including the cross-section drawing, is protected under the Copyright Law and Anti-Unfair Competition Law of the People’s Republic of China and the Copyright Act 1968 (Cth) of Australia; it may not be copied or passed to third parties for manufacturing purposes without written consent. Values marked “\u2248” are nominal design values; binding values are those in the factory test report of the supplied drum.<\/div>\n\n<\/div>\n\n<div class=\"contact\">\n <p><b>Anhui FeiChun Special Cable Co., Ltd.<\/b><br>International Business Department \u00b7 Hefei, Anhui Province, China<br>www.feichuncables.com<\/p>\n <p>Technical: <a href=\"mailto:Tech@feichuncables.com\">Tech@feichuncables.com<\/a><br>Mining & pump cables: <a href=\"mailto:mining@feichuncables.com\">mining@feichuncables.com<\/a><br>Sales: <a href=\"mailto:zihao.yang@feichuncables.com\">zihao.yang@feichuncables.com<\/a><br>WhatsApp: +86 138 5512 3218<\/p>\n<\/div>\n<div class=\"foot\"><span>FC-TDS-SUB-2026-969E \u00b7 Rev A \u00b7 18.09.2026<\/span><span>FC-FLX\u2122 SUB-MV 6\/10 kV 3\u00d750+2\u00d725\/2+S(4\u00d70.5)<\/span><\/div>\n<div class=\"runfoot\">FC-TDS-SUB-2026-969E \u00b7 FC-FLX\u2122 SUB-MV 6\/10 kV 3\u00d750+2\u00d725\/2+S(4\u00d70.5) \u00b7 Pavlodar River Port<\/div>\n<\/div>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"This datasheet defines a flexible medium-voltage power cable with integrated screened control pairs, built to the (N)TSCGEW\u00d6U design principle of DIN VDE 0250-813 for heavy-duty rubber-insulated flexible cables. It is engineered as a direct replacement for the original supply cable of a Flygt 3400\/883 submersible pump, for continuous operation with a 6000 V three-phase motor while permanently immersed in water.\nThe construction matches the requirement exactly: three 50 mm\u00b2 phase conductors, two split earth conductors totalling 25 mm\u00b2, and one S(4\u00d70.5) control element made of four copper conductors arranged as two twisted pairs under a common screen. No optical fibres, no external control cable and no 3\u00d750+3\u00d725\/3 substitution are used.","protected":false},"author":1,"featured_media":77097,"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":[8,94],"tags":[],"class_list":["post-77094","post","type-post","status-publish","format-standard","has-post-thumbnail","category-cranes-and-material-handling-cable","category-din-vde-0250-mining-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/77094","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=77094"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/77094\/revisions"}],"predecessor-version":[{"id":77099,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/77094\/revisions\/77099"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/77097"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=77094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=77094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=77094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":77094,"date":"2026-09-18T13:30:05","date_gmt":"2026-09-18T05:30:05","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=77094"},"modified":"2026-09-18T13:30:09","modified_gmt":"2026-09-18T05:30:09","slug":"medium-voltage-submersible-pump-motor-cable-fc-flx-sub-mv-ntscgewou-6-10-kv-3x50-2x25-2-s4x0-5-mm%c2%b2","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/medium-voltage-submersible-pump-motor-cable-fc-flx-sub-mv-ntscgewou-6-10-kv-3x50-2x25-2-s4x0-5-mm%c2%b2\/","title":{"rendered":"Medium-Voltage Submersible Pump Motor Cable FC-FLX\u2122 SUB-MV (N)TSCGEW\u00d6U 6\/10 kV 3\u00d750 + 2\u00d725\/2 + S(4\u00d70.5) mm\u00b2"},"content":{"rendered":"\n

<\/p>\n\n\n\n

Continuous-length replacement cable for Xylem Flygt pump 3400\/883 with motor M54-60-6MDY\/04 (250 kW, 6000 V, 50 Hz) \u2014 replaces original Xylem part no. 950023.<\/p>\n\n\n\n