{"id":6590,"date":"2026-02-09T11:59:27","date_gmt":"2026-02-09T03:59:27","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=6590"},"modified":"2026-02-09T11:59:29","modified_gmt":"2026-02-09T03:59:29","slug":"yellow-vs-red-sheath-decoding-nexans-rheyfirm-color-codes","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/yellow-vs-red-sheath-decoding-nexans-rheyfirm-color-codes\/","title":{"rendered":"Yellow vs. Red Sheath: Decoding Nexans RHEYFIRM\u00ae Color Codes"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Is Yellow Strictly for 1kV in Their Catalog? \u9ec4\u8272\u62a4\u5957\u662f\u5426\u4e13\u63071kV\u7535\u7f06\uff1f\u89e3\u8bfb\u8010\u514b\u68ee\u7535\u7f06\u989c\u8272\u7f16\u7801\u7cfb\u7edf<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"a2a9aa\" data-has-transparency=\"false\" style=\"--dominant-color: #a2a9aa;\" loading=\"lazy\" decoding=\"async\" width=\"884\" height=\"628\" sizes=\"auto, (max-width: 884px) 100vw, 884px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-884x628.avif\" alt=\"\" class=\"wp-image-6591 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-884x628.avif 884w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-300x213.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-768x546.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-400x284.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-800x568.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769-832x591.avif 832w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-769.avif 895w\" \/><\/figure>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width,initial-scale=1.0\">\n<meta name=\"description\" content=\"Technical analysis of Nexans RHEYFIRM\u00ae and RHEYCORD\u00ae cable sheath color codes. Is yellow strictly for 1kV? Understanding red vs yellow jacket identification for safety.\">\n<title>Yellow vs. Red Sheath: Decoding Nexans RHEYFIRM\u00ae Color Codes | Anhui Feichun Special Cable<\/title>\n<style>\n:root{--bg:#fff;--text:#1a1a2e;--text-secondary:#4a4a68;--border:#d0d0e0;--table-header:#f0f4f8;--table-alt:#f8fafc;--accent:#0066cc;--accent-dark:#004999;--card-bg:#fff;--code-bg:#f5f5f5;--warning-bg:#fff8e6;--warning-border:#e6a700;--success-bg:#e8f5e9;--success-border:#2e7d32}\n@media(prefers-color-scheme:dark){:root{--bg:#0d1117;--text:#e6edf3;--text-secondary:#8b949e;--border:#30363d;--table-header:#161b22;--table-alt:#161b22;--accent:#58a6ff;--accent-dark:#79c0ff;--card-bg:#21262d;--code-bg:#161b22;--warning-bg:#2d2a1f;--warning-border:#d4a72c;--success-bg:#1a2e1c;--success-border:#4caf50}}\n*{box-sizing:border-box;margin:0;padding:0}\nhtml{font-size:16px;scroll-behavior:smooth}\nbody{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;padding:0;max-width:100%}\n.container{max-width:960px;margin:0 auto;padding:2rem 1.5rem}\nheader{border-bottom:3px solid var(--accent);padding-bottom:1.5rem;margin-bottom:2rem}\nh1{font-size:1.65rem;font-weight:700;color:var(--text);margin-bottom:.5rem;line-height:1.3}\n.subtitle{font-size:.95rem;color:var(--text-secondary);margin-bottom:.75rem}\n.company-name{font-size:.9rem;color:var(--accent);font-weight:600}\n.company-cn{font-size:.85rem;color:var(--text-secondary);font-weight:400}\n.meta{font-size:.8rem;color:var(--text-secondary);margin-top:.75rem}\nh2{font-size:1.3rem;font-weight:600;color:var(--text);margin:2rem 0 1rem;padding-bottom:.5rem;border-bottom:2px solid var(--border)}\nh3{font-size:1.05rem;font-weight:600;color:var(--text);margin:1.5rem 0 .75rem}\np{margin-bottom:1rem;text-align:justify}\n.highlight-box{background:var(--card-bg);border-left:4px solid var(--accent);padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 6px 6px 0}\n.warning-box{background:var(--warning-bg);border-left:4px solid var(--warning-border);padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 6px 6px 0}\n.success-box{background:var(--success-bg);border-left:4px solid var(--success-border);padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 6px 6px 0}\n.highlight-box p,.warning-box p,.success-box p{margin-bottom:.5rem}\n.highlight-box p:last-child,.warning-box p:last-child,.success-box p:last-child{margin-bottom:0}\ntable{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.9rem}\nth,td{padding:.7rem .9rem;text-align:left;border:1px solid var(--border)}\nth{background:var(--table-header);font-weight:600;white-space:nowrap}\ntr:nth-child(even){background:var(--table-alt)}\ntd:first-child{font-weight:500}\n.spec-value{font-family:\"SF Mono\",Monaco,Consolas,monospace;font-size:.85rem}\n.color-red{color:#d32f2f;font-weight:600}\n.color-yellow{color:#f9a825;font-weight:600}\n.color-black{color:var(--text);font-weight:600}\ncode{background:var(--code-bg);padding:.15rem .4rem;border-radius:3px;font-size:.85rem;font-family:\"SF Mono\",Monaco,Consolas,monospace}\n.color-sample{display:inline-block;width:16px;height:16px;border-radius:3px;vertical-align:middle;margin-right:6px;border:1px solid var(--border)}\n.sample-red{background:#c62828}\n.sample-yellow{background:#f9a825}\n.sample-black{background:#212121}\n.references{margin-top:2.5rem;padding-top:1.5rem;border-top:2px solid var(--border)}\n.references h2{border-bottom:none;margin-top:0}\n.ref-list{font-size:.85rem;color:var(--text-secondary)}\n.ref-list li{margin-bottom:.6rem;word-break:break-word}\n.ref-list a{color:var(--accent);text-decoration:none}\n.ref-list a:hover{text-decoration:underline}\n.contact-section{background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:1.5rem;margin-top:2rem}\n.contact-section h3{margin-top:0;color:var(--accent)}\n.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1rem}\n.contact-item{font-size:.9rem}\n.contact-item strong{display:block;color:var(--text);margin-bottom:.25rem}\n.contact-item a{color:var(--accent);text-decoration:none}\n.note{font-size:.85rem;color:var(--text-secondary);font-style:italic;margin:1rem 0}\n.key-finding{background:var(--card-bg);border:2px solid var(--accent);padding:1.25rem;border-radius:8px;margin:1.5rem 0}\n.key-finding h4{color:var(--accent);margin:0 0 .5rem 0;font-size:1rem}\nfooter{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);font-size:.8rem;color:var(--text-secondary);text-align:center}\n@media(max-width:600px){.container{padding:1rem}h1{font-size:1.35rem}h2{font-size:1.1rem}table{font-size:.8rem}th,td{padding:.5rem}}\n<\/style>\n<\/head>\n<body>\n<article class=\"container\">\n<header>\n<h1>Yellow vs. Red Sheath: Decoding Nexans RHEYFIRM\u00ae Color Codes<\/h1>\n<p class=\"subtitle\">Is Yellow Strictly for 1kV in Their Catalog? \u9ec4\u8272\u62a4\u5957\u662f\u5426\u4e13\u63071kV\u7535\u7f06\uff1f\u89e3\u8bfb\u8010\u514b\u68ee\u7535\u7f06\u989c\u8272\u7f16\u7801\u7cfb\u7edf<\/p>\n<p class=\"company-name\">Anhui Feichun Special Cable Co., Ltd. <span class=\"company-cn\">\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8<\/span><\/p>\n<p class=\"meta\">Technical Analysis | DIN VDE 0207 | Cable Safety Identification | Industrial Color Standards<\/p>\n<\/header>\n\n<section>\n<h2>1. Executive Summary \/ \u6267\u884c\u6458\u8981<\/h2>\n<div class=\"key-finding\">\n<h4>Key Finding \/ \u6838\u5fc3\u53d1\u73b0<\/h4>\n<p>In the Nexans handling cable catalog, <span class=\"color-yellow\">yellow<\/span> outer sheaths are predominantly used for <strong>low-voltage (0.6\/1 kV)<\/strong> RHEYCORD\u00ae series cables, while <span class=\"color-red\">red<\/span> outer sheaths identify <strong>medium-voltage (3\u201330 kV)<\/strong> RHEYFIRM\u00ae series cables. This color differentiation serves as a critical visual safety indicator for voltage level identification in industrial environments.<\/p>\n<p class=\"note\">\u5728\u8010\u514b\u68ee\u642c\u8fd0\u7535\u7f06\u76ee\u5f55\u4e2d\uff0c\u9ec4\u8272\u5916\u62a4\u5957\u4e3b\u8981\u7528\u4e8e\u4f4e\u538b(0.6\/1 kV) RHEYCORD\u00ae\u7cfb\u5217\u7535\u7f06\uff0c\u800c\u7ea2\u8272\u5916\u62a4\u5957\u7528\u4e8e\u6807\u8bc6\u4e2d\u538b(3\u201330 kV) RHEYFIRM\u00ae\u7cfb\u5217\u7535\u7f06\u3002\u8fd9\u79cd\u989c\u8272\u533a\u5206\u662f\u5de5\u4e1a\u73af\u5883\u4e2d\u7535\u538b\u7b49\u7ea7\u8bc6\u522b\u7684\u91cd\u8981\u89c6\u89c9\u5b89\u5168\u6307\u6807\u3002<\/p>\n<\/div>\n<\/section>\n\n<section>\n<h2>2. Nexans Reeling Cable Color Code System \/ \u8010\u514b\u68ee\u5377\u7b52\u7535\u7f06\u989c\u8272\u7f16\u7801\u7cfb\u7edf<\/h2>\n<p>Nexans Deutschland GmbH, headquartered in Hannover, Germany, has established a systematic color coding convention for their industrial reeling cable product lines. This convention, while not mandated by DIN VDE standards as a regulatory requirement, has become an industry-recognized practice that enhances workplace safety through immediate visual voltage identification.<\/p>\n\n<table>\n<caption style=\"text-align:left;margin-bottom:.75rem;font-weight:600;\">Table 1: Nexans Reeling Cable Series \u2014 Color Code Overview<\/caption>\n<thead>\n<tr><th>Cable Series<\/th><th>Sheath Color<\/th><th>Voltage Rating<\/th><th>Primary Standard<\/th><th>Application<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>RHEYCORD\u00ae NSHTOEU-J<\/td><td><span class=\"color-sample sample-black\"><\/span><span class=\"color-black\">Black<\/span><\/td><td class=\"spec-value\">0.6\/1 kV<\/td><td>DIN VDE 0250-814<\/td><td>Standard duty reeling<\/td><\/tr>\n<tr><td>RHEYCORD\u00ae (RTS) (N)SHTOEU-J<\/td><td><span class=\"color-sample sample-yellow\"><\/span><span class=\"color-yellow\">Yellow<\/span><\/td><td class=\"spec-value\">0.6\/1 kV<\/td><td>DIN VDE 0250-814<\/td><td>Extra heavy duty reeling<\/td><\/tr>\n<tr><td>RHEYFIRM\u00ae (SI) NTMCGCWOEUS<\/td><td><span class=\"color-sample sample-red\"><\/span><span class=\"color-red\">Red<\/span><\/td><td class=\"spec-value\">6\/10\u201318\/30 kV<\/td><td>DIN VDE 0250-813<\/td><td>Single-core MV power<\/td><\/tr>\n<tr><td>RHEYFIRM\u00ae (RTS) (N)TSCGEWTOEUS<\/td><td><span class=\"color-sample sample-red\"><\/span><span class=\"color-red\">Red<\/span><\/td><td class=\"spec-value\">6\/10\u201318\/30 kV<\/td><td>DIN VDE 0250-813<\/td><td>Multi-core MV reeling<\/td><\/tr>\n<\/tbody>\n<\/table>\n<p class=\"note\">\u88681\uff1a\u8010\u514b\u68ee\u5377\u7b52\u7535\u7f06\u7cfb\u5217\u2014\u2014\u989c\u8272\u7f16\u7801\u6982\u89c8<\/p>\n\n<h3>2.1 The Yellow Sheath: RHEYCORD\u00ae (RTS) Series \/ \u9ec4\u8272\u62a4\u5957\uff1aRHEYCORD\u00ae (RTS)\u7cfb\u5217<\/h3>\n<p>The yellow outer sheath in Nexans&#8217; catalog is specifically associated with the RHEYCORD\u00ae (RTS) (N)SHTOEU-J extra heavy duty reeling cables rated at 0.6\/1 kV. According to Nexans technical documentation, these cables feature an inner sheath of special synthetic rubber (superior to GM1b compound) with the outer sheath colored yellow for immediate identification.<\/p>\n\n<div class=\"highlight-box\">\n<p><strong>RHEYCORD\u00ae (RTS) Yellow Cable Characteristics \/ \u9ec4\u8272\u7535\u7f06\u7279\u6027\uff1a<\/strong><\/p>\n<p>Voltage Rating: <code>0.6\/1 (1.2) kV<\/code> \u2014 Designed for low-voltage control and power supplies<\/p>\n<p>Applications: Motor-driven reels, spring-operated reels, drum spreaders, festoon systems, and hoisting systems requiring simultaneous tensile and torsional stress resistance<\/p>\n<p>Temperature Range: <code>-40\u00b0C to +90\u00b0C<\/code><\/p>\n<p>Standard: In line with DIN VDE 0250 Part 814<\/p>\n<\/div>\n\n<h3>2.2 The Red Sheath: RHEYFIRM\u00ae Series \/ \u7ea2\u8272\u62a4\u5957\uff1aRHEYFIRM\u00ae\u7cfb\u5217<\/h3>\n<p>Red outer sheaths are characteristic of the RHEYFIRM\u00ae medium-voltage cable series, manufactured with heavy-duty chlorinated rubber compound 5GM5 per DIN VDE 0207 Part 21. The red coloration serves as a critical warning indicator for the elevated voltage hazard associated with these cables.<\/p>\n\n<div class=\"warning-box\">\n<p><strong>\u26a0 Safety Critical: Medium Voltage Hazard \/ \u5b89\u5168\u5173\u952e\uff1a\u4e2d\u538b\u5371\u9669<\/strong><\/p>\n<p>RHEYFIRM\u00ae cables operate at voltages from 6\/10 kV up to 18\/30 kV (Um = 36 kV). The red sheath color provides immediate visual identification of potentially lethal voltage levels. Contact with energized medium-voltage conductors will cause severe injury or death.<\/p>\n<\/div>\n<\/section>\n\n<section>\n<h2>3. DIN VDE 0207 Sheath Compound Specifications \/ \u62a4\u5957\u6750\u6599\u89c4\u8303<\/h2>\n<p>The German standard DIN VDE 0207 Part 21 specifies the requirements for thermosetting sheath compounds used in flexible cables. While the standard defines mechanical and chemical properties for compounds such as 5GM3 and 5GM5, it does not mandate specific outer sheath colors. The color coding system is a manufacturer convention adopted for safety and identification purposes.<\/p>\n\n<table>\n<caption style=\"text-align:left;margin-bottom:.75rem;font-weight:600;\">Table 2: DIN VDE 0207 Part 21 Sheath Compound Properties<\/caption>\n<thead>\n<tr><th>Property<\/th><th>5GM3 Compound<\/th><th>5GM5 Compound<\/th><th>Test Standard<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>Base Material<\/td><td class=\"spec-value\">PCP (Polychloroprene)<\/td><td class=\"spec-value\">PCP (Polychloroprene)<\/td><td>DIN VDE 0207-21<\/td><\/tr>\n<tr><td>Tensile Strength (min.)<\/td><td class=\"spec-value\">8 N\/mm\u00b2<\/td><td class=\"spec-value\">10 N\/mm\u00b2<\/td><td>DIN VDE 0473<\/td><\/tr>\n<tr><td>Elongation at Break<\/td><td class=\"spec-value\">\u2265300%<\/td><td class=\"spec-value\">\u2265350%<\/td><td>DIN VDE 0473<\/td><\/tr>\n<tr><td>Abrasion Resistance<\/td><td class=\"spec-value\">\u2264300 mm\u00b3<\/td><td class=\"spec-value\">\u2264300 mm\u00b3<\/td><td>DIN 53516<\/td><\/tr>\n<tr><td>Oil Resistance<\/td><td class=\"spec-value\">Yes<\/td><td class=\"spec-value\">Yes (enhanced)<\/td><td>EN 60811-2-1<\/td><\/tr>\n<tr><td>Flame Retardance<\/td><td class=\"spec-value\">IEC 60332-1<\/td><td class=\"spec-value\">IEC 60332-1-2<\/td><td>EN 60332<\/td><\/tr>\n<tr><td>Typical Application<\/td><td class=\"spec-value\">LV cables<\/td><td class=\"spec-value\">MV cables<\/td><td>\u2014<\/td><\/tr>\n<\/tbody>\n<\/table>\n<p class=\"note\">\u88682\uff1aDIN VDE 0207\u7b2c21\u90e8\u5206\u62a4\u5957\u6750\u6599\u6027\u80fd\u89c4\u8303<\/p>\n\n<h3>3.1 Why Red for Medium Voltage? \/ \u4e3a\u4f55\u4e2d\u538b\u7535\u7f06\u4f7f\u7528\u7ea2\u8272\uff1f<\/h3>\n<p>The selection of red as the standard color for medium-voltage reeling cables follows established industrial safety conventions where red signifies danger and elevated hazard levels. In the context of cable identification, red serves multiple safety functions:<\/p>\n<p>First, red provides immediate visual warning of high-voltage hazard potential. Second, it enables rapid differentiation from low-voltage cables in complex industrial installations. Third, it supports compliance with lockout\/tagout procedures by facilitating quick voltage level identification. Fourth, the high visibility of red enhances safety during emergency situations and maintenance operations.<\/p>\n<p class=\"note\">\u7ea2\u8272\u88ab\u9009\u4e3a\u4e2d\u538b\u5377\u7b52\u7535\u7f06\u7684\u6807\u51c6\u989c\u8272\u662f\u9075\u5faa\u5de5\u4e1a\u5b89\u5168\u60ef\u4f8b\uff0c\u7ea2\u8272\u4ee3\u8868\u5371\u9669\u548c\u8f83\u9ad8\u7684\u5371\u9669\u7b49\u7ea7\u3002\u5728\u7535\u7f06\u8bc6\u522b\u65b9\u9762\uff0c\u7ea2\u8272\u5177\u6709\u591a\u91cd\u5b89\u5168\u529f\u80fd\uff1a\u7acb\u5373\u63d0\u4f9b\u9ad8\u538b\u5371\u9669\u7684\u89c6\u89c9\u8b66\u544a\uff1b\u4f7f\u4f4e\u538b\u548c\u4e2d\u538b\u7535\u7f06\u5728\u590d\u6742\u5de5\u4e1a\u88c5\u7f6e\u4e2d\u5feb\u901f\u533a\u5206\uff1b\u652f\u6301\u9501\u5b9a\/\u6302\u724c\u7a0b\u5e8f\uff1b\u5728\u7d27\u6025\u60c5\u51b5\u548c\u7ef4\u62a4\u64cd\u4f5c\u4e2d\u63d0\u9ad8\u53ef\u89c1\u5ea6\u3002<\/p>\n<\/section>\n\n<section>\n<h2>4. Is Yellow &#8220;Strictly&#8221; for 1kV? Technical Analysis \/ \u9ec4\u8272\u662f\u5426&#8221;\u4e25\u683c&#8221;\u9650\u4e8e1kV\uff1f<\/h2>\n\n<div class=\"success-box\">\n<p><strong>Answer \/ \u7b54\u6848\uff1a<\/strong> In the standard Nexans catalog, <span class=\"color-yellow\">yellow<\/span> is indeed associated with the 0.6\/1 kV RHEYCORD\u00ae (RTS) series. However, this is a <em>manufacturer convention<\/em>, not a regulatory mandate. Custom orders may specify alternative colors.<\/p>\n<\/div>\n\n<h3>4.1 Standard Catalog Configuration \/ \u6807\u51c6\u76ee\u5f55\u914d\u7f6e<\/h3>\n<table>\n<caption style=\"text-align:left;margin-bottom:.75rem;font-weight:600;\">Table 3: Nexans Standard Color-Voltage Associations<\/caption>\n<thead>\n<tr><th>Voltage Class<\/th><th>Standard Color<\/th><th>Cable Type<\/th><th>Catalog Status<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td class=\"spec-value\">0.6\/1 kV (LV)<\/td><td><span class=\"color-sample sample-black\"><\/span>Black<\/td><td>RHEYCORD\u00ae NSHTOEU-J<\/td><td>Standard catalog<\/td><\/tr>\n<tr><td class=\"spec-value\">0.6\/1 kV (LV Extra HD)<\/td><td><span class=\"color-sample sample-yellow\"><\/span>Yellow<\/td><td>RHEYCORD\u00ae (RTS)<\/td><td>Standard catalog<\/td><\/tr>\n<tr><td class=\"spec-value\">3.6\/6 \u2013 18\/30 kV (MV)<\/td><td><span class=\"color-sample sample-red\"><\/span>Red<\/td><td>RHEYFIRM\u00ae series<\/td><td>Standard catalog<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n<h3>4.2 Custom Color Options \/ \u5b9a\u5236\u989c\u8272\u9009\u9879<\/h3>\n<p>According to CSE Industrial Electrical Distributors&#8217; documentation on Nexans handling cables, &#8220;Other sheath qualities and colours on request&#8221; is available for both RHEYCORD\u00ae and RHEYFIRM\u00ae series. This indicates that while yellow and red are the standard catalog colors, customers may specify alternative colors for specific project requirements.<\/p>\n\n<div class=\"highlight-box\">\n<p><strong>Important Consideration \/ \u91cd\u8981\u8003\u8651\u56e0\u7d20\uff1a<\/strong><\/p>\n<p>When specifying custom sheath colors, ensure that the alternative color does not conflict with local electrical safety codes or site-specific color identification systems. Maintain clear documentation of any non-standard color coding to prevent confusion during installation and maintenance.<\/p>\n<p class=\"note\">\u6307\u5b9a\u5b9a\u5236\u62a4\u5957\u989c\u8272\u65f6\uff0c\u8bf7\u786e\u4fdd\u66ff\u4ee3\u989c\u8272\u4e0d\u4e0e\u5f53\u5730\u7535\u6c14\u5b89\u5168\u89c4\u8303\u6216\u73b0\u573a\u7279\u5b9a\u989c\u8272\u8bc6\u522b\u7cfb\u7edf\u51b2\u7a81\u3002\u4fdd\u6301\u975e\u6807\u51c6\u989c\u8272\u7f16\u7801\u7684\u6e05\u6670\u6587\u6863\u8bb0\u5f55\uff0c\u4ee5\u9632\u6b62\u5b89\u88c5\u548c\u7ef4\u62a4\u671f\u95f4\u7684\u6df7\u6dc6\u3002<\/p>\n<\/div>\n<\/section>\n\n<section>\n<h2>5. Industry-Wide Color Conventions \/ \u884c\u4e1a\u901a\u7528\u989c\u8272\u60ef\u4f8b<\/h2>\n<p>The Nexans color coding approach aligns with broader industry practices observed across multiple European cable manufacturers specializing in reeling and trailing cables for cranes, mining, and material handling applications.<\/p>\n\n<table>\n<caption style=\"text-align:left;margin-bottom:.75rem;font-weight:600;\">Table 4: Industry Color Conventions Comparison<\/caption>\n<thead>\n<tr><th>Manufacturer<\/th><th>LV Cable Color<\/th><th>MV Cable Color<\/th><th>Standard Reference<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>Nexans (Germany)<\/td><td>Yellow \/ Black<\/td><td class=\"color-red\">Red<\/td><td>DIN VDE 0250<\/td><\/tr>\n<tr><td>Tratos Group (UK\/Italy)<\/td><td>Black<\/td><td class=\"color-red\">Red<\/td><td>DIN VDE 0250<\/td><\/tr>\n<tr><td>Prysmian PROTOLON<\/td><td>Black<\/td><td class=\"color-red\">Red<\/td><td>DIN VDE 0250-813<\/td><\/tr>\n<tr><td>Incore Cables (Netherlands)<\/td><td>Black<\/td><td class=\"color-red\">Bright Red<\/td><td>DIN VDE 0207<\/td><\/tr>\n<\/tbody>\n<\/table>\n<p class=\"note\">\u88684\uff1a\u884c\u4e1a\u989c\u8272\u60ef\u4f8b\u5bf9\u6bd4<\/p>\n\n<p>The consistency of red coloration for medium-voltage cables across manufacturers reflects an industry consensus on safety-critical visual identification. This standardization, though voluntary, significantly enhances safety in multi-vendor industrial environments where cables from different manufacturers may be installed in close proximity.<\/p>\n<\/section>\n\n<section>\n<h2>6. Voltage Identification Best Practices \/ \u7535\u538b\u8bc6\u522b\u6700\u4f73\u5b9e\u8df5<\/h2>\n<p>Proper identification of cable voltage ratings extends beyond sheath color and should incorporate multiple verification methods for maximum safety assurance.<\/p>\n\n<h3>6.1 Primary Identification Methods \/ \u4e3b\u8981\u8bc6\u522b\u65b9\u6cd5<\/h3>\n<p>Cable markings represent the most authoritative identification method. Per DIN VDE 0250-813, medium-voltage trailing cables must bear embossed (raised) markings on the outer sheath at intervals not exceeding one meter. These markings include the manufacturer name, cable designation code, voltage rating, cross-section, and year of manufacture.<\/p>\n\n<table>\n<caption style=\"text-align:left;margin-bottom:.75rem;font-weight:600;\">Table 5: Cable Marking Examples<\/caption>\n<thead>\n<tr><th>Cable Type<\/th><th>Example Marking<\/th><th>Voltage Indicated<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>RHEYCORD\u00ae (RTS)<\/td><td class=\"spec-value\">RHEYCORD (RTS) (N)SHTOEU-J 90\/-40 1kV<\/td><td class=\"spec-value\">0.6\/1 kV<\/td><\/tr>\n<tr><td>RHEYFIRM\u00ae (RTS)<\/td><td class=\"spec-value\">RHEYFIRM\u00ae(RTS) R-(N)TSCGEWTOEUS 3\u00d750+3\u00d725\/3 6\/10 kV NEXANS &lt;VDE&gt;<\/td><td class=\"spec-value\">6\/10 kV<\/td><\/tr>\n<tr><td>RHEYFIRM\u00ae (SI)<\/td><td class=\"spec-value\">RHEYFIRM (N)\/NTMCGCWOEUS 1\u00d795\/16 18\/30 kV NEXANS VDE<\/td><td class=\"spec-value\">18\/30 kV<\/td><\/tr>\n<\/tbody>\n<\/table>\n<p class=\"note\">\u88685\uff1a\u7535\u7f06\u6807\u8bb0\u793a\u4f8b<\/p>\n\n<h3>6.2 Secondary Verification \/ \u4e8c\u6b21\u9a8c\u8bc1<\/h3>\n<p>When sheath color alone is insufficient for positive identification, such as in faded or dirty cables, secondary verification must be performed through examination of embossed markings, review of installation documentation and cable schedules, measurement of overall cable diameter (MV cables are significantly larger), and inspection of cable construction (semiconductive layers indicate MV rating). Never energize or work on cables without positive voltage identification through multiple methods.<\/p>\n<\/section>\n\n<section>\n<h2>7. Anhui Feichun Manufacturing Capabilities \/ \u5b89\u5fbd\u98de\u7eaf\u5236\u9020\u80fd\u529b<\/h2>\n<p>Anhui Feichun Special Cable Co., Ltd. manufactures flexible reeling cables equivalent to the Nexans RHEYCORD\u00ae and RHEYFIRM\u00ae series, adhering to DIN VDE 0250 standards and offering customizable sheath color options to meet specific project requirements.<\/p>\n\n<table>\n<caption style=\"text-align:left;margin-bottom:.75rem;font-weight:600;\">Table 6: Feichun Equivalent Cable Range<\/caption>\n<thead>\n<tr><th>Nexans Equivalent<\/th><th>Feichun Type<\/th><th>Voltage Range<\/th><th>Standard Sheath Color<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>RHEYCORD\u00ae NSHTOEU-J<\/td><td>(N)SHT\u00d6U-J<\/td><td class=\"spec-value\">0.6\/1 kV<\/td><td>Black (custom available)<\/td><\/tr>\n<tr><td>RHEYCORD\u00ae (RTS)<\/td><td>(N)SHT\u00d6EU-J RTS<\/td><td class=\"spec-value\">0.6\/1 kV<\/td><td>Yellow (custom available)<\/td><\/tr>\n<tr><td>RHEYFIRM\u00ae (RTS)<\/td><td>(N)TSCGEWTOEUS<\/td><td class=\"spec-value\">6\/10\u201318\/30 kV<\/td><td>Red (standard)<\/td><\/tr>\n<tr><td>RHEYFIRM\u00ae (SI)<\/td><td>(N)TMCGCWOEUS<\/td><td class=\"spec-value\">6\/10\u201318\/30 kV<\/td><td>Red (standard)<\/td><\/tr>\n<\/tbody>\n<\/table>\n<p class=\"note\">\u88686\uff1a\u98de\u7eaf\u7b49\u6548\u7535\u7f06\u4ea7\u54c1\u7cfb\u5217<\/p>\n<\/section>\n\n<section>\n<h2>8. Conclusion \/ \u7ed3\u8bba<\/h2>\n<p>In the standard Nexans catalog, yellow outer sheaths are indeed associated with 1kV-class cables\u2014specifically the RHEYCORD\u00ae (RTS) extra heavy duty series rated at 0.6\/1 kV. Red sheaths identify the RHEYFIRM\u00ae medium-voltage series (6\u201330 kV). This color differentiation represents a manufacturer safety convention rather than a regulatory mandate, as DIN VDE 0207 specifies compound properties but not colors.<\/p>\n<p>The practical significance of this color coding system is substantial: it enables rapid visual identification of voltage hazard levels in industrial environments where both low-voltage and medium-voltage reeling cables may be present. Workers can immediately distinguish between 1kV class (yellow\/black) and multi-kilovolt class (red) cables, supporting safer work practices and compliance with electrical safety procedures.<\/p>\n<p class=\"note\">\u5728\u8010\u514b\u68ee\u6807\u51c6\u76ee\u5f55\u4e2d\uff0c\u9ec4\u8272\u5916\u62a4\u5957\u786e\u5b9e\u4e0e1kV\u7ea7\u7535\u7f06\u76f8\u5173\u8054\u2014\u2014\u7279\u522b\u662f\u989d\u5b9a\u7535\u538b\u4e3a0.6\/1 kV\u7684RHEYCORD\u00ae (RTS)\u8d85\u91cd\u578b\u7cfb\u5217\u3002\u7ea2\u8272\u62a4\u5957\u6807\u8bc6RHEYFIRM\u00ae\u4e2d\u538b\u7cfb\u5217(6\u201330 kV)\u3002\u8fd9\u79cd\u989c\u8272\u533a\u5206\u4ee3\u8868\u5236\u9020\u5546\u7684\u5b89\u5168\u60ef\u4f8b\u800c\u975e\u6cd5\u89c4\u5f3a\u5236\u8981\u6c42\uff0c\u56e0\u4e3aDIN VDE 0207\u89c4\u5b9a\u4e86\u6750\u6599\u6027\u80fd\u4f46\u672a\u89c4\u5b9a\u989c\u8272\u3002\u8fd9\u79cd\u989c\u8272\u7f16\u7801\u7cfb\u7edf\u5728\u5de5\u4e1a\u73af\u5883\u4e2d\u5177\u6709\u91cd\u8981\u7684\u5b9e\u9645\u610f\u4e49\uff0c\u53ef\u5feb\u901f\u8bc6\u522b\u7535\u538b\u5371\u9669\u7b49\u7ea7\u3002<\/p>\n<\/section>\n\n<section class=\"contact-section\">\n<h3>Contact Anhui Feichun Special Cable \/ \u8054\u7cfb\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06<\/h3>\n<div class=\"contact-grid\">\n<div class=\"contact-item\"><strong>WhatsApp<\/strong><a href=\"https:\/\/wa.me\/8613855123218\" rel=\"nofollow noopener\" target=\"_blank\">+86 138 5512 3218<\/a><\/div>\n<div class=\"contact-item\"><strong>Technical Support<\/strong><a href=\"mailto:tech@feichuncables.com\" rel=\"nofollow\">tech@feichuncables.com<\/a><\/div>\n<div class=\"contact-item\"><strong>Sales (Mr. Yang)<\/strong><a href=\"mailto:zihao.yang@feichuncables.com\" rel=\"nofollow\">zihao.yang@feichuncables.com<\/a><\/div>\n<div class=\"contact-item\"><strong>Sales (Mr. Huang)<\/strong><a href=\"mailto:ziyu.huang@feichuncables.com\" rel=\"nofollow\">ziyu.huang@feichuncables.com<\/a><\/div>\n<\/div>\n<\/section>\n\n<section class=\"references\">\n<h2>References &#038; Technical Standards \/ \u53c2\u8003\u6587\u732e\u4e0e\u6280\u672f\u6807\u51c6<\/h2>\n<ol class=\"ref-list\">\n<li>Nexans Deutschland GmbH \u2013 RHEYFIRM\u00ae(RTS) R-(N)TSCGEWTOEUS Technical Data. <a href=\"https:\/\/www.nexans.de\/eservice\/Germany-en\/navigate_342578\/RHEYFIRM_RTS_R_N_TSCGEWTOEUS_8_7_15_kV.html\" rel=\"nofollow noopener\" target=\"_blank\">Nexans Germany<\/a><\/li>\n<li>CSE Industrial Electrical Distributors \u2013 RHEYCORD\u00ae (RTS) (N)SHTOEU-J Cable Specifications. <a href=\"https:\/\/www.cse-distributors.co.uk\/cable\/nexans-handling-cable\/rheycordrts-nshtoeu-j-cable.html\" rel=\"nofollow noopener\" target=\"_blank\">CSE Distributors<\/a><\/li>\n<li>CSE Industrial Electrical Distributors \u2013 RHEYFIRM\u00ae (SI) NTMCGCWOEUS Cable. <a href=\"https:\/\/www.cse-distributors.co.uk\/cable\/nexans-handling-cable\/rheyfirmsi-ntmcgcwoeus-cable.html\" rel=\"nofollow noopener\" target=\"_blank\">CSE Distributors<\/a><\/li>\n<li>DIN VDE 0250-813:1985 \u2013 Cables, wires and flexible cords for power installation; Trailing cable. <a href=\"https:\/\/www.vde-verlag.de\/standards\/0250029\/din-vde-0250-813-vde-0250-813-1985-05.html\" rel=\"nofollow noopener\" target=\"_blank\">VDE Verlag<\/a><\/li>\n<li>DIN VDE 0207-21 \u2013 Insulating and sheathing compounds for cables and flexible cords. <a href=\"https:\/\/www.dinmedia.de\/\" rel=\"nofollow noopener\" target=\"_blank\">DIN Media<\/a><\/li>\n<li>Tratos Group \u2013 DIN VDE 250 Part 813 Standard Overview. <a href=\"https:\/\/tratosgroup.com\/products\/standards\/others\/din-vde-250-part-813\/\" rel=\"nofollow noopener\" target=\"_blank\">Tratos<\/a><\/li>\n<li>Tratos Group \u2013 TRATOSFLEX MTO\u00ae-OCS Single-Core Technical Data. <a href=\"https:\/\/tratosgroup.com\/product\/tratosflex-mto-ocs-vde\/\" rel=\"nofollow noopener\" target=\"_blank\">Tratos<\/a><\/li>\n<li>Incore Cables \u2013 (N)TSCGEWOEU Medium Voltage Reeling Cable Datasheet. <a href=\"https:\/\/www.incore-cables.com\/wp-content\/uploads\/2018\/12\/Datasheet-NTSCGEWOEU.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Incore Cables<\/a><\/li>\n<li>Prysmian Group \u2013 PROTOLON Round Medium Voltage Reeling Cables. <a href=\"https:\/\/www.prysmian.com\/\" rel=\"nofollow noopener\" target=\"_blank\">Prysmian<\/a><\/li>\n<li>IEC 60446 \/ IEC 60445 \u2013 Basic and safety principles for man-machine interface, marking and identification. <a href=\"https:\/\/www.iec.ch\/\" rel=\"nofollow noopener\" target=\"_blank\">IEC<\/a><\/li>\n<\/ol>\n<\/section>\n\n<footer>\n<p>\u00a9 2025 Anhui Feichun Special Cable Co., Ltd. \u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8 | Technical content for professional reference only.<\/p>\n<\/footer>\n<\/article>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"In the Nexans handling cable catalog, yellow outer sheaths are predominantly used for low-voltage (0.6\/1 kV) RHEYCORD\u00ae series cables, while red outer sheaths identify medium-voltage (3\u201330 kV) RHEYFIRM\u00ae series cables. This color differentiation serves as a critical visual safety indicator for voltage level identification in industrial environments.\n\u5728\u8010\u514b\u68ee\u642c\u8fd0\u7535\u7f06\u76ee\u5f55\u4e2d\uff0c\u9ec4\u8272\u5916\u62a4\u5957\u4e3b\u8981\u7528\u4e8e\u4f4e\u538b(0.6\/1 kV) RHEYCORD\u00ae\u7cfb\u5217\u7535\u7f06\uff0c\u800c\u7ea2\u8272\u5916\u62a4\u5957\u7528\u4e8e\u6807\u8bc6\u4e2d\u538b(3\u201330 kV) RHEYFIRM\u00ae\u7cfb\u5217\u7535\u7f06\u3002\u8fd9\u79cd\u989c\u8272\u533a\u5206\u662f\u5de5\u4e1a\u73af\u5883\u4e2d\u7535\u538b\u7b49\u7ea7\u8bc6\u522b\u7684\u91cd\u8981\u89c6\u89c9\u5b89\u5168\u6307\u6807\u3002","protected":false},"author":1,"featured_media":6591,"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":[46,66,56],"tags":[2786,26550,11965,535,6225,5346,5581,12148,3229,41872,2998,6200,955,954,548,780,41865,13180,145,41868,1685,41320,41866,41874,8989,41876,1092,41877,166,204,1696,41875,41878,35312,35410,41869,41864,41845,41844,34001,16198,2912,999,41871,26544,26600,26393,2401,995,2604,41867,2790,766,41873,41870],"class_list":["post-6590","post","type-post","status-publish","format-standard","has-post-thumbnail","category-cable-for-shore-connection-systems","category-common-problems-encountered-in-cable-applications","category-reeling-cable","tag-0-6-1kv-flexible-cable","tag-1kv-reeling-cable","tag-3gi3-insulation-compound","tag-5gm3-rubber","tag-5gm5-compound","tag-5gm5-rubber-compound","tag-6-10kv-cable","tag-6-10kv-reeling-cable","tag-anhui-feichun-cable","tag-cable-sheath-color-identification","tag-class-5-flexible-conductor","tag-crane-reeling-cable","tag-din-vde-0207-20","tag-din-vde-0207-21","tag-din-vde-0250-813","tag-din-vde-0250-814","tag-drum-spreader-cable","tag-epr-insulated-reeling-cable","tag-epr-insulation","tag-extra-heavy-duty-reeling-cable","tag-festoon-system-cable","tag-flame-retardant-reeling-cable","tag-hoisting-system-cable","tag-industrial-cable-safety-color","tag-low-voltage-reeling-cable","tag-lv-cable-yellow-jacket","tag-material-handling-cable","tag-material-handling-cable-color-code","tag-medium-voltage-reeling-cable","tag-mining-trailing-cable","tag-mobile-equipment-cable","tag-mv-cable-red-sheath","tag-nexans-equivalent-cable-manufacturer","tag-nexans-handling-cable","tag-nexans-reeling-cable","tag-nexans-reeling-cable-color-code","tag-nshtoeu-j","tag-ntmcgcwoeus","tag-ntscgewtoeus","tag-oil-resistant-cable-sheath","tag-pcp-sheath","tag-polychloroprene-cable","tag-polychloroprene-sheath-cable","tag-red-sheath-medium-voltage-cable","tag-rheycord-cable","tag-rheycord-rts","tag-rheyfirm-cable","tag-ship-to-shore-crane-cable-2","tag-stacker-reclaimer-cable","tag-sts-crane-cable","tag-tensile-stress-cable","tag-tinned-copper-conductor","tag-torsion-resistant-cable","tag-voltage-level-cable-color","tag-yellow-jacket-cable-1kv","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/6590","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=6590"}],"version-history":[{"count":1,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/6590\/revisions"}],"predecessor-version":[{"id":6592,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/6590\/revisions\/6592"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/6591"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=6590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=6590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=6590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}