Type 240 Mining Cable | AS\/NZS 1972 | IECEx Certified | High-Tension Mining Power | Anhui Feichun<\/title>\n <style>\n:root {\n --primary-dark: #0a1520;\n --primary-color: #1a2a4a;\n --primary-light: #2d4a6f;\n --accent-market: #ff6b35;\n --accent-analysis: #1e88e5;\n --accent-value: #00d084;\n --accent-risk: #ffd700;\n --accent-decision: #4ecdc4;\n --accent-alert: #ff1744;\n --neutral-light: #1a2a3f;\n --neutral-medium: #4a5f7f;\n --neutral-dark: #0d1520;\n --text-primary: #e8eef5;\n --text-secondary: #b8c5d6;\n --border-color: #3a4f6f;\n}\n\n* {\n margin: 0;\n padding: 0;\n box-sizing: border-box;\n}\n\nhtml, body {\n max-width: 100%;\n overflow-x: hidden;\n font-family: 'Source Sans Pro', 'Segoe UI', sans-serif;\n color: var(--text-primary);\n background: #0d1520;\n line-height: 1.6;\n}\n\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Playfair+Display:wght@700&family=Source+Sans+Pro:wght@400;500;600;700&display=swap');\n\n.container {\n max-width: 1020px;\n width: 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margin-bottom: 0;\n}\n\n.doc-id {\n text-align: center;\n font-size: 11px;\n color: var(--neutral-medium);\n margin-top: 36px;\n padding-top: 28px;\n border-top: 1px solid var(--border-color);\n}\n\n.layer-card {\n background: var(--neutral-light);\n border: 1px solid var(--border-color);\n padding: 22px;\n border-radius: 6px;\n margin: 18px 0;\n border-left: 5px solid var(--accent-market);\n}\n\n.layer-card.layer-1 {\n border-left-color: #ff6b35;\n}\n\n.layer-card.layer-2 {\n border-left-color: #1e88e5;\n}\n\n.layer-card.layer-3 {\n border-left-color: #00d084;\n}\n\n.layer-card.layer-4 {\n border-left-color: #ffd700;\n}\n\n.layer-card.layer-5 {\n border-left-color: #4ecdc4;\n}\n\n.layer-card.layer-6 {\n border-left-color: #ff1744;\n}\n\n.layer-name {\n font-size: 16px;\n font-weight: 700;\n color: var(--text-primary);\n margin-bottom: 10px;\n}\n\n.layer-detail {\n font-size: 12px;\n color: var(--text-secondary);\n margin-bottom: 6px;\n}\n\n@media (max-width: 640px) {\n .doc-header h1 {\n font-size: 30px;\n }\n \n .doc-content h2 {\n font-size: 28px;\n }\n \n .doc-content h3 {\n font-size: 22px;\n }\n \n .spec-card-value {\n font-size: 30px;\n }\n \n table, .comparison-table {\n font-size: 10px;\n }\n}\n <\/style>\n<\/head>\n<body>\n\n\n<div class=\"doc-header\">\n <div class=\"container\">\n \n <div class=\"badge-group\">\n <span class=\"doc-header-badge market\">\u26a1 High-Tension Power Cable<\/span>\n <span class=\"doc-header-badge analysis\">\ud83c\udfd7\ufe0f OEM-Integrated Design<\/span>\n <span class=\"doc-header-badge value\">\ud83d\udcaa Single-Layer Armoured<\/span>\n <span class=\"doc-header-badge risk\">\ud83c\udf0d AS\/NZS 1972 | IECEx Certified<\/span>\n <\/div>\n <h1>Type 240 Mining Cable: High-Tension OEM Power Distribution with AS\/NZS 1972 Single-Armour Architecture and IECEx Certification<\/h1>\n <p>A comprehensive technical reference for mining equipment manufacturers, EPC contractors, mine electrical engineers, and OEM procurement specialists designing primary power distribution systems for large-capacity mining equipment. This document explains the structural and electrical engineering that distinguishes Type 240 single-armoured power cable from Type 241 flexible trailing cable, details the Feichun temperature-optimized conductor and insulation architecture for sustained high-power duty, and demonstrates how OEM-integrated cable design delivers performance in direct-burial underground feeders, equipment-mounted reel systems, and shovel-to-substation power transmission in the harshest mining electrical environments.<\/p>\n <div class=\"doc-meta\">\n <span>\u26a1 3-core to 4-core configurations, 1.8\/3 kV to 6\/10 kV rated<\/span>\n <span>\ud83d\udd0c Temperature-optimized copper, Class 5 fine-strand<\/span>\n <span>\ud83d\udee1\ufe0f Single-layer steel wire armour, tensile-optimized<\/span>\n <span>\ud83d\udd25 IEC 60332-1 Category A flame-limited, HFLS sheath<\/span>\n <span>\ud83c\udf21\ufe0f +90 \u00b0C to +110 \u00b0C continuous rating options<\/span>\n <span>\u2705 IECEx II 2G & II 3G ATEX Certified, OEM-qualified<\/span>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"container\" style=\"margin-top: 55px;\">\n <div class=\"spec-grid\">\n <div class=\"spec-card market\">\n <div class=\"spec-card-label\">Armour Type<\/div>\n <div class=\"spec-card-value\">Single-Layer<\/div>\n <div class=\"spec-card-unit\">Steel wire, tensile-optimized geometry<\/div>\n <\/div>\n <div class=\"spec-card analysis\">\n <div class=\"spec-card-label\">Voltage Class<\/div>\n <div class=\"spec-card-value\">1.8\/3\u20136\/10 kV<\/div>\n <div class=\"spec-card-unit\">High-tension primary distribution<\/div>\n <\/div>\n <div class=\"spec-card value\">\n <div class=\"spec-card-label\">Tensile Breaking Load<\/div>\n <div class=\"spec-card-value\">\u2265 200<\/div>\n <div class=\"spec-card-unit\">MPa combined conductor + armour<\/div>\n <\/div>\n <div class=\"spec-card risk\">\n <div class=\"spec-card-label\">Continuous Temperature<\/div>\n <div class=\"spec-card-value\">+110 \u00b0C<\/div>\n <div class=\"spec-card-unit\">Sustained high-power equipment duty<\/div>\n <\/div>\n <div class=\"spec-card market\">\n <div class=\"spec-card-label\">Bending Radius<\/div>\n <div class=\"spec-card-value\">8\u201310 \u00d7 OD<\/div>\n <div class=\"spec-card-unit\">OEM reel and conduit compatibility<\/div>\n <\/div>\n <div class=\"spec-card analysis\">\n <div class=\"spec-card-label\">Certification<\/div>\n <div class=\"spec-card-value\">IECEx<\/div>\n <div class=\"spec-card-unit\">ATEX II 2G & II 3G, mine-approved<\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"container\">\n <div class=\"doc-content\">\n\n <div class=\"section-divider\">\n <span class=\"section-divider-badge market\">I<\/span>\n <hr>\n <span style=\"font-size:14px; color:var(--text-secondary);\">Type 240 vs. Type 241: Engineering Differentiation<\/span>\n <\/div>\n\n <h2>1. The Type 240 Classification: Single-Armour Power Cable for OEM Integration<\/h2>\n <p>\n Within the AS\/NZS 1972 (Flexible Electric Cables and Cords) specification framework, there are two primary armoured cable classifications designed for mining equipment: <strong>Type 240 (single-layer armour)<\/strong> and <strong>Type 241 (double-layer armour)<\/strong>. The nomenclature is precise, and the distinction is functional, not merely a specification choice. Each type is engineered for a fundamentally different application role in mining electrical systems:\n <\/p>\n <ul>\n <li><strong>Type 241:<\/strong> Double-layer armoured, designed for <strong>trailing cables on mobile mining equipment<\/strong> (rope shovels, LHD vehicles, continuous miners). The cable must flex repeatedly, survive mechanical abuse, and maintain flexibility under arctic cold-start and tropical heat. The double-armour architecture with elastomer interlayer is optimized for mechanical durability and impact resistance over 5\u20138 years of intense field duty<\/li>\n <li><strong>Type 240:<\/strong> Single-layer armoured, designed for <strong>primary power distribution and OEM-integrated power systems<\/strong> (underground feeder cables, large electric shovel mains power, pit-to-substation trunk cables, shovel-to-power-distribution-center reels). The cable carries higher sustained current, operates at higher voltage classes (1.8\/3 kV to 6\/10 kV), and is installed in more static or semi-static configurations. Mechanical abuse is less frequent, but thermal stress and sustained electrical loading are primary drivers. The single-armour architecture is optimized for tensile strength, thermal performance, and current capacity \u2014 not repeated flexing<\/li>\n <\/ul>\n <p>\n The misconception that Type 240 is a “downgrade” from Type 241 is common but dangerously wrong. Type 240 is not a cheaper or less-capable version of Type 241; it is a <strong>structurally different cable optimized for different application boundaries<\/strong>. Specifying the wrong type for the application produces cables that fail for the exact reason the alternative type was engineered to prevent: installing Type 241 on a primary power feeder wastes money on armour and flexibility features that are not needed; installing Type 240 on a mobile shovel trailing cable results in rapid armour-wire penetration failure because single-armour construction has no protection against the repeated flexing and impact stress that Type 241’s double-armour architecture is designed to absorb.\n <\/p>\n\n <h3>1.1. The AS\/NZS 1972 Standard Framework<\/h3>\n <p>\n AS\/NZS 1972 defines Type 240 as <strong>“flexible multi-core cable, thermoplastic sheath, with single layer of steel wire armour”<\/strong>, intended for use on mobile and portable mining equipment where <strong>high mechanical strength is required but the primary duty is power transmission rather than repeated flexing<\/strong>. The standard sets specific requirements for:\n <\/p>\n <ul>\n <li><strong>Conductor class:<\/strong> Class 5 fine-strand (minimum) for any flexibility requirement; Class 2 or Class 3 acceptable for semi-stationary reel applications<\/li>\n <li><strong>Insulation wall thickness:<\/strong> Scaled to voltage class \u2014 2.5 mm for 0.6\/1 kV, 3.5 mm for 1.8\/3 kV, 4.5 mm for 3.6\/6 kV, 5.5 mm for 6\/10 kV. Thicker than flexible cable because the primary design goal is electrical performance under sustained high-current loading, not mechanical durability under repeated bending<\/li>\n <li><strong>Temperature rating:<\/strong> +90 \u00b0C minimum (same as Type 241), but Type 240 is commonly manufactured to +110 \u00b0C rating because the application envelope expects higher sustained temperatures under heavy electrical loading<\/li>\n <li><strong>Armour construction:<\/strong> <strong>Single-layer<\/strong> steel wire at minimum, with no elastomer interlayer (though Feichun supplies elastomer-interlayer variants for OEM customers who specify it). The single armour is heavier gauge (2.4\u20132.8 mm typical vs. 1.6\u20132.0 mm for Type 241) and wound at tighter lay angles (20\u201330\u00b0 vs. 30\u201340\u00b0 for flexible cable) to maximize tensile strength<\/li>\n <li><strong>Flame propagation:<\/strong> IEC 60332-1 Category A (self-extinguishing), identical to Type 241. No differences in fire safety performance \u2014 both types are IECEx-certified and mine-approved<\/li>\n <\/ul>\n <div class=\"reference-box\">\n <strong>International Standards Equivalence:<\/strong> Type 240 cable is the Australian\/New Zealand designation. Equivalent classifications include UK BS 6500 Type 42, German VDE 0293 Part 1 (single-armour classification), and IEC 61308-2 (Fixed installations in mines and quarries). For international mining OEM supply, specifying “Type 240 equivalent to VDE 0293, IEC 61308, and BS 6500 Type 42” ensures procurement compatibility across all major mining equipment jurisdictions.\n <\/div>\n\n <div class=\"section-divider\">\n <span class=\"section-divider-badge analysis\">II<\/span>\n <hr>\n <span style=\"font-size:14px; color:var(--text-secondary);\">Tensile Architecture & Single-Armour Geometry<\/span>\n <\/div>\n\n <h2>2. Type 240 Construction: Tensile Optimization and Single-Armour Design Philosophy<\/h2>\n <p>\n A Type 240 mining cable is engineered from the inside out for <strong>sustained high-current power transmission under conditions where mechanical abuse is controlled or predictable<\/strong>. The architectural differences from Type 241 are fundamental:\n <\/p>\n <table class=\"comparison-table\">\n <thead><tr><th>Design Element<\/th><th>Type 241 (Flexible Trailing)<\/th><th>Type 240 (High-Tension Power)<\/th><th>Engineering Rationale<\/th><\/tr><\/thead>\n <tbody>\n <tr><td><strong>Conductor Class<\/strong><\/td><td>Class 5 minimum (fine-strand)<\/td><td class=\"advantage\">Class 5 fine-strand (high-flex) OR Class 2\/3 (semi-stationary)<\/td><td class=\"advantage\">Flexibility not the primary design driver<\/td><\/tr>\n <tr><td><strong>Insulation Thickness<\/strong><\/td><td>1.5\u20131.8 mm (0.6\/1 kV)<\/td><td class=\"advantage\">2.5 mm (0.6\/1 kV), 4.5+ mm (3.6\/6 kV)<\/td><td class=\"advantage\">Thicker for thermal & voltage safety margin<\/td><\/tr>\n <tr><td><strong>Armour Layer Count<\/strong><\/td><td>Two layers (reverse-lay)<\/td><td class=\"advantage\">Single layer (tensile-optimized)<\/td><td class=\"advantage\">Reduces flex-induced armour fatigue<\/td><\/tr>\n <tr><td><strong>Armour Wire Diameter<\/strong><\/td><td>1.6\u20132.0 mm steel<\/td><td class=\"advantage\">2.4\u20132.8 mm steel (heavier gauge)<\/td><td class=\"advantage\">Higher breaking load per wire<\/td><\/tr>\n <tr><td><strong>Armour Wire Lay Angle<\/strong><\/td><td>30\u201340\u00b0 from cable axis<\/td><td class=\"advantage\">20\u201330\u00b0 (tighter angle)<\/td><td class=\"advantage\">Greater tensile stiffness<\/td><\/tr>\n <tr><td><strong>Armour Interlayer<\/strong><\/td><td class=\"advantage\">Elastomer damping compound (mandatory)<\/td><td>Optional or direct contact<\/td><td>Not essential for semi-stationary cables<\/td><\/tr>\n <tr><td><strong>Outer Sheath Thickness<\/strong><\/td><td>3.5\u20134.5 mm (low-friction, calibrated)<\/td><td class=\"advantage\">4.0\u20135.0 mm (thicker, more protective)<\/td><td class=\"advantage\">Extra protection for installed cables<\/td><\/tr>\n <tr><td><strong>Temperature Rating<\/strong><\/td><td>+90 \u00b0C standard<\/td><td class=\"advantage\">+90 \u00b0C to +110 \u00b0C options<\/td><td class=\"advantage\">Higher-duty electrical loading<\/td><\/tr>\n <tr><td><strong>Minimum Bend Radius<\/strong><\/td><td>4\u20135 \u00d7 OD (high flexibility)<\/td><td class=\"advantage\">8\u201310 \u00d7 OD (lower flex requirement)<\/td><td class=\"advantage\">Reflects application design envelope<\/td><\/tr>\n <\/tbody>\n <\/table>\n\n <h3>2.1. The Single-Armour Advantage in Sustained High-Current Applications<\/h3>\n <p>\n Why does Type 240 use single-armour construction when Type 241’s double-armour provides superior mechanical protection? The answer lies in <strong>armour fatigue under repeated stress cycling<\/strong>. A single-armour cable, helically wound, experiences one primary stress mode: tensile load along the cable axis. The armour wires experience tension, compression (laterally), and bending, but there is no <strong>anti-phase alternating stress<\/strong> that occurs in double-armoured construction.\n <\/p>\n <p>\n In a double-armoured cable, the two armour layers are wound in opposite directions (one right-hand, one left-hand helix). Under tensile load, one layer tightens and the other loosens \u2014 they experience alternating stress with each flex cycle. Over 5 \u00d7 10\u2076 flex cycles (the Type 241 endurance target), this alternating stress causes wire hardening, brittleness, and eventual cracking. A single-armoured cable, in contrast, experiences primarily <strong>unidirectional stress<\/strong> \u2014 the wires tighten under load, then relax when load is removed, but they do not experience the reversing bending stress that comes from opposing helices trying to move in opposite directions.\n <\/p>\n <p>\n For an application where the cable is installed once, carries sustained current for 5\u20138 years, and experiences only minimal flexing (underground buried feeders, shovel mains-power hard-wired connections), single-armour construction is <strong>more durable than double-armour<\/strong>, because it avoids the fatigue mechanism entirely. This is counterintuitive \u2014 the cable that looks “lighter” (single armour) is actually more robust for power-transmission duty.\n <\/p>\n <div class=\"tech-highlight\">\n <h4>The Engineering Insight: Choosing Between Type 240 and Type 241<\/h4>\n <p>\n The decision between Type 240 and Type 241 should be driven by the <strong>primary failure mode that the cable is engineered to prevent<\/strong>. Type 241 prevents <strong>armour-wire penetration and mechanical-abuse failure<\/strong> by using double-armour with elastomer interlayer \u2014 it prioritizes mechanical durability over electrical margin. Type 240 prevents <strong>insulation breakdown under sustained high current<\/strong> by using thicker insulation and higher temperature ratings \u2014 it prioritizes electrical performance over mechanical impact resistance. A mining equipment OEM should specify Type 240 for primary power feeders, underground distribution, and reel-mounted power cables where the cable is mechanically protected or semi-stationary; specify Type 241 for trailing cables on mobile equipment. Specifying Type 240 on a mobile shovel trailing cable or Type 241 on a pit-to-substation buried feeder is technically possible but represents engineering mismatch \u2014 each cable is optimized for a failure mode that does not exist in the actual application.\n <\/p>\n <\/div>\n\n \n \n\n <\/div>\n<\/div>\n\n\n<div class=\"doc-footer\">\n <div class=\"container\">\n <h4>Anhui Feichun Special Cable Co., Ltd. \u2014 Type 240 High-Tension Mining Power Cable OEM Supply<\/h4>\n <p>\n Anhui Feichun Special Cable Co., Ltd. (\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8) is a specialty cable manufacturer with dedicated production capability for Type 240 high-tension mining power cables certified to AS\/NZS 1972, IEC 61308, and international IECEx mining-equipment standards. The company operates manufacturing facilities qualified to ISO 9001, ISO 14001, and ISO 45001, with production equipment for multi-core conductor bunching, temperature-optimized EPR and XLPE insulation extrusion, single-layer steel wire armour application, and flame-resistant polyurethane outer sheath extrusion.\n <\/p>\n <p>\n Feichun’s Type 240 production spans voltage classes from 1.8\/3 kV (medium-power equipment duty) through 6\/10 kV (large electric shovels and pit-to-substation trunk feeders), with both +90 \u00b0C and +110 \u00b0C temperature rating options. All cables are manufactured with closed-loop quality control including in-process testing for conductor continuity, insulation integrity, armour adhesion, and sheath surface quality. Type test certificates per IEC 60332-1 (flame propagation), IEC 61006-1 (thermal aging), AS\/NZS 1972 mechanical requirements, and optional IECEx witness testing are provided with each cable shipment.\n <\/p>\n <p>\n The engineering team provides OEM integration support including thermal-margin calculations, custom configuration engineering for non-standard requirements, and coordination of third-party witness testing through DEKRA, T\u00dcV, SGS, BV, or Lloyd’s for projects requiring additional certification verification.\n <\/p>\n <div class=\"contact-block\">\n <p><strong>Direct OEM and Engineering Contact<\/strong><\/p>\n <p><strong>Email:<\/strong> Tech@feichuncables.com<\/p>\n <p><strong>Telephone:<\/strong> +86 138 5512 3218<\/p>\n <\/div>\n <p>\n Manufacturer-direct procurement is supported for mining equipment OEMs, EPC contractors, and mining operations electrical engineering teams. Engineering quotations against project Type 240 cable schedules \u2014 including equipment power profile, voltage class, installation architecture, thermal environment, and regulatory jurisdiction \u2014 are returned within 5\u201310 business days for standard 1.8\/3 kV and 3.6\/6 kV configurations. Extended lead times apply for custom voltage classes, non-standard core counts, or integrated fiber-optic data conductors. Complete technical documentation, compliance certificates, and installation guidance are provided with each shipment. Sample lengths for pre-deployment qualification testing are available on request, and engineering support for OEM thermal-margin verification and cable-sizing calculations is provided as standard.\n <\/p>\n <div class=\"doc-id\">\n Document Reference: FEICHUN-Type240-Mining-HV-Cable-AS-NZS-1972-IECEx-OEM-EN-V1 \u00b7 Engineering Reference for High-Tension Single-Armoured Power Distribution Cable \u00b7 Tensile-Optimized Construction for OEM Integration \u00b7 IECEx Certification \u00b7 Specifications subject to engineering review against equipment power envelope, installation architecture, thermal regime, and regulatory operating jurisdiction\n <\/div>\n <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"A comprehensive technical reference for mining equipment manufacturers, EPC contractors, mine electrical engineers, and OEM procurement specialists designing primary power distribution systems for large-capacity mining equipment. This document explains the structural and electrical engineering that distinguishes Type 240 single-armoured power cable from Type 241 flexible trailing cable, details the Feichun temperature-optimized conductor and insulation architecture for sustained high-power duty, and demonstrates how OEM-integrated cable design delivers performance in direct-burial underground feeders, equipment-mounted reel systems, and shovel-to-substation power transmission in the harshest mining electrical environments.","protected":false},"author":1,"featured_media":11980,"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],"tags":[],"class_list":["post-16992","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/16992","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=16992"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/16992\/revisions"}],"predecessor-version":[{"id":16995,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/16992\/revisions\/16995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/11980"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=16992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=16992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=16992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":16992,"date":"2026-06-08T09:31:41","date_gmt":"2026-06-08T01:31:41","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=16992"},"modified":"2026-06-08T09:35:30","modified_gmt":"2026-06-08T01:35:30","slug":"type-240-mining-cable-high-tension-oem-power-distribution-with-as-nzs-1972-single-armour-architecture-and-iecex-certification","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/type-240-mining-cable-high-tension-oem-power-distribution-with-as-nzs-1972-single-armour-architecture-and-iecex-certification\/","title":{"rendered":"Type 240 Mining Cable: High-Tension OEM Power Distribution with AS\/NZS 1972 Single-Armour Architecture and IECEx Certification"},"content":{"rendered":"\n\n\n\n \n \n \n \n \n \n Type 240 Mining Cable | AS\/NZS 1972 | IECEx Certified | High-Tension Mining Power | Anhui Feichun<\/title>\n <style>\n:root {\n --primary-dark: #0a1520;\n --primary-color: #1a2a4a;\n --primary-light: #2d4a6f;\n --accent-market: #ff6b35;\n 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var(--border-color);\n}\n\n.layer-card {\n background: var(--neutral-light);\n border: 1px solid var(--border-color);\n padding: 22px;\n border-radius: 6px;\n margin: 18px 0;\n border-left: 5px solid var(--accent-market);\n}\n\n.layer-card.layer-1 {\n border-left-color: #ff6b35;\n}\n\n.layer-card.layer-2 {\n border-left-color: #1e88e5;\n}\n\n.layer-card.layer-3 {\n border-left-color: #00d084;\n}\n\n.layer-card.layer-4 {\n border-left-color: #ffd700;\n}\n\n.layer-card.layer-5 {\n border-left-color: #4ecdc4;\n}\n\n.layer-card.layer-6 {\n border-left-color: #ff1744;\n}\n\n.layer-name {\n font-size: 16px;\n font-weight: 700;\n color: var(--text-primary);\n margin-bottom: 10px;\n}\n\n.layer-detail {\n font-size: 12px;\n color: var(--text-secondary);\n margin-bottom: 6px;\n}\n\n@media (max-width: 640px) {\n .doc-header h1 {\n font-size: 30px;\n }\n \n .doc-content h2 {\n font-size: 28px;\n }\n \n .doc-content h3 {\n font-size: 22px;\n }\n \n .spec-card-value {\n font-size: 30px;\n }\n \n table, .comparison-table {\n font-size: 10px;\n }\n}\n <\/style>\n<\/head>\n<body>\n\n\n<div class=\"doc-header\">\n <div class=\"container\">\n \n <div class=\"badge-group\">\n <span class=\"doc-header-badge market\">\u26a1 High-Tension Power Cable<\/span>\n <span class=\"doc-header-badge analysis\">\ud83c\udfd7\ufe0f OEM-Integrated Design<\/span>\n <span class=\"doc-header-badge value\">\ud83d\udcaa Single-Layer Armoured<\/span>\n <span class=\"doc-header-badge risk\">\ud83c\udf0d AS\/NZS 1972 | IECEx Certified<\/span>\n <\/div>\n <h1>Type 240 Mining Cable: High-Tension OEM Power Distribution with AS\/NZS 1972 Single-Armour Architecture and IECEx Certification<\/h1>\n <p>A comprehensive technical reference for mining equipment manufacturers, EPC contractors, mine electrical engineers, and OEM procurement specialists designing primary power distribution systems for large-capacity mining equipment. This document explains the structural and electrical engineering that distinguishes Type 240 single-armoured power cable from Type 241 flexible trailing cable, details the Feichun temperature-optimized conductor and insulation architecture for sustained high-power duty, and demonstrates how OEM-integrated cable design delivers performance in direct-burial underground feeders, equipment-mounted reel systems, and shovel-to-substation power transmission in the harshest mining electrical environments.<\/p>\n <div class=\"doc-meta\">\n <span>\u26a1 3-core to 4-core configurations, 1.8\/3 kV to 6\/10 kV rated<\/span>\n <span>\ud83d\udd0c Temperature-optimized copper, Class 5 fine-strand<\/span>\n <span>\ud83d\udee1\ufe0f Single-layer steel wire armour, tensile-optimized<\/span>\n <span>\ud83d\udd25 IEC 60332-1 Category A flame-limited, HFLS sheath<\/span>\n <span>\ud83c\udf21\ufe0f +90 \u00b0C to +110 \u00b0C continuous rating options<\/span>\n <span>\u2705 IECEx II 2G & II 3G ATEX Certified, OEM-qualified<\/span>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"container\" style=\"margin-top: 55px;\">\n <div class=\"spec-grid\">\n <div class=\"spec-card market\">\n <div class=\"spec-card-label\">Armour Type<\/div>\n <div class=\"spec-card-value\">Single-Layer<\/div>\n <div class=\"spec-card-unit\">Steel wire, tensile-optimized geometry<\/div>\n <\/div>\n <div class=\"spec-card analysis\">\n <div class=\"spec-card-label\">Voltage Class<\/div>\n <div class=\"spec-card-value\">1.8\/3\u20136\/10 kV<\/div>\n <div class=\"spec-card-unit\">High-tension primary distribution<\/div>\n <\/div>\n <div class=\"spec-card value\">\n <div class=\"spec-card-label\">Tensile Breaking Load<\/div>\n <div class=\"spec-card-value\">\u2265 200<\/div>\n <div class=\"spec-card-unit\">MPa combined conductor + armour<\/div>\n <\/div>\n <div class=\"spec-card risk\">\n <div class=\"spec-card-label\">Continuous Temperature<\/div>\n <div class=\"spec-card-value\">+110 \u00b0C<\/div>\n <div class=\"spec-card-unit\">Sustained high-power equipment duty<\/div>\n <\/div>\n <div class=\"spec-card market\">\n <div class=\"spec-card-label\">Bending Radius<\/div>\n <div class=\"spec-card-value\">8\u201310 \u00d7 OD<\/div>\n <div class=\"spec-card-unit\">OEM reel and conduit compatibility<\/div>\n <\/div>\n <div class=\"spec-card analysis\">\n <div class=\"spec-card-label\">Certification<\/div>\n <div class=\"spec-card-value\">IECEx<\/div>\n <div class=\"spec-card-unit\">ATEX II 2G & II 3G, mine-approved<\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"container\">\n <div class=\"doc-content\">\n\n <div class=\"section-divider\">\n <span class=\"section-divider-badge market\">I<\/span>\n <hr>\n <span style=\"font-size:14px; color:var(--text-secondary);\">Type 240 vs. Type 241: Engineering Differentiation<\/span>\n <\/div>\n\n <h2>1. The Type 240 Classification: Single-Armour Power Cable for OEM Integration<\/h2>\n <p>\n Within the AS\/NZS 1972 (Flexible Electric Cables and Cords) specification framework, there are two primary armoured cable classifications designed for mining equipment: <strong>Type 240 (single-layer armour)<\/strong> and <strong>Type 241 (double-layer armour)<\/strong>. The nomenclature is precise, and the distinction is functional, not merely a specification choice. Each type is engineered for a fundamentally different application role in mining electrical systems:\n <\/p>\n <ul>\n <li><strong>Type 241:<\/strong> Double-layer armoured, designed for <strong>trailing cables on mobile mining equipment<\/strong> (rope shovels, LHD vehicles, continuous miners). The cable must flex repeatedly, survive mechanical abuse, and maintain flexibility under arctic cold-start and tropical heat. The double-armour architecture with elastomer interlayer is optimized for mechanical durability and impact resistance over 5\u20138 years of intense field duty<\/li>\n <li><strong>Type 240:<\/strong> Single-layer armoured, designed for <strong>primary power distribution and OEM-integrated power systems<\/strong> (underground feeder cables, large electric shovel mains power, pit-to-substation trunk cables, shovel-to-power-distribution-center reels). The cable carries higher sustained current, operates at higher voltage classes (1.8\/3 kV to 6\/10 kV), and is installed in more static or semi-static configurations. Mechanical abuse is less frequent, but thermal stress and sustained electrical loading are primary drivers. The single-armour architecture is optimized for tensile strength, thermal performance, and current capacity \u2014 not repeated flexing<\/li>\n <\/ul>\n <p>\n The misconception that Type 240 is a “downgrade” from Type 241 is common but dangerously wrong. Type 240 is not a cheaper or less-capable version of Type 241; it is a <strong>structurally different cable optimized for different application boundaries<\/strong>. Specifying the wrong type for the application produces cables that fail for the exact reason the alternative type was engineered to prevent: installing Type 241 on a primary power feeder wastes money on armour and flexibility features that are not needed; installing Type 240 on a mobile shovel trailing cable results in rapid armour-wire penetration failure because single-armour construction has no protection against the repeated flexing and impact stress that Type 241’s double-armour architecture is designed to absorb.\n <\/p>\n\n <h3>1.1. The AS\/NZS 1972 Standard Framework<\/h3>\n <p>\n AS\/NZS 1972 defines Type 240 as <strong>“flexible multi-core cable, thermoplastic sheath, with single layer of steel wire armour”<\/strong>, intended for use on mobile and portable mining equipment where <strong>high mechanical strength is required but the primary duty is power transmission rather than repeated flexing<\/strong>. The standard sets specific requirements for:\n <\/p>\n <ul>\n <li><strong>Conductor class:<\/strong> Class 5 fine-strand (minimum) for any flexibility requirement; Class 2 or Class 3 acceptable for semi-stationary reel applications<\/li>\n <li><strong>Insulation wall thickness:<\/strong> Scaled to voltage class \u2014 2.5 mm for 0.6\/1 kV, 3.5 mm for 1.8\/3 kV, 4.5 mm for 3.6\/6 kV, 5.5 mm for 6\/10 kV. Thicker than flexible cable because the primary design goal is electrical performance under sustained high-current loading, not mechanical durability under repeated bending<\/li>\n <li><strong>Temperature rating:<\/strong> +90 \u00b0C minimum (same as Type 241), but Type 240 is commonly manufactured to +110 \u00b0C rating because the application envelope expects higher sustained temperatures under heavy electrical loading<\/li>\n <li><strong>Armour construction:<\/strong> <strong>Single-layer<\/strong> steel wire at minimum, with no elastomer interlayer (though Feichun supplies elastomer-interlayer variants for OEM customers who specify it). The single armour is heavier gauge (2.4\u20132.8 mm typical vs. 1.6\u20132.0 mm for Type 241) and wound at tighter lay angles (20\u201330\u00b0 vs. 30\u201340\u00b0 for flexible cable) to maximize tensile strength<\/li>\n <li><strong>Flame propagation:<\/strong> IEC 60332-1 Category A (self-extinguishing), identical to Type 241. No differences in fire safety performance \u2014 both types are IECEx-certified and mine-approved<\/li>\n <\/ul>\n <div class=\"reference-box\">\n <strong>International Standards Equivalence:<\/strong> Type 240 cable is the Australian\/New Zealand designation. Equivalent classifications include UK BS 6500 Type 42, German VDE 0293 Part 1 (single-armour classification), and IEC 61308-2 (Fixed installations in mines and quarries). For international mining OEM supply, specifying “Type 240 equivalent to VDE 0293, IEC 61308, and BS 6500 Type 42” ensures procurement compatibility across all major mining equipment jurisdictions.\n <\/div>\n\n <div class=\"section-divider\">\n <span class=\"section-divider-badge analysis\">II<\/span>\n <hr>\n <span style=\"font-size:14px; color:var(--text-secondary);\">Tensile Architecture & Single-Armour Geometry<\/span>\n <\/div>\n\n <h2>2. Type 240 Construction: Tensile Optimization and Single-Armour Design Philosophy<\/h2>\n <p>\n A Type 240 mining cable is engineered from the inside out for <strong>sustained high-current power transmission under conditions where mechanical abuse is controlled or predictable<\/strong>. The architectural differences from Type 241 are fundamental:\n <\/p>\n <table class=\"comparison-table\">\n <thead><tr><th>Design Element<\/th><th>Type 241 (Flexible Trailing)<\/th><th>Type 240 (High-Tension Power)<\/th><th>Engineering Rationale<\/th><\/tr><\/thead>\n <tbody>\n <tr><td><strong>Conductor Class<\/strong><\/td><td>Class 5 minimum (fine-strand)<\/td><td class=\"advantage\">Class 5 fine-strand (high-flex) OR Class 2\/3 (semi-stationary)<\/td><td class=\"advantage\">Flexibility not the primary design driver<\/td><\/tr>\n <tr><td><strong>Insulation Thickness<\/strong><\/td><td>1.5\u20131.8 mm (0.6\/1 kV)<\/td><td class=\"advantage\">2.5 mm (0.6\/1 kV), 4.5+ mm (3.6\/6 kV)<\/td><td class=\"advantage\">Thicker for thermal & voltage safety margin<\/td><\/tr>\n <tr><td><strong>Armour Layer Count<\/strong><\/td><td>Two layers (reverse-lay)<\/td><td class=\"advantage\">Single layer (tensile-optimized)<\/td><td class=\"advantage\">Reduces flex-induced armour fatigue<\/td><\/tr>\n <tr><td><strong>Armour Wire Diameter<\/strong><\/td><td>1.6\u20132.0 mm steel<\/td><td class=\"advantage\">2.4\u20132.8 mm steel (heavier gauge)<\/td><td class=\"advantage\">Higher breaking load per wire<\/td><\/tr>\n <tr><td><strong>Armour Wire Lay Angle<\/strong><\/td><td>30\u201340\u00b0 from cable axis<\/td><td class=\"advantage\">20\u201330\u00b0 (tighter angle)<\/td><td class=\"advantage\">Greater tensile stiffness<\/td><\/tr>\n <tr><td><strong>Armour Interlayer<\/strong><\/td><td class=\"advantage\">Elastomer damping compound (mandatory)<\/td><td>Optional or direct contact<\/td><td>Not essential for semi-stationary cables<\/td><\/tr>\n <tr><td><strong>Outer Sheath Thickness<\/strong><\/td><td>3.5\u20134.5 mm (low-friction, calibrated)<\/td><td class=\"advantage\">4.0\u20135.0 mm (thicker, more protective)<\/td><td class=\"advantage\">Extra protection for installed cables<\/td><\/tr>\n <tr><td><strong>Temperature Rating<\/strong><\/td><td>+90 \u00b0C standard<\/td><td class=\"advantage\">+90 \u00b0C to +110 \u00b0C options<\/td><td class=\"advantage\">Higher-duty electrical loading<\/td><\/tr>\n <tr><td><strong>Minimum Bend Radius<\/strong><\/td><td>4\u20135 \u00d7 OD (high flexibility)<\/td><td class=\"advantage\">8\u201310 \u00d7 OD (lower flex requirement)<\/td><td class=\"advantage\">Reflects application design envelope<\/td><\/tr>\n <\/tbody>\n <\/table>\n\n <h3>2.1. The Single-Armour Advantage in Sustained High-Current Applications<\/h3>\n <p>\n Why does Type 240 use single-armour construction when Type 241’s double-armour provides superior mechanical protection? The answer lies in <strong>armour fatigue under repeated stress cycling<\/strong>. A single-armour cable, helically wound, experiences one primary stress mode: tensile load along the cable axis. The armour wires experience tension, compression (laterally), and bending, but there is no <strong>anti-phase alternating stress<\/strong> that occurs in double-armoured construction.\n <\/p>\n <p>\n In a double-armoured cable, the two armour layers are wound in opposite directions (one right-hand, one left-hand helix). Under tensile load, one layer tightens and the other loosens \u2014 they experience alternating stress with each flex cycle. Over 5 \u00d7 10\u2076 flex cycles (the Type 241 endurance target), this alternating stress causes wire hardening, brittleness, and eventual cracking. A single-armoured cable, in contrast, experiences primarily <strong>unidirectional stress<\/strong> \u2014 the wires tighten under load, then relax when load is removed, but they do not experience the reversing bending stress that comes from opposing helices trying to move in opposite directions.\n <\/p>\n <p>\n For an application where the cable is installed once, carries sustained current for 5\u20138 years, and experiences only minimal flexing (underground buried feeders, shovel mains-power hard-wired connections), single-armour construction is <strong>more durable than double-armour<\/strong>, because it avoids the fatigue mechanism entirely. This is counterintuitive \u2014 the cable that looks “lighter” (single armour) is actually more robust for power-transmission duty.\n <\/p>\n <div class=\"tech-highlight\">\n <h4>The Engineering Insight: Choosing Between Type 240 and Type 241<\/h4>\n <p>\n The decision between Type 240 and Type 241 should be driven by the <strong>primary failure mode that the cable is engineered to prevent<\/strong>. Type 241 prevents <strong>armour-wire penetration and mechanical-abuse failure<\/strong> by using double-armour with elastomer interlayer \u2014 it prioritizes mechanical durability over electrical margin. Type 240 prevents <strong>insulation breakdown under sustained high current<\/strong> by using thicker insulation and higher temperature ratings \u2014 it prioritizes electrical performance over mechanical impact resistance. A mining equipment OEM should specify Type 240 for primary power feeders, underground distribution, and reel-mounted power cables where the cable is mechanically protected or semi-stationary; specify Type 241 for trailing cables on mobile equipment. Specifying Type 240 on a mobile shovel trailing cable or Type 241 on a pit-to-substation buried feeder is technically possible but represents engineering mismatch \u2014 each cable is optimized for a failure mode that does not exist in the actual application.\n <\/p>\n <\/div>\n\n \n \n\n <\/div>\n<\/div>\n\n\n<div class=\"doc-footer\">\n <div class=\"container\">\n <h4>Anhui Feichun Special Cable Co., Ltd. \u2014 Type 240 High-Tension Mining Power Cable OEM Supply<\/h4>\n <p>\n Anhui Feichun Special Cable Co., Ltd. (\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8) is a specialty cable manufacturer with dedicated production capability for Type 240 high-tension mining power cables certified to AS\/NZS 1972, IEC 61308, and international IECEx mining-equipment standards. The company operates manufacturing facilities qualified to ISO 9001, ISO 14001, and ISO 45001, with production equipment for multi-core conductor bunching, temperature-optimized EPR and XLPE insulation extrusion, single-layer steel wire armour application, and flame-resistant polyurethane outer sheath extrusion.\n <\/p>\n <p>\n Feichun’s Type 240 production spans voltage classes from 1.8\/3 kV (medium-power equipment duty) through 6\/10 kV (large electric shovels and pit-to-substation trunk feeders), with both +90 \u00b0C and +110 \u00b0C temperature rating options. All cables are manufactured with closed-loop quality control including in-process testing for conductor continuity, insulation integrity, armour adhesion, and sheath surface quality. Type test certificates per IEC 60332-1 (flame propagation), IEC 61006-1 (thermal aging), AS\/NZS 1972 mechanical requirements, and optional IECEx witness testing are provided with each cable shipment.\n <\/p>\n <p>\n The engineering team provides OEM integration support including thermal-margin calculations, custom configuration engineering for non-standard requirements, and coordination of third-party witness testing through DEKRA, T\u00dcV, SGS, BV, or Lloyd’s for projects requiring additional certification verification.\n <\/p>\n <div class=\"contact-block\">\n <p><strong>Direct OEM and Engineering Contact<\/strong><\/p>\n <p><strong>Email:<\/strong> Tech@feichuncables.com<\/p>\n <p><strong>Telephone:<\/strong> +86 138 5512 3218<\/p>\n <\/div>\n <p>\n Manufacturer-direct procurement is supported for mining equipment OEMs, EPC contractors, and mining operations electrical engineering teams. Engineering quotations against project Type 240 cable schedules \u2014 including equipment power profile, voltage class, installation architecture, thermal environment, and regulatory jurisdiction \u2014 are returned within 5\u201310 business days for standard 1.8\/3 kV and 3.6\/6 kV configurations. Extended lead times apply for custom voltage classes, non-standard core counts, or integrated fiber-optic data conductors. Complete technical documentation, compliance certificates, and installation guidance are provided with each shipment. Sample lengths for pre-deployment qualification testing are available on request, and engineering support for OEM thermal-margin verification and cable-sizing calculations is provided as standard.\n <\/p>\n <div class=\"doc-id\">\n Document Reference: FEICHUN-Type240-Mining-HV-Cable-AS-NZS-1972-IECEx-OEM-EN-V1 \u00b7 Engineering Reference for High-Tension Single-Armoured Power Distribution Cable \u00b7 Tensile-Optimized Construction for OEM Integration \u00b7 IECEx Certification \u00b7 Specifications subject to engineering review against equipment power envelope, installation architecture, thermal regime, and regulatory operating jurisdiction\n <\/div>\n <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"A comprehensive technical reference for mining equipment manufacturers, EPC contractors, mine electrical engineers, and OEM procurement specialists designing primary power distribution systems for large-capacity mining equipment. This document explains the structural and electrical engineering that distinguishes Type 240 single-armoured power cable from Type 241 flexible trailing cable, details the Feichun temperature-optimized conductor and insulation architecture for sustained high-power duty, and demonstrates how OEM-integrated cable design delivers performance in direct-burial underground feeders, equipment-mounted reel systems, and shovel-to-substation power transmission in the harshest mining electrical environments.","protected":false},"author":1,"featured_media":11980,"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],"tags":[],"class_list":["post-16992","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/16992","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=16992"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/16992\/revisions"}],"predecessor-version":[{"id":16995,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/16992\/revisions\/16995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/11980"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=16992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=16992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=16992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}