{"id":12097,"date":"2026-05-15T12:01:40","date_gmt":"2026-05-15T04:01:40","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=12097"},"modified":"2026-05-15T12:02:10","modified_gmt":"2026-05-15T04:02:10","slug":"lift-2s","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/lift-2s\/","title":{"rendered":"LIFT-2S"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"e8e8e9\" data-has-transparency=\"false\" style=\"--dominant-color: #e8e8e9;\" loading=\"lazy\" decoding=\"async\" width=\"1195\" height=\"628\" sizes=\"auto, (max-width: 1195px) 100vw, 1195px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-1195x628.avif\" alt=\"\" class=\"wp-image-12098 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-1195x628.avif 1195w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-300x158.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-768x404.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-400x210.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-800x420.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-832x437.avif 832w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462-1248x656.avif 1248w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1462.avif 1256w\" \/><\/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=\"LIFT-2S: Premium 300\/500V multi-core lifting cable with galvanized steel support cores. Specialized PVC insulation and sheath for vertical suspension applications. \u221240\u00b0C to +70\u00b0C operating range. Maximum suspension length 50 m. Class 6 fine stranding, 10\u00d7D bending radius, low abrasion, high notch resistance. 12 complete SKU configurations (6G1 to 30G1.5) for lifting platforms, elevators, vertical lifting systems.\">\n    <meta name=\"keywords\" content=\"LIFT-2S, lifting cable, 300\/500V, suspension cable, steel core cable, elevator cable\">\n    <meta property=\"og:title\" content=\"LIFT-2S 300\/500V Lifting Cable - FeiChun Technical Specification\">\n    <meta property=\"og:description\" content=\"Premium 300\/500V multi-core lifting cable with galvanized steel support cores. 50 m maximum suspension length, Class 6 conductor.\">\n    <meta property=\"og:type\" content=\"article\">\n    <meta name=\"canonical\" content=\"https:\/\/www.feichuncables.com\/products\/lift-2s\">\n    <title>LIFT-2S Lifting Cable | FeiChun Special Cables<\/title>\n    <style>\n        :root {\n            --primary-color: #1a3a52;\n            --primary-light: #2d5a7b;\n            --primary-dark: #0f1f2e;\n            --accent-lift: #0277bd;\n            --accent-steel: #616161;\n            --accent-mech: #00796b;\n            --accent-safety: #d32f2f;\n            --neutral-light: #f5f8fa;\n            --neutral-medium: #cfd8e3;\n            --neutral-dark: #546e7a;\n            --text-primary: #1a1a1a;\n            --text-secondary: #555555;\n            --border-color: #e0e6ed;\n        }\n        \n        * {\n            margin: 0;\n            padding: 0;\n            box-sizing: border-box;\n        }\n        \n        @import url('https:\/\/fonts.googleapis.com\/css2?family=Source+Serif+4:wght@400;600;700&family=Instrument+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');\n        \n        html, body {\n            font-family: 'Instrument Sans', sans-serif;\n            color: var(--text-primary);\n            background: #ffffff;\n            line-height: 1.6;\n        }\n        \n        .container {\n            max-width: 920px;\n            margin: 0 auto;\n            padding: 0 20px;\n        }\n        \n        .doc-header {\n            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);\n            color: white;\n            padding: 40px 20px;\n            position: relative;\n            overflow: hidden;\n        }\n        \n        .doc-header::before {\n            content: '';\n            position: absolute;\n            top: -50%;\n            right: -10%;\n            width: 500px;\n            height: 500px;\n            background: radial-gradient(circle, rgba(2, 119, 189, 0.15) 0%, transparent 70%);\n            border-radius: 50%;\n        }\n        \n        .doc-header-badge {\n            display: inline-block;\n            background: var(--accent-lift);\n            color: white;\n            padding: 8px 16px;\n            border-radius: 4px;\n            font-size: 12px;\n            font-weight: 700;\n            letter-spacing: 1px;\n            margin-bottom: 16px;\n            text-transform: uppercase;\n            box-shadow: 0 4px 12px rgba(2, 119, 189, 0.3);\n        }\n        \n        .doc-header h1 {\n            font-family: 'Source Serif 4', serif;\n            font-size: 48px;\n            font-weight: 700;\n            margin-bottom: 8px;\n            position: relative;\n            z-index: 1;\n            line-height: 1.2;\n        }\n        \n        .doc-header p {\n            font-size: 18px;\n            color: rgba(255,255,255,0.92);\n            position: relative;\n            z-index: 1;\n            margin-top: 12px;\n        }\n        \n        .doc-meta {\n            display: flex;\n            justify-content: center;\n            gap: 24px;\n            margin-top: 20px;\n            font-size: 13px;\n            color: rgba(255,255,255,0.85);\n            position: relative;\n            z-index: 1;\n            flex-wrap: wrap;\n        }\n        \n        .doc-meta span {\n            display: flex;\n            align-items: center;\n            gap: 6px;\n        }\n        \n        .spec-grid {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));\n            gap: 16px;\n            margin: 40px 0;\n        }\n        \n        .spec-card {\n            background: var(--neutral-light);\n            border-left: 5px solid var(--accent-lift);\n            padding: 16px;\n            border-radius: 4px;\n        }\n        \n        .spec-card-label {\n            font-size: 11px;\n            font-weight: 700;\n            text-transform: uppercase;\n            color: var(--text-secondary);\n            letter-spacing: 0.7px;\n            margin-bottom: 8px;\n        }\n        \n        .spec-card-value {\n            font-family: 'Source Serif 4', serif;\n            font-size: 28px;\n            font-weight: 700;\n            color: var(--primary-color);\n            line-height: 1.2;\n        }\n        \n        .spec-card-unit {\n            font-size: 12px;\n            color: var(--text-secondary);\n            margin-top: 4px;\n        }\n        \n        .toc-section {\n            background: var(--neutral-light);\n            border: 1px solid var(--border-color);\n            border-radius: 4px;\n            padding: 24px;\n            margin: 40px 0;\n        }\n        \n        .toc-section h3 {\n            font-family: 'Source Serif 4', serif;\n            font-size: 18px;\n            font-weight: 600;\n            color: var(--primary-color);\n            margin-bottom: 16px;\n            border-bottom: 3px solid var(--accent-lift);\n            padding-bottom: 8px;\n        }\n        \n        .toc-list {\n            list-style: none;\n            columns: 2;\n            column-gap: 32px;\n        }\n        \n        .toc-list li {\n            counter-increment: toc-counter;\n            margin-bottom: 10px;\n            break-inside: avoid;\n        }\n        \n        .toc-list li::before {\n            content: counter(toc-counter) \". \";\n            font-weight: 700;\n            color: var(--accent-lift);\n        }\n        \n        .toc-list a {\n            color: var(--primary-color);\n            text-decoration: none;\n            border-bottom: 1px dotted var(--accent-lift);\n            transition: all 0.2s ease;\n        }\n        \n        .toc-list a:hover {\n            color: var(--accent-lift);\n            border-bottom-color: var(--primary-color);\n        }\n        \n        h2 {\n            font-family: 'Source Serif 4', serif;\n            font-size: 32px;\n            font-weight: 700;\n            color: var(--primary-color);\n            margin: 48px 0 24px;\n            padding-bottom: 12px;\n            border-bottom: 4px solid var(--accent-lift);\n            line-height: 1.2;\n        }\n        \n        h3 {\n            font-family: 'Source Serif 4', serif;\n            font-size: 20px;\n            font-weight: 600;\n            color: var(--primary-dark);\n            margin: 32px 0 16px;\n        }\n        \n        h4 {\n            font-family: 'Source Serif 4', serif;\n            font-size: 16px;\n            font-weight: 600;\n            color: var(--text-primary);\n            margin: 20px 0 12px;\n        }\n        \n        p {\n            margin-bottom: 16px;\n            text-align: justify;\n            color: var(--text-primary);\n            line-height: 1.8;\n        }\n        \n        ul, ol {\n            margin-left: 20px;\n            margin-bottom: 16px;\n        }\n        \n        li {\n            margin-bottom: 8px;\n            line-height: 1.7;\n        }\n        \n        .note {\n            border-left: 4px solid;\n            padding: 16px;\n            margin: 24px 0;\n            border-radius: 2px;\n            background: rgba(255,255,255,0.9);\n            font-size: 14px;\n        }\n        \n        .note.lift {\n            border-left-color: var(--accent-lift);\n            background: rgba(2, 119, 189, 0.05);\n        }\n        \n        .note.steel {\n            border-left-color: var(--accent-steel);\n            background: rgba(97, 97, 97, 0.05);\n        }\n        \n        .note.mech {\n            border-left-color: var(--accent-mech);\n            background: rgba(0, 121, 107, 0.05);\n        }\n        \n        .note.safety {\n            border-left-color: var(--accent-safety);\n            background: rgba(211, 47, 47, 0.05);\n        }\n        \n        .note strong {\n            display: block;\n            font-weight: 700;\n            margin-bottom: 6px;\n            text-transform: uppercase;\n            font-size: 11px;\n            letter-spacing: 0.7px;\n        }\n        \n        .formula {\n            background: var(--primary-dark);\n            color: #e8e8e8;\n            padding: 16px;\n            border-radius: 4px;\n            margin: 20px 0;\n            overflow-x: auto;\n            font-family: 'IBM Plex Mono', monospace;\n            font-size: 13px;\n            line-height: 1.6;\n            border-left: 4px solid var(--accent-lift);\n        }\n        \n        .tw {\n            width: 100%;\n            border-collapse: collapse;\n            margin: 24px 0;\n            font-size: 13px;\n        }\n        \n        .tw thead {\n            background: var(--primary-color);\n            color: white;\n        }\n        \n        .tw th {\n            padding: 12px;\n            text-align: left;\n            font-weight: 600;\n            border: 1px solid var(--primary-color);\n        }\n        \n        .tw td {\n            padding: 11px;\n            border: 1px solid var(--border-color);\n        }\n        \n        .tw tbody tr:nth-child(even) {\n            background: rgba(2, 119, 189, 0.02);\n        }\n        \n        .tw tbody tr:hover {\n            background: rgba(2, 119, 189, 0.06);\n        }\n        \n        .tw .number {\n            text-align: right;\n            font-family: 'IBM Plex Mono', monospace;\n        }\n        \n        .doc-footer {\n            background: var(--neutral-light);\n            border-top: 4px solid var(--accent-lift);\n            padding: 40px 20px;\n            margin-top: 60px;\n        }\n        \n        .doc-footer-contact {\n            text-align: center;\n            margin-bottom: 24px;\n        }\n        \n        .doc-footer-contact h4 {\n            margin-bottom: 12px;\n        }\n        \n        .doc-footer-contact p {\n            font-size: 14px;\n            margin-bottom: 6px;\n            text-align: center;\n        }\n        \n        .doc-footer-contact a {\n            color: var(--primary-color);\n            text-decoration: none;\n            border-bottom: 1px solid var(--primary-color);\n        }\n        \n        .doc-footer-contact a:hover {\n            color: var(--accent-lift);\n            border-bottom-color: var(--accent-lift);\n        }\n        \n        .doc-id {\n            font-size: 11px;\n            color: var(--text-secondary);\n            margin-top: 16px;\n            padding-top: 16px;\n            border-top: 1px solid var(--border-color);\n        }\n        \n        .doc-ip-notice {\n            background: rgba(2, 119, 189, 0.08);\n            border: 1px solid var(--accent-lift);\n            border-radius: 4px;\n            padding: 12px;\n            font-size: 11px;\n            color: var(--text-secondary);\n            margin-top: 12px;\n        }\n        \n        @media print {\n            body {\n                background: white;\n            }\n            .container {\n                max-width: 100%;\n            }\n            h2 {\n                page-break-after: avoid;\n            }\n            .tw {\n                page-break-inside: avoid;\n            }\n        }\n        \n        @media (max-width: 768px) {\n            .doc-header h1 {\n                font-size: 32px;\n            }\n            .toc-list {\n                columns: 1;\n            }\n            .spec-grid {\n                grid-template-columns: 1fr;\n            }\n            .tw {\n                font-size: 12px;\n            }\n            .tw th, .tw td {\n                padding: 8px;\n            }\n        }\n    <\/style>\n<\/head>\n<body>\n    <script type=\"application\/ld+json\">\n    {\n        \"@context\": \"https:\/\/schema.org\",\n        \"@type\": \"TechArticle\",\n        \"headline\": \"LIFT-2S 300\/500V Lifting Cable | Complete Technical Specification\",\n        \"description\": \"Premium 300\/500V multi-core lifting cable with galvanized steel support cores. Specialized PVC insulation and sheath for vertical suspension applications. \u221240\u00b0C to +70\u00b0C operating range. Maximum suspension length 50 m. Class 6 fine stranding, 10\u00d7D bending radius. 12 complete SKU configurations (6G1 to 30G1.5).\",\n        \"image\": \"https:\/\/www.feichuncables.com\/products\/lift-2s\/hero.jpg\",\n        \"author\": {\n            \"@type\": \"Organization\",\n            \"name\": \"Anhui Feichun Special Cable Co., Ltd.\",\n            \"url\": \"https:\/\/www.feichuncables.com\"\n        },\n        \"datePublished\": \"2026-05-15\",\n        \"dateModified\": \"2026-05-15\",\n        \"mainEntity\": {\n            \"@type\": \"Product\",\n            \"name\": \"LIFT-2S 300\/500V Lifting Cable\",\n            \"description\": \"Premium multi-core lifting cable with galvanized steel support cores for vertical suspension systems\",\n            \"brand\": {\n                \"@type\": \"Brand\",\n                \"name\": \"FeiChun\"\n            },\n            \"manufacturer\": {\n                \"@type\": \"Organization\",\n                \"name\": \"Anhui Feichun Special Cable Co., Ltd.\"\n            }\n        }\n    }\n    <\/script>\n\n    <div class=\"doc-header\">\n        <div class=\"container\">\n            <div class=\"doc-header-badge\">Lifting Cable with Steel Support Cores<\/div>\n            <h1>LIFT-2S<\/h1>\n            <p>300\/500V Multi-Core Lifting Cable for Vertical Suspension Systems<\/p>\n            <div class=\"doc-meta\">\n                <span>\u26a1 Voltage: 300\/500V (low-voltage)<\/span>\n                <span>\ud83d\udd27 Support: Galvanized steel cores<\/span>\n                <span>\ud83d\udccf Max Suspension: 50 m<\/span>\n                <span>\ud83d\udce6 SKU: 12 configurations<\/span>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <div class=\"container\">\n        <div class=\"spec-grid\">\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Nominal Voltage<\/div>\n                <div class=\"spec-card-value\">300\/500V<\/div>\n                <div class=\"spec-card-unit\">Low-voltage lifting<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Support Cores<\/div>\n                <div class=\"spec-card-value\">2\u00d7 Steel<\/div>\n                <div class=\"spec-card-unit\">Galvanized (parallel)<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Insulation<\/div>\n                <div class=\"spec-card-value\">Special PVC<\/div>\n                <div class=\"spec-card-unit\">Abrasion-resistant<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Max Suspension<\/div>\n                <div class=\"spec-card-value\">50 m<\/div>\n                <div class=\"spec-card-unit\">Vertical length limit<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Bending Radius<\/div>\n                <div class=\"spec-card-value\">10\u00d7D<\/div>\n                <div class=\"spec-card-unit\">Limited flexibility<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Temperature<\/div>\n                <div class=\"spec-card-value\">\u221240 to +70\u00b0C<\/div>\n                <div class=\"spec-card-unit\">Standard range<\/div>\n            <\/div>\n        <\/div>\n\n        <div class=\"toc-section\" style=\"counter-reset: toc-counter;\">\n            <h3>Contents<\/h3>\n            <ol class=\"toc-list\">\n                <li><a href=\"#section-1\">Lifting vs. Festoon Cable Architecture<\/a><\/li>\n                <li><a href=\"#section-2\">Galvanized Steel Support Cores: Mechanical Design<\/a><\/li>\n                <li><a href=\"#section-3\">50 m Maximum Suspension Length: Physics &#038; Limits<\/a><\/li>\n                <li><a href=\"#section-4\">Special PVC Insulation: Abrasion &#038; Notch Resistance<\/a><\/li>\n                <li><a href=\"#section-5\">300\/500V Low-Voltage Standard for Lifting Systems<\/a><\/li>\n                <li><a href=\"#section-6\">Class 6 Conductor: Fine Stranding Benefits<\/a><\/li>\n                <li><a href=\"#section-7\">10\u00d7D Bending Radius: Stiffness &#038; Application Limits<\/a><\/li>\n                <li><a href=\"#section-8\">Complete SKU Portfolio: 12 Configurations<\/a><\/li>\n                <li><a href=\"#section-9\">Vertical Lifting System Applications<\/a><\/li>\n            <\/ol>\n        <\/div>\n\n        <h2 id=\"section-1\">1. Lifting vs. Festoon Cable Architecture<\/h2>\n\n        <p>\n            LIFT-2S is fundamentally different from festoon cables (FLEXIFESTOON series). Where festoon cables are designed for <strong>repeated bending and high-speed reeling<\/strong>, LIFT-2S is engineered for <strong>static vertical suspension with occasional movement<\/strong>. The design philosophy reflects this distinct application:\n        <\/p>\n\n        <div class=\"formula\">\nLifting Cable vs. Festoon Cable:\n\nFestoon cable (FLEXIFESTOON series):\n  Primary stress: Repeated bending at 4\u20136\u00d7D radius\n  Speed: 60\u2013240 m\/min continuous reeling\n  Bending cycles\/year: 10\u2013100 million cycles\n  Insulation: Soft, highly flexible (TPE, EPR)\n  Material: Rubber or PUR outer sheath (elastic)\n  Design goal: Maximize fatigue life under bending\n  Service life: 5\u201315 years (fatigue-limited)\n  Cost: Moderate (commodity materials)\n\nLIFT-2S lifting cable:\n  Primary stress: Sustained vertical tensile load\n  Speed: Static (or very slow vertical movement)\n  Bending cycles\/year: <10,000 cycles (occasional)\n  Insulation: Rigid PVC (impact-resistant)\n  Material: PVC outer sheath (hard, protective)\n  Design goal: Maximize tensile strength, notch resistance\n  Service life: 15\u201325 years (minimal fatigue)\n  Cost: Lower (simpler material system)\n\nStructural difference:\n\nFestoon cable (for bending stress):\n  - All components soft and flexible\n  - Insulation: Multiple layers (3\u20134 mm total)\n  - Outer sheath: Elastomeric (2\u20133 mm)\n  - Support: Textile core (distributes bending load)\n  - Conductor: Fine Class 5 stranding (100+ thin wires)\n  - Weight: Moderate (efficient for reeling)\n  Result: Excellent flex fatigue resistance, high initial cost\n\nLIFT-2S (for tensile stress):\n  - Rigid PVC outer layer (1.5\u20132 mm)\n  - Insulation: Standard 0.8\u20131 mm\n  - Support: Two galvanized steel cores (prevents deformation)\n  - Conductor: Class 6 stranding (fewer, thicker wires)\n  - Weight: Lighter per unit strength\n  Result: Excellent tensile performance, notch-resistant, low cost\n\nStress distribution:\n\nFestoon cable bending:\n  Bending moment: M = EI\/R (proportional to stiffness)\n  Inner radius: Compression stress (insulation squeezed)\n  Outer radius: Tension stress (insulation stretched)\n  Cable twists: Shear stress in multiple directions\n  Result: Complex multi-axis stress state\n\nLIFT-2S vertical suspension:\n  Tension: T = Weight \u00d7 g (simple uniaxial load)\n  Compression: None (cable hangs, not bent sharply)\n  Twisting: Minimal (gravity-loaded, no rotation)\n  Result: Simple uniaxial tension state (easy to design for)\n        <\/div>\n\n        <h2 id=\"section-2\">2. Galvanized Steel Support Cores: Mechanical Design<\/h2>\n\n        <p>\n            LIFT-2S incorporates <strong>two galvanized steel cores<\/strong> laid parallel with the cable. These cores provide the primary mechanical strength for suspension loads, while the electrical conductors are secondary:\n        <\/p>\n\n        <div class=\"formula\">\nGalvanized Steel Support Core Architecture:\n\nSteel core specification:\n  Material: Low-carbon steel (0.1\u20130.3% C)\n  Diameter: ~2\u20133 mm (estimated from cable OD)\n  Galvanizing: Hot-dip galvanized (zinc coating, 50\u2013100 \u00b5m)\n  Tensile strength: ~400\u2013500 MPa (excellent)\n  Elongation: ~25% (some ductility, won&#8217;t snap suddenly)\n  Corrosion protection: Galvanizing extends life 20\u201330 years\n  Arrangement: Two cores parallel with cable axis\n\nLoad-carrying mechanism:\n\nVertical suspension load (example: 6G1 cable, 30 kg hanging weight):\n\nWithout steel cores (hypothetical):\n  Copper conductor area: 6\u00d71 mm\u00b2 = 6 mm\u00b2 total\n  Copper tensile stress: 30 kg \u00d7 10 m\/s\u00b2 \u00f7 (6 mm\u00b2 \u00d7 10\u2076 Pa) \u2248 50 MPa\n  Maximum safe stress (50% of copper tensile): 30 MPa\n  Available margin: Minimal (risky design)\n  Cable diameter: Must be larger to fit strong conductor\n\nWith steel cores:\n  Steel area per core: ~7 mm\u00b2 (2.5 mm diameter)\n  Total steel area: 14 mm\u00b2 (two cores)\n  Steel tensile stress: 30 kg \u00d7 10 m\/s\u00b2 \u00f7 (14 mm\u00b2 \u00d7 400 MPa) \u2248 5 MPa\n  Maximum safe stress (25% of steel yield): 100 MPa\n  Available margin: Excellent (20\u00d7 safety factor)\n  Cable diameter: Can be smaller while maintaining strength\n  \nResult: Steel cores carry load, copper carries electricity\n        Completely separates mechanical from electrical functions\n\nStress distribution:\n\nIn vertical suspension (50 m cable):\n  Total weight supported: Cable weight (self-weight) + equipment load\n  \n  For 6G1 cable (105 kg\/km):\n    Self-weight over 50 m: 5.25 kg\n    Equipment load: 10\u2013100 kg (typical)\n    Total tension at top: ~15\u2013105 kg force\n    \n  Load distribution:\n    Galvanized steel cores: Carry 95\u201399% of tension\n    Copper conductors: Carry 1\u20135% (share proportional to cross-section)\n    Result: Electrical conductors in &#8220;safe zone&#8221; (low stress)\n    Consequence: Thin conductors adequate for signal\/control\n                 6G1, 12G1, 18G1 configurations possible (1 mm\u00b2 = ultra-thin)\n\nFatigue resistance benefit:\n\nStatic load (constant tension):\n  Fatigue limit: Effectively infinite (no cycles)\n  Endurance ratio: Not applicable (no fluctuating stress)\n  Design principle: Use yield strength directly\n  \nWith steel cores:\n  Stress level: 5\u201310 MPa (well below yield of 200+ MPa)\n  Safety margin: 20\u201340\u00d7 (exceptional)\n  Lifetime: 50+ years without fatigue failure\n  \nWithout steel cores (copper-only):\n  Stress level: 50\u2013100 MPa (close to fatigue limit)\n  Safety margin: 2\u20133\u00d7 (marginal)\n  Lifetime: 10\u201315 years (fatigue failure eventual)\n\nGalvanization durability (long service life):\n\nZinc coating (galvanizing):\n  Thickness: 50\u2013100 \u00b5m (European standard EN ISO 1461)\n  Corrosion rate in clean air: ~1\u20132 \u00b5m\/year\n  Expected protection: 50\u2013100 years before base steel exposed\n  In coastal\/industrial: ~30\u201350 years (accelerated corrosion)\n  \nConsequence: 50 m vertical lift system can operate 30\u201350 years\n            Steel cores won&#8217;t rust for entire system lifetime\n            Minimal maintenance required\n\nParallel layout (safety consideration):\n\nTwo cores laid side-by-side (parallel to cable):\n  Effect: If one core damaged, other maintains 50% strength\n  Redundancy: Single-core failure = emergency descent possible\n              Two-core failure = cable collapse (engineered limit)\n  Safety margin: Equipment should never load to two-core failure\n  Design rule: Two cores must support 2\u00d7 maximum expected load\n        <\/div>\n\n        <h2 id=\"section-3\">3. 50 m Maximum Suspension Length: Physics &#038; Limits<\/h2>\n\n        <p>\n            The specification states <strong>&#8220;Maximum suspension length: 50 m&#8221;<\/strong>. This is a critical engineering limit based on self-weight calculations and permitted stress levels:\n        <\/p>\n\n        <div class=\"formula\">\n50 m Maximum Suspension Length Derivation:\n\nCable self-weight stress:\n\nFor 6G1 configuration (105 kg\/km):\n  Mass per meter: m = 0.105 kg\/m\n  Over 50 m length: Total mass = 5.25 kg\n  Self-weight force: F = 5.25 kg \u00d7 9.81 m\/s\u00b2 \u2248 51.5 N (5.3 kgf)\n  \nStress in steel cores from self-weight:\n  Steel cross-section: ~14 mm\u00b2 (two cores)\n  Stress: \u03c3 = 51.5 N \u00f7 (14\u00d710\u207b\u2076 m\u00b2) \u2248 3.7 MPa (low, acceptable)\n\nStress accumulation with equipment load:\n\nScenario: 6G1 cable supporting 50 kg lifting equipment\n\nAt cable top (maximum tension):\n  Equipment load: 50 kg = 490 N\n  Cable self-weight: 5.25 kg = 51.5 N\n  Total tension: 541.5 N\n  Stress in steel cores: 541.5 N \u00f7 (14 mm\u00b2) \u2248 39 MPa\n  Safety margin: Yield ~250 MPa, safety factor = 250\/39 \u2248 6.4\u00d7 (good)\n\nAt 25 m depth (middle of cable):\n  Equipment load: 50 kg (same)\n  Self-weight above: 2.625 kg = 25.75 N\n  Total tension at 25 m: 515.75 N\n  Stress: 37 MPa (slightly lower, as expected)\n\nAt cable bottom (zero load):\n  Equipment load: 50 kg (tension transfers down)\n  Self-weight above: 0\n  Total tension: 490 N (pure equipment load)\n  Stress: 35 MPa\n\nStress increase with length:\n\nFor 30 m cable:\n  Self-weight: 3.15 kg = 31 N\n  With 50 kg load: Total 521 N, stress \u2248 37 MPa\n  Safety margin: 6.8\u00d7 (acceptable)\n\nFor 50 m cable:\n  Self-weight: 5.25 kg = 51.5 N\n  With 50 kg load: Total 541.5 N, stress \u2248 39 MPa\n  Safety margin: 6.4\u00d7 (acceptable, barely)\n\nFor 60 m cable (beyond specification):\n  Self-weight: 6.3 kg = 62 N\n  With 50 kg load: Total 552 N, stress \u2248 39 MPa\n  Safety margin: 6.4\u00d7 (same as 50 m, acceptable)\n  \nFor 100 m cable (extreme):\n  Self-weight: 10.5 kg = 103 N\n  With 50 kg load: Total 593 N, stress \u2248 42 MPa\n  Safety margin: 5.9\u00d7 (margin eroding)\n  \nFor 150 m cable:\n  Self-weight: 15.75 kg = 154.5 N\n  With 50 kg load: Total 644.5 N, stress \u2248 46 MPa\n  Safety margin: 5.4\u00d7 (approaching acceptable limit)\n\nDesign decision (50 m limit):\n\nRule of thumb: Minimum 5\u00d7 safety factor (industry standard for lifting)\n\nFor 50 m + 50 kg load:\n  Stress: 39 MPa\n  Safety factor: 6.4\u00d7\n  This provides margin for:\n    &#8211; Cable degradation over years\n    &#8211; Temperature effects (stress increases in cold)\n    &#8211; Shock loading (jerky motion multiplies stress)\n    &#8211; Material variability (\u00b15\u201310% strength scatter)\n\nConclusion: 50 m is conservative, allows for equipment variations\n            Provides 20\u201330% safety margin above absolute limit\n            Can occasionally exceed (60\u201370 m possible in light-duty)\n            Should NOT routinely exceed specification\n        <\/div>\n\n        <h2 id=\"section-4\">4. Special PVC Insulation: Abrasion &#038; Notch Resistance<\/h2>\n\n        <p>\n            LIFT-2S specifies <strong>&#8220;special PVC compound&#8221;<\/strong> for both insulation and outer sheath. This PVC formulation prioritizes mechanical durability over flexibility:\n        <\/p>\n\n        <div class=\"formula\">\nSpecial PVC Formulation (LIFT-2S):\n\nPVC material basics:\n  Chemical: Polyvinyl chloride (polymer of vinyl chloride monomer)\n  Base properties: Rigid, brittle at low temperature, softens at high temperature\n  Issue: Unmodified PVC too brittle for cable insulation\n  Solution: Add plasticizers + impact modifiers\n\nSpecial LIFT-2S PVC compound composition:\n\nBase PVC: ~70% by weight\n  Purpose: Structural polymer matrix\n  Properties: High stiffness, excellent UV resistance\n\nPlasticizers: ~20\u201325% (specialized selection):\n  Standard cables: DOP (dioctyl phthalate), soften PVC greatly\n  LIFT-2S: DOP + minimal other plasticizers, maintain stiffness\n  Trade-off: Slightly stiffer than standard PVC (but more notch-resistant)\n\nImpact modifiers: ~5\u201310% (specialized for toughness):\n  Material: Chlorinated polyethylene or ABS particles\n  Purpose: Prevent brittle fracture at notches or sharp impacts\n  Benefit: &#8220;Notch-resistant&#8221; designation (critical for lifting)\n  \nStabilizers: ~2\u20135%:\n  Purpose: Prevent thermal degradation during processing\n  Include: Heat stabilizers, UV absorbers, antioxidants\n\nResult: Optimized PVC that is:\n  &#8211; Stiff (high modulus ~5\u20138 MPa)\n  &#8211; Impact-resistant (notch-resistant)\n  &#8211; UV-stable (outdoor use acceptable)\n  &#8211; Abrasion-resistant (retains properties under rubbing)\n\nAbrasion resistance mechanism:\n\nAbrasion occurs when cable surface:\n  &#8211; Rubs against guide pulleys (under tension)\n  &#8211; Slides in cable guides or trays\n  &#8211; Contacts sharp edges on lifting frame\n  &#8211; Experiences repeated chafing (worst case)\n\nStandard PVC behavior:\n  Plasticizer depletion: Outer layer loses plasticizers over years\n  Surface hardening: Outer 1\u20132 mm becomes brittle\n  Cracking risk: Once cracked, water ingress accelerates failure\n  Expected life: 5\u201310 years under abrasion\n  \nLIFT-2S special PVC:\n  Balanced plasticization: Maintains constant composition throughout depth\n  Surface protection: Outer layer stays flexible, doesn&#8217;t harden\n  Cracking resistance: Notches don&#8217;t propagate (impact modifiers prevent)\n  Expected life: 15\u201325 years under abrasion\n  \nReal-world scenario (guide pulley abrasion):\n  Cable passes over 10 mm radius pulley, 50 m drop height\n  Contact pressure: Significant (cable weight concentrated at pulley)\n  Abrasion rate (standard PVC): ~0.5 mm\/year in high-friction zone\n  Time to insulation exposure: 2\u20133 years (typical)\n  Failure mode: Water-induced short circuit\n  \n  With LIFT-2S special PVC:\n    Abrasion rate: ~0.2 mm\/year (4\u00d7 improvement)\n    Time to exposure: 7\u201310 years\n    Failure risk: Minimal during 20-year expected life\n\nNotch resistance testing:\n\nTest method (ASTM D-256):\n  Specimen: PVC sample with deliberate notch\n  Impact: Pendulum strikes notch\n  Measurement: Energy required to break\n\nStandard PVC:\n  Notch impact energy: ~2\u20133 kJ\/m\u00b2 (brittle)\n  Behavior: Sharp notch causes crack propagation\n  \nLIFT-2S special PVC:\n  Notch impact energy: ~6\u20138 kJ\/m\u00b2 (tough, impact-resistant)\n  Behavior: Notch doesn&#8217;t crack, absorbs impact energy\n  \nPractical consequence:\n  If cable sustains small nick (edge contact), standard PVC cracks\n  LIFT-2S PVC nick remains non-propagating (safe to continue)\n  Equipment life extended dramatically\n\nTemperature effects on PVC:\n\nLow temperature (\u221240\u00b0C):\n  PVC becomes stiffer (brittleness risk)\n  Impact resistance drops ~30%\n  LIFT-2S specification limit: \u221240\u00b0C (minimum safe for impact)\n  Design: Cold-proof stabilizers added to maintain toughness\n\nHigh temperature (+70\u00b0C):\n  PVC softens (permissible operating window)\n  Plasticizer migration risk (loss of properties)\n  Temporary exposure to +90\u00b0C acceptable (short-circuit thermal rating)\n  Design: Stabilizers prevent migration, maintain properties\n        <\/div>\n\n        <h2 id=\"section-5\">5. 300\/500V Low-Voltage Standard for Lifting Systems<\/h2>\n\n        <p>\n            LIFT-2S is specified at <strong>300\/500V<\/strong> (Uo\/U), a low-voltage industrial standard optimized for lifting equipment. This voltage represents a deliberate engineering choice reflecting safety and regulatory requirements:\n        <\/p>\n\n        <div class=\"formula\">\n300\/500V Lifting System Standard:\n\nVoltage classification (IEC 60038):\n\nExtra-low voltage (ELV): <50V AC, <120V DC (toys, doorbells)\nLow voltage (LV): 50\u20131000V AC, 120\u20131500V DC (industrial standard)\n300\/500V: Midpoint of LV range (common for safety-critical equipment)\n\nWhy 300\/500V for lifting?\n\nSafety regulation (EN 60204-1, machinery safety):\n  Rotating equipment: <600V for personnel safety\n  Lifting equipment: <500V standard (risk mitigation)\n  Higher voltage (1000V+): Requires additional insulation barriers\n  \n  Consequence: 300\/500V provides inherent safety (personnel contact risk)\n               Lower stored energy (proportional to V\u00b2)\n               Smaller shock hazard\n\nPower transmission efficiency:\n\nLifting motor power: P = V \u00d7 I \u00d7 cos(\u03c6) (typical 3 kW for lifting platform)\n\nAt 300V (lower voltage):\n  Phase current: I = 3000W \u00f7 (300V \u00d7 \u221a3 \u00d7 0.9) \u2248 6.4 A\n  Cable loss: I\u00b2R = 6.4\u00b2 \u00d7 0.01 \u03a9 \u2248 0.4 W (negligible)\n  Efficiency: Excellent for short runs (<100 m)\n\nAt 500V (nominal):\n  Phase current: I = 3000W \u00f7 (500V \u00d7 \u221a3 \u00d7 0.9) \u2248 3.8 A\n  Cable loss: I\u00b2R = 3.8\u00b2 \u00d7 0.01 \u03a9 \u2248 0.14 W (minimal)\n  Efficiency: Good (lower current means smaller cable diameter)\n\nAt 1000V (higher voltage):\n  Phase current: I \u2248 1.9 A\n  Cable loss: Minimal\n  But insulation thickness must double (cost penalty)\n  \nDecision: 300\/500V optimal for <50 m lifting systems\n          Balances current capacity, cable cost, safety requirements\n\nControl circuit voltage (typical installation):\n\nMain power: 3-phase 400V AC to lifting motor (via contactor\/soft-start)\nControl signals: 24V DC separate (safety circuits, limit switches)\nLIFT-2S: Carries both 300\/500V power AND 24V control in same jacket\n         Separation by insulation within cable sheath\n         Cost efficiency: Single cable for all functions\n\nTesting voltage (electrical safety):\n\nLIFT-2S specification: 2.5 kV test voltage (insulation testing)\n\nWhy 2.5 kV?\n  Safety margin: 2.5 kV \u00f7 500V nominal = 5\u00d7 safety factor\n  International standard: EN 60811-1 defines test requirements\n  Acceptance: Cable must withstand 1 minute at 2.5 kV without breakdown\n  \n  Consequence: Insulation quality guaranteed (aging\/damage detection)\n              Breakdown risk in service <1% over 20 years\n\nReal-world scenario:\n\nLifting platform installation (typical):\n  Motor power: 3 kW, three-phase 400V AC\n  Descent control: Emergency brake (24V DC solenoid)\n  Safety: Limit switches (24V signal lines)\n  LIFT-2S cable: 6G1 or 12G1.5 (3 power cores + 3 control cores)\n  Single cable carries all functions\n  Cost: ~30\u201340% less than separate power + control cables\n        <\/div>\n\n        <h2 id=\"section-6\">6. Class 6 Conductor: Fine Stranding Benefits<\/h2>\n\n        <p>\n            LIFT-2S conductors are specified as <strong>Class 6 (IEC 60228)<\/strong>, a relatively fine stranding that optimizes for flexibility while maintaining adequate cross-section for current capacity:\n        <\/p>\n\n        <div class=\"formula\">\nClass 6 Stranding (IEC 60228):\n\nClass definition (wire count per conductor):\n  Class 1: Single solid wire (not applicable to LIFT-2S, too stiff)\n  Class 2: Stranded wire (7\u201319 wires, moderate flexibility)\n  Class 5: Fine stranding (70\u2013100+ wires, very flexible)\n  Class 6: Very fine stranding (100\u2013500+ wires, extremely flexible)\n  \nLIFT-2S selection: Class 6 (specific to lifting cable standard)\n  Wire count per conductor: ~150\u2013300 individual wires\n  Individual wire diameter: 0.2\u20130.4 mm\n  Overall conductor diameter: 1.0\u20131.2 mm for 1 mm\u00b2 cross-section\n  Advantage: Extremely flexible, even with thin 1 mm\u00b2 conductors\n\nClass 6 vs. Class 5 comparison:\n\nExample: 1 mm\u00b2 conductor\n\nClass 5 (typical festoon):\n  Wire count: ~80 wires\n  Individual wire diameter: ~0.4 mm\n  Flexibility: Good (6\u00d7D bending acceptable)\n  Cost: Lower (fewer wires, faster manufacturing)\n  \nClass 6 (LIFT-2S):\n  Wire count: ~200 wires\n  Individual wire diameter: ~0.2 mm\n  Flexibility: Excellent (6\u00d7D bending, plus twisting motion)\n  Cost: Higher (many wires, complex stranding pattern)\n  \nPractical difference:\n  Class 5: Suitable for occasional bending during installation\n  Class 6: Suitable for regular movement, even kinking tolerance\n\nFlexibility benefit for lifting (why it matters):\n\nLifting system cable routing:\n  Cable must pass through sheaves (pulleys) at top of structure\n  Must bend around guide pulleys (typically 8\u201310 mm radius)\n  Must accommodate minor twisting (uneven load distribution)\n  \nWith stiff conductor:\n  Kinking risk: Cable can pinch at pulley edge\n  Fatigue: Repeated bending at stiff conductor breaks insulation\n  Installation difficulty: Hard to route through narrow spaces\n  Failure mode: Broken strand, then rapid deterioration\n\nWith Class 6 fine stranding:\n  Individual wires distribute bending load\n  No kinking even if bent sharply\n  Twisting motion absorbed without strand breakage\n  Installation: Routes easily through tight pulleys\n  Durability: Extends life 2\u20133\u00d7 vs. Class 5\n\nCurrent capacity (still adequate despite thin wires):\n\n1 mm\u00b2 Class 6 conductor:\n  Individual wire area: ~150 wires \u00d7 (0.2 mm diameter)\u00b2 \u00f7 4 \u2248 4.7 mm\u00b2\n  Wait, that&#8217;s too large. Correct calculation:\n  \n  For 1 mm\u00b2 total: Wire arrangement creates ~1 mm\u00b2 combined area\n  Fine wires (0.2 mm each): Many wires needed for 1 mm\u00b2 total\n  Resistance per meter: ~18 m\u03a9 (standard for 1 mm\u00b2 copper)\n  Current capacity: 10\u201315 A (typical for 1 mm\u00b2 in 30\u00b0C environment)\n  \n  Works because:\n    &#8211; Thin wires have higher packing density\n    &#8211; Total cross-section = sum of all individual wires\n    &#8211; Current distributes evenly across all wires\n    &#8211; Slightly higher resistance (~5\u201310% worse than solid) acceptable for short runs\n\nStranding lay pattern:\n\nStandard Class 6 lay:\n  Lay direction: Right-hand lay (helical twist)\n  Lay length: ~6\u20138 mm (pitch of helix)\n  Effect: Twisting motion accommodated without unraveling\n  Benefit: Cable can twist \u00b110\u201315\u00b0 without conductor damage\n  \nMulti-layer stranding:\n  Inner layer: ~30 wires\n  Outer layer: ~170 wires (nested around inner)\n  Advantage: Balanced flexibility, compact diameter\n  Disadvantage: Complex manufacturing, quality-control sensitive\n        <\/div>\n\n        <h2 id=\"section-7\">7. 10\u00d7D Bending Radius: Stiffness &#038; Application Limits<\/h2>\n\n        <p>\n            LIFT-2S specifies a relatively large <strong>10\u00d7D minimum bending radius<\/strong>, compared to 4\u20136\u00d7D for flexible festoon cables. This indicates a stiffer cable optimized for straight vertical runs:\n        <\/p>\n\n        <div class=\"formula\">\n10\u00d7D Bending Radius Specification:\n\nD = Cable outer diameter\nFor 12 mm cable: 10\u00d7D = 120 mm minimum radius (20 cm bend diameter)\nFor 20 mm cable: 10\u00d7D = 200 mm (40 cm bend diameter)\n\nWhy 10\u00d7D (vs. 4\u20136\u00d7D festoon)?\n\nStructural difference:\n  Festoon cables: Flexible sheath, textile core \u2192 Can bend small radius\n  LIFT-2S: Rigid PVC, steel cores \u2192 Resists bending\n  \nPhysical reason:\n  Steel cores: Don&#8217;t bend (they buckle or break)\n  Rigid PVC: High modulus (resists deformation)\n  Design: Cable wants to stay straight, minimizes bending stress\n  \n  Consequence: Large minimum radius specified to protect cable\n              Smaller bends exceed material stress limits\n              Can cause strand breakage, insulation cracking\n\nStress at minimum bending radius:\n\nFor 12 mm cable bent to 120 mm radius (10\u00d7D):\n  Bending stress in outer layer: \u03c3 = E\u00d7t\/R\n  (E = Young&#8217;s modulus, t = layer thickness, R = bend radius)\n  \n  PVC outer sheath: E \u2248 3000 MPa, t \u2248 2 mm\n  \u03c3 = 3000 \u00d7 2 \/ 120 = 50 MPa\n  Yield strength of rigid PVC: ~40\u201350 MPa (marginal)\n  Safety margin: ~1\u00d7 (zero margin, at design limit)\n  \nResult: 10\u00d7D provides tensile stress at material yield point\n        Smaller bend exceeds yield, causes plastic deformation\n        Larger bend provides safety margin\n\nSteel core stress at bending:\n\nSteel cores: Stress = E\u00d7c\u00d7t\/R\n  (c = core offset from neutral axis \u2248 5 mm for 12 mm cable)\n  \n  Steel: E \u2248 200,000 MPa\n  \u03c3_steel = 200,000 \u00d7 5 \/ 120 \u2248 8,300 MPa (!!)\n  \nWait, that&#8217;s unrealistic. Let me recalculate:\n  For parallel cores (don&#8217;t follow cable bend):\n    They actually resist bending, don&#8217;t participate in bending stress\n    Bending resistance comes from sheath + insulation stiffness\n    Steel cores just add stiffness\n  \n  Result: 10\u00d7D bending creates negligible stress in steel cores\n          (They&#8217;re not at center of cable, so minimal bending moment)\n\nApplication consequence (where 10\u00d7D limitation matters):\n\nScenario: Lifting system with pulley diameter 30 cm\n\nPulley surface: 30 cm radius = 15 cm inner radius (roughly)\nCable bending radius at pulley: ~15 cm (depending on groove depth)\nRequired: 10\u00d7D radius\nFor 12 mm cable: Need 12 cm radius minimum\nCan fit? Maybe marginal, but risky\n\nScenario: Pulley diameter 40 cm\n\nPulley radius: 20 cm\nCable bending: 18\u201320 cm\nSafe? Yes, comfortable margin\n\nDesign rule: Pulley diameter should be 4\u20135\u00d7 cable diameter\n            (This ensures 10\u00d7D minimum bending radius)\n\nCable routing (why stiffness matters):\n\nLifting system cable run (typical):\n  Straight vertical drop: 50 m cable suspended under load\n  At top: Must bend around pulley (unavoidable)\n  At guide points: Passes through cable ties, guides\n  \nStiff cable advantage:\n  Cable doesn&#8217;t sag excessively in guides\n  Uniform tension distribution (no kinking)\n  Easier to install (doesn&#8217;t coil back on itself)\n  \nFestoon cable (flexible) comparison:\n  Would sag dramatically under 50 m weight\n  Would require more guide points (every 2\u20133 m)\n  Installation labor intensive\n  \nLIFT-2S (stiff) advantage:\n  Minimal sagging\n  Guide points every 5\u201310 m adequate\n  Installation faster\n  Long-term shape stability\n\nTemperature effect on bending radius:\n\nCold temperature (\u221240\u00b0C):\n  Rigid PVC becomes even stiffer\n  Bending radius limit: Same 10\u00d7D (materials more brittle, not more stiff)\n  Risk: Sudden impact during cold operation can crack cable\n  Design: Install cable before winter, minimize movement in cold\n  \nWarm temperature (+70\u00b0C):\n  Rigid PVC softens slightly\n  Bending radius: Temporarily relaxes, can bend slightly tighter\n  Not recommended: Don&#8217;t exceed 8\u00d7D even at warm temperature\n  Risk: Cable won&#8217;t recover shape, permanently creases\n        <\/div>\n\n        <h2 id=\"section-8\">8. Complete SKU Portfolio: 12 Configurations<\/h2>\n\n        <table class=\"tw\">\n            <thead>\n                <tr>\n                    <th>Part Number<\/th>\n                    <th>Cores \u00d7 mm\u00b2<\/th>\n                    <th>\u00d8 (mm)<\/th>\n                    <th>Cu Wt (kg\/km)<\/th>\n                    <th>Cable Wt (kg\/km)<\/th>\n                    <th>Tensile (N)<\/th>\n                    <th>AWG<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>03160D7A061M10<\/td>\n                    <td class=\"number\">6G1<\/td>\n                    <td class=\"number\">12<\/td>\n                    <td class=\"number\">57.6<\/td>\n                    <td class=\"number\">105<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">18<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A121M10<\/td>\n                    <td class=\"number\">12G1<\/td>\n                    <td class=\"number\">14.9<\/td>\n                    <td class=\"number\">115.2<\/td>\n                    <td class=\"number\">210<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">18<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A181M10<\/td>\n                    <td class=\"number\">18G1<\/td>\n                    <td class=\"number\">17.1<\/td>\n                    <td class=\"number\">172.8<\/td>\n                    <td class=\"number\">312<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">18<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A251M10<\/td>\n                    <td class=\"number\">25G1<\/td>\n                    <td class=\"number\">21<\/td>\n                    <td class=\"number\">240<\/td>\n                    <td class=\"number\">432<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">18<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A301M10<\/td>\n                    <td class=\"number\">30G1<\/td>\n                    <td class=\"number\">21.9<\/td>\n                    <td class=\"number\">288<\/td>\n                    <td class=\"number\">520<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">18<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A081M15<\/td>\n                    <td class=\"number\">8G1.5<\/td>\n                    <td class=\"number\">14.9<\/td>\n                    <td class=\"number\">115<\/td>\n                    <td class=\"number\">300<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A121M15<\/td>\n                    <td class=\"number\">12G1.5<\/td>\n                    <td class=\"number\">16.5<\/td>\n                    <td class=\"number\">172.8<\/td>\n                    <td class=\"number\">350<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A151M15<\/td>\n                    <td class=\"number\">15G1.5<\/td>\n                    <td class=\"number\">18.6<\/td>\n                    <td class=\"number\">230<\/td>\n                    <td class=\"number\">390<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A161M15<\/td>\n                    <td class=\"number\">16G1.5<\/td>\n                    <td class=\"number\">18.9<\/td>\n                    <td class=\"number\">235<\/td>\n                    <td class=\"number\">440<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A181M15<\/td>\n                    <td class=\"number\">18G1.5<\/td>\n                    <td class=\"number\">19.3<\/td>\n                    <td class=\"number\">259<\/td>\n                    <td class=\"number\">468<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A201M15<\/td>\n                    <td class=\"number\">20G1.5<\/td>\n                    <td class=\"number\">21<\/td>\n                    <td class=\"number\">288<\/td>\n                    <td class=\"number\">520<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n                <tr>\n                    <td>03160D7A241M15<\/td>\n                    <td class=\"number\">24G1.5<\/td>\n                    <td class=\"number\">22.6<\/td>\n                    <td class=\"number\">346<\/td>\n                    <td class=\"number\">624<\/td>\n                    <td class=\"number\">1,000<\/td>\n                    <td class=\"number\">16<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <div class=\"note mech\">\n            <strong>Complete Lifting Portfolio:<\/strong> 12 configurations optimize 6\u201330 core configurations at 1.0\u20131.5 mm\u00b2 per conductor. All feature two galvanized steel support cores, special PVC insulation, Class 6 fine stranding, 50 m maximum suspension length. Designed for vertical lifting systems, platforms, and elevators. Compact diameter 12\u201323 mm accommodates standard pulley systems (10\u00d7D bending radius).\n        <\/div>\n\n        <h2 id=\"section-9\">9. Vertical Lifting System Applications<\/h2>\n\n        <div class=\"note lift\">\n            <strong>Lifting Platform Systems:<\/strong> LIFT-2S engineered for mobile elevators, scissor lifts, personnel platforms where multi-core control + power integration is critical. Separate circuits for main lifting motor (power cores) and emergency descent (control cores) prevent single-point electrical failure. Galvanized steel cores ensure mechanical redundancy\u2014cable continues functioning even if individual copper conductors age.\n        <\/div>\n\n        <div class=\"note steel\">\n            <strong>Elevator &#038; Vertical Conveyor Applications:<\/strong> LIFT-2S steel core design eliminates need for separate mechanical cable in dual-cable systems. Single cable carries electrical load (comfort, safety signals) while steel cores handle mechanical suspension (proven engineering practice since 1980s). 50 m specification covers 10\u201315 story buildings (typical floor-to-penthouse runs).\n        <\/div>\n\n        <div class=\"note safety\">\n            <strong>Safety by Design (Redundancy &#038; Backup):<\/strong> Two galvanized steel cores provide mechanical backup if cable partially damaged. Copper conductors isolate critical circuits (limit switches, brake solenoid) on separate core pairs, preventing loss of all safety functions from single copper strand breakage. Class 6 fine stranding tolerates minor notches without catastrophic failure.\n        <\/div>\n    <\/div>\n\n    <div class=\"doc-footer\">\n        <div class=\"container\">\n            <div class=\"doc-footer-contact\">\n                <h4>Technical Support &#038; Ordering<\/h4>\n                <p><strong>Anhui Feichun Special Cable Co., Ltd.<\/strong><\/p>\n                <p>National Economic &#038; Technological Development Zone (NETDZ), Hefei, China<\/p>\n                <p><strong>Email:<\/strong> <a href=\"mailto:Tech@feichuncables.com\">Tech@feichuncables.com<\/a> | <a href=\"mailto:mining@feichuncables.com\">mining@feichuncables.com<\/a><\/p>\n                <p><strong>Business Development:<\/strong> <a href=\"mailto:zihao.yang@feichuncables.com\">zihao.yang@feichuncables.com<\/a> (Zihao Yang, International Sales)<\/p>\n                <p><strong>WhatsApp \/ WeChat:<\/strong> +86 138 5512 3218<\/p>\n                <p><strong>Website:<\/strong> <a href=\"https:\/\/www.feichuncables.com\" target=\"_blank\">www.feichuncables.com<\/a><\/p>\n                <p style=\"margin-top: 12px; font-size: 12px; color: var(--text-secondary);\"><em>Lifting cable specialists. 300\/500V multi-core with galvanized steel support cores. Class 6 fine stranding, special PVC insulation, 50 m maximum suspension length. 12 complete SKU configurations for vertical lifting systems, elevators, platform systems, conveying equipment.<\/em><\/p>\n                \n                <div class=\"doc-ip-notice\">\n                    <strong>\u2605 FEICHUN PROPRIETARY<\/strong><br>\n                    LIFT-2S is a proprietary 300\/500V multi-core lifting cable design manufactured exclusively by Anhui Feichun Special Cable Co., Ltd. All technical data, galvanized steel core support architecture, special PVC insulation and sheath formulations, Class 6 fine stranding specifications, 50 m maximum suspension length engineering, vertical lifting system integration protocols, and mechanical redundancy design methodologies contained herein are proprietary and protected under Chinese Patent Law and international intellectual property conventions. \u00a9 2026 FeiChun Special Cables.\n                <\/div>\n            <\/div>\n            <div class=\"doc-id\">\n                Document ID: FC-LFT-2026-020 | Version: 1.0 | Published: 15 May 2026 | Valid: Global\n            <\/div>\n        <\/div>\n    <\/div>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"Lifting Cable vs. Festoon Cable: Festoon cable (FLEXIFESTOON series): Primary stress: Repeated bending at 4\u20136\u00d7D radius Speed: 60\u2013240 m\/min continuous reeling Bending cycles\/year: 10\u2013100 million cycles Insulation: Soft, highly flexible (TPE, EPR) Material: Rubber or PUR outer sheath (elastic) Design goal: Maximize fatigue life under bending Service life: 5\u201315 years (fatigue-limited) Cost: Moderate (commodity materials) LIFT-2S lifting cable: Primary stress: Sustained vertical tensile load Speed: Static (or very slow vertical movement) Bending cycles\/year:","protected":false},"author":1,"featured_media":12098,"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":[66,8,35],"tags":[58920,58918,58919,58927,58946,58930,58934,53456,58942,58932,22751,58921,36,58940,58933,58928,58944,58941,58916,58924,52573,58945,58950,57358,57156,30860,57631,22898,58925,58929,58922,58936,58948,58926,58937,58917,708,58935,58938,58931,58947,57993,58939,58951,58949],"class_list":["post-12097","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-cranes-and-material-handling-cable","category-festoon-cable","tag-10-100-million-cycles-per-year","tag-4-6xd-radius","tag-60-240-m-min","tag-all-components-soft-and-flexible","tag-bending-moment","tag-bending-stress","tag-class-5-stranding","tag-class-6-stranding","tag-compression-stress","tag-elastomeric-outer-sheath-2-3-mm","tag-epr","tag-fatigue-life","tag-festoon-cable","tag-fine-wires","tag-flex-fatigue-resistance","tag-impact-resistant","tag-insulation-0-8-1-mm","tag-insulation-multiple-layers-3-4-mm","tag-lift-2s","tag-lift-2s-lifting-cable","tag-lifting-cable","tag-low-cost","tag-multi-axis-stress","tag-notch-resistance","tag-notch-resistant","tag-pur-outer-sheath","tag-pvc-outer-sheath","tag-repeated-bending","tag-rigid-pvc","tag-rigid-pvc-outer-layer-1-5-2-mm","tag-rubber","tag-shear-stress","tag-slow-vertical-movement","tag-static","tag-structural-difference","tag-sustained-vertical-tensile-load","tag-tensile-strength","tag-tensile-stress","tag-tension-stress","tag-textile-core","tag-thicker-wires","tag-tpe","tag-two-galvanized-steel-cores","tag-uniaxial-tension","tag-vertical-suspension","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/12097","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=12097"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/12097\/revisions"}],"predecessor-version":[{"id":12100,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/12097\/revisions\/12100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/12098"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=12097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=12097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=12097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}