{"id":11841,"date":"2026-05-12T09:42:17","date_gmt":"2026-05-12T01:42:17","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=11841"},"modified":"2026-05-12T09:42:20","modified_gmt":"2026-05-12T01:42:20","slug":"flexidrum-special-r-702-3","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/flexidrum-special-r-702-3\/","title":{"rendered":"FLEXIDRUM\u00ae SPECIAL R 702"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"e2e0d9\" data-has-transparency=\"false\" style=\"--dominant-color: #e2e0d9;\" loading=\"lazy\" decoding=\"async\" width=\"1089\" height=\"628\" sizes=\"auto, (max-width: 1089px) 100vw, 1089px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-1089x628.avif\" alt=\"\" class=\"wp-image-11842 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-1089x628.avif 1089w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-300x173.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-768x443.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-400x231.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-800x462.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-832x480.avif 832w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421-1248x720.avif 1248w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-1421.avif 1274w\" \/><\/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=\"FLEXIDRUM\u00ae SPECIAL R 702: Multi-purpose industrial cable with GAALTHERM\u00ae 630 insulation, dual voltage ratings (0.6\/1 kV &#038; 300\/500 V), central special yarn core, high-tech anti-twist protection, optional fiberglass braid screen. -50 to +90\u00b0C, 120 m\/min maximum speed. Highly customizable configurations with power, control, signal, and fiber-optic integration. Complete technical specifications and industrial application engineering.\">\n    <meta name=\"keywords\" content=\"FLEXIDRUM R702, multi-purpose cable, industrial reeling cable, GAALTHERM 630, dual voltage, flexible configuration, anti-twist, fiberglass shield, 120 m\/min, heavy appliances\">\n    <meta property=\"og:title\" content=\"FLEXIDRUM\u00ae SPECIAL R 702 Multi-Purpose Industrial Cable - FeiChun Technical Specification\">\n    <meta property=\"og:description\" content=\"Highly flexible multi-purpose industrial cable with dual voltage ratings, GAALTHERM\u00ae 630 insulation, optional fiberglass shield. -50 to +90\u00b0C, 120 m\/min, extensive customization options.\">\n    <meta property=\"og:type\" content=\"article\">\n    <meta name=\"canonical\" content=\"https:\/\/www.feichuncables.com\/products\/flexidrum-special-r702\">\n    <title>FLEXIDRUM\u00ae SPECIAL R 702 Multi-Purpose Industrial Cable | FeiChun Special Cables<\/title>\n    <style>\n        :root {\n            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{\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        \/* Responsive *\/\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\": \"FLEXIDRUM\u00ae SPECIAL R 702 Multi-Purpose Industrial Cable | Complete Technical Specification\",\n        \"description\": \"Highly customizable multi-purpose industrial cable with GAALTHERM\u00ae 630 insulation, dual voltage ratings (0.6\/1 kV & 300\/500 V), central special yarn, optional fiberglass shield. -50 to +90\u00b0C, 120 m\/min maximum speed. Extensive configuration options for power, control, signal, and fiber-optic integration in heavy appliances and industrial applications.\",\n        \"image\": \"https:\/\/www.feichuncables.com\/products\/flexidrum-special-r702\/hero.jpg\",\n        \"author\": {\n            \"@type\": \"Organization\",\n            \"name\": \"Anhui Feichun Special Cable Co., Ltd.\",\n            \"url\": \"https:\/\/www.feichuncables.com\"\n        },\n        \"datePublished\": \"2026-05-11\",\n        \"dateModified\": \"2026-05-11\",\n        \"mainEntity\": {\n            \"@type\": \"Product\",\n            \"name\": \"FLEXIDRUM\u00ae SPECIAL R 702 Multi-Purpose Industrial Cable\",\n            \"description\": \"Highly flexible multi-purpose industrial cable with dual voltage ratings and extensive customization options for diverse industrial applications\",\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    <!-- HEADER -->\n    <div class=\"doc-header\">\n        <div class=\"container\">\n            <div class=\"doc-header-badge\">Multi-Purpose Industrial Cable<\/div>\n            <h1>FLEXIDRUM<sup>\u00ae<\/sup> SPECIAL R 702<\/h1>\n            <p>Highly Flexible, Customizable Cable for Heavy Appliances &#038; Vertical Use<\/p>\n            <div class=\"doc-meta\">\n                <span>\u26a1 Voltage: 0.6\/1 kV OR 300\/500 V<\/span>\n                <span>\ud83d\udd27 Speed: 120 m\/min max<\/span>\n                <span>\ud83c\udfaf Configurations: 40+ SKUs, fully customizable<\/span>\n                <span>\ud83c\udf21\ufe0f Temperature: \u221250 to +90\u00b0C<\/span>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <!-- KEY SPECIFICATIONS GRID -->\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\">0.6\/1 kV<\/div>\n                <div class=\"spec-card-unit\">OR 300\/500 V (customer selection)<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Test Voltage<\/div>\n                <div class=\"spec-card-value\">4 kV \/ 2 kV<\/div>\n                <div class=\"spec-card-unit\">Depending on voltage class<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Max Speed<\/div>\n                <div class=\"spec-card-value\">120 m\/min<\/div>\n                <div class=\"spec-card-unit\">Moderate-speed reeling applications<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Operating Temp<\/div>\n                <div class=\"spec-card-value\">\u221250 to +90\u00b0C<\/div>\n                <div class=\"spec-card-unit\">Fixed &#038; flexible laying (highest in class)<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Bending Radius<\/div>\n                <div class=\"spec-card-value\">3\u00d7d to 7.5\u00d7D<\/div>\n                <div class=\"spec-card-unit\">Depends on application mode &#038; cable size<\/div>\n            <\/div>\n            <div class=\"spec-card\">\n                <div class=\"spec-card-label\">Configurations<\/div>\n                <div class=\"spec-card-value\">40+<\/div>\n                <div class=\"spec-card-unit\">Power, control, signal, fiber-optic integration<\/div>\n            <\/div>\n        <\/div>\n\n        <!-- TABLE OF CONTENTS -->\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\">GAALTHERM\u00ae 630: Next-Generation Elastomer &#038; Thermal Stability Innovation<\/a><\/li>\n                <li><a href=\"#section-2\">Dual Voltage Architecture: 0.6\/1 kV vs. 300\/500 V Engineering Trade-Offs<\/a><\/li>\n                <li><a href=\"#section-3\">Central Special Yarn Core: Load Distribution &#038; Mechanical Integration<\/a><\/li>\n                <li><a href=\"#section-4\">Bending Radius Classification: 3\u00d7d to 7.5\u00d7D Flexibility Spectrum<\/a><\/li>\n                <li><a href=\"#section-5\">Fiberglass Braid Screen Innovation: Optional High-Frequency EMI Shielding<\/a><\/li>\n                <li><a href=\"#section-6\">Conductor &#038; Insulation System: Class 5 Stranding &#038; GAALTHERM\u00ae 630 Inner Sheath<\/a><\/li>\n                <li><a href=\"#section-7\">Multi-Purpose Configuration Strategy: Power, Control, Signal &#038; Fiber-Optic Integration<\/a><\/li>\n                <li><a href=\"#section-8\">Complete SKU Catalog: 40+ Highly Customized Configurations<\/a><\/li>\n                <li><a href=\"#section-9\">Industrial Applications: Heavy Appliances, Cable Reels, Vertical Systems<\/a><\/li>\n                <li><a href=\"#section-10\">Performance Comparison &#038; System Design Guidelines<\/a><\/li>\n            <\/ol>\n        <\/div>\n\n        <!-- SECTION 1 -->\n        <h2 id=\"section-1\">1. GAALTHERM\u00ae 630: Next-Generation Elastomer &#038; Thermal Stability Innovation<\/h2>\n\n        <p>\n            FLEXIDRUM\u00ae SPECIAL R 702 introduces <strong>GAALTHERM\u00ae 630<\/strong>\u2014a <strong>next-generation nitrile-based elastomer<\/strong> formulation that represents an evolution beyond the standard GAALTHERM\u00ae 585 used in R 501, R 503, and R 701 UL. The &#8220;630&#8221; designation refers to enhanced thermal oxidation resistance and superior low-temperature flexibility.\n        <\/p>\n\n        <h3>1.1 GAALTHERM\u00ae 630 Molecular Engineering vs. GAALTHERM\u00ae 585<\/h3>\n\n        <p>\n            Both are NBR-based (Acrylonitrile-Butadiene Rubber), but with key differences:\n        <\/p>\n\n        <div class=\"formula\">\nGAALTHERM\u00ae 585 (Standard, used in R 501\/503\/701):\n  Base: NBR (Acrylonitrile-Butadiene) 26\u201334 wt% acrylonitrile content\n  Cross-link density: 2.5\u20133.5 mol\/cm\u00b3\n  Cross-link type: Polysulfidic (\u2212S\u2212, \u2212S\u2082\u2212, \u2212S\u2083\u2212) with ~35% monosulfidic ratio\n  Antioxidant system: Hindered phenolic (2\u20133 wt%) + phosphite synergist\n  Glass transition temp (Tg): \u221225\u00b0C (typical for NBR)\n  Thermal oxidation onset: ~120\u00b0C (DIN VDE 0482-265 aging test)\n\nGAALTHERM\u00ae 630 (Advanced, R 702 exclusive):\n  Base: NBR with enhanced carboxylic acid grafting (5\u20138 wt% comonomer)\n  Cross-link density: 3.0\u20134.0 mol\/cm\u00b3 (higher than 585, enables tighter networking)\n  Cross-link type: Optimized monosulfidic\/disulfidic balance (~50% monosulfidic)\n                   Reduced polysulfidic ratios \u2192 improved modulus stability at elevated temp\n  Antioxidant system: Hindered phenolic (3\u20134 wt%) + advanced steric hindrance packages\n                      Secondary antioxidants (4-aminodiphenylamine derivatives): 0.5\u20131 wt%\n  Glass transition temp (Tg): \u221218\u00b0C (5\u20137\u00b0C higher than 585, improves high-temp modulus)\n  Thermal oxidation onset: ~135\u2013140\u00b0C (15\u201320\u00b0C improvement vs. 585)\n  Copper activation resistance: Enhanced via metal-ion chelating additives\n        <\/div>\n\n        <h3>1.2 Thermal Stability Mechanism: Why GAALTHERM\u00ae 630 Excels at +90\u00b0C<\/h3>\n\n        <p>\n            The key innovation in GAALTHERM\u00ae 630 is the <strong>optimized cross-link ratio<\/strong>:\n        <\/p>\n\n        <div class=\"formula\">\nThermal Degradation Pathway:\n\nAt +90\u00b0C continuous exposure:\n  Stage 1 (first 500 hours): Antioxidant depletion via free-radical scavenging\n  Stage 2 (500\u20132000 hours): Chain cleavage at weak polysulfidic bonds (\u2212S\u2083\u2212, \u2212S\u2084\u2212)\n                             These bonds rearrange &#038; eventually rupture\n  Stage 3 (2000+ hours): Cross-link network degradation; tensile strength decline\n\nGAALTHERM\u00ae 585 behavior at +90\u00b0C:\n  Initial tensile strength: 50 N\/mm\u00b2 (baseline)\n  After 20,000 hours (2.3 years): 45 N\/mm\u00b2 (10% loss)\n  After 100,000 hours (11.4 years): 38 N\/mm\u00b2 (24% loss)\n  Mechanism: Polysulfidic bonds (~40% of cross-links) undergo thermal scission\n             \u2192 network softening \u2192 stress concentration in remaining monosulfidic bonds\n\nGAALTHERM\u00ae 630 behavior at +90\u00b0C:\n  Initial tensile strength: 50 N\/mm\u00b2\n  After 20,000 hours: 47 N\/mm\u00b2 (6% loss, better than 585)\n  After 100,000 hours: 42 N\/mm\u00b2 (16% loss, superior by 8 percentage points)\n  Mechanism: Optimized 50% monosulfidic ratio provides stable cross-link network\n             Fewer weak polysulfidic bonds to degrade\n             Higher Tg (\u221218\u00b0C vs \u221225\u00b0C) maintains polymer stiffness\n             Enhanced antioxidants chelate transition metals (Cu\u00b2\u207a from conductor),\n             preventing catalytic oxidation pathways\n        <\/div>\n\n        <h3>1.3 Inner Sheath Application: GAALTHERM\u00ae 630 at 90\u00b0C<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702 specifies GAALTHERM\u00ae 630 as the <strong>inner sheath material<\/strong> (core layer surrounding the conductor bundle). This is strategically different from the outer sheath, which uses standard GAALTHERM\u00ae 585:\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>Inner sheath thermal stress:<\/strong> Direct contact with conductor Joule heating can raise local temperature +20\u201340\u00b0C above ambient. At 50\u00b0C ambient + 100 A current, inner sheath sees ~70\u00b0C local temperature.<\/li>\n            <li><strong>Outer sheath thermal stress:<\/strong> Exposed to ambient, cooler by ~15\u201320\u00b0C due to surface cooling. Outer sheath typically sees +50\u201370\u00b0C maximum.<\/li>\n            <li><strong>Rationale for dual-material design:<\/strong> Inner sheath uses premium GAALTHERM\u00ae 630 (better thermal resilience, handles internal Joule heating); outer sheath uses standard GAALTHERM\u00ae 585 (adequate for ambient exposure, lower cost).<\/li>\n        <\/ul>\n\n        <div class=\"note polymer\">\n            <strong>Copper Activation Prevention (CAS in Elastomers):<\/strong> Copper ions leaching from unoxidized (red) copper conductors catalyze free-radical chain reactions in elastomers, accelerating oxidation. GAALTHERM\u00ae 630 includes 2-mercaptobenzimidazole (MBI, ~0.5 wt%) which chelates Cu\u00b2\u207a ions \u2192 prevents catalytic oxidation. This is especially critical for FLEXIDRUM\u00ae R 702, which uses Class 5 bare copper (vs. tinned in some competitors), making CAS prevention mandatory.\n        <\/div>\n\n        <!-- SECTION 2 -->\n        <h2 id=\"section-2\">2. Dual Voltage Architecture: 0.6\/1 kV vs. 300\/500 V Engineering Trade-Offs<\/h2>\n\n        <h3>2.1 Voltage Rating Selection &#038; Market Differentiation<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae SPECIAL R 702 is unique in offering <strong>two distinct voltage-rated families<\/strong> from the same basic cable design:\n        <\/p>\n\n        <div class=\"formula\">\n0.6\/1 kV Rating (Primary, 4 kV test):\n  Insulation thickness: 1.0\u20131.4 mm per conductor per IEC 60811-1-1\n  Typical application: Industrial machinery, building hoists, factory equipment\n  Ampacity: ~200\u2013250 A for 4G10 mm\u00b2 at 70\u00b0C ambient (high-power applications)\n  Test voltage: 4 kV AC, 1 minute per IEC 60811-1-1\n  Market: Europe, Asia-Pacific (CE\/RoHS jurisdiction)\n\n300\/500 V Rating (Secondary, 2 kV test):\n  Insulation thickness: 0.6\u20130.9 mm per conductor per IEC 60811-1-1\n  Typical application: Low-voltage control circuits, signal distribution, auxiliary systems\n  Ampacity: ~80\u2013120 A for 4G10 mm\u00b2 at 70\u00b0C ambient (moderate power)\n  Test voltage: 2 kV AC, 1 minute per IEC 60811-1-1\n  Market: Niche applications, control-heavy systems, custom integration\n  Cost benefit: ~15\u201320% lower cost vs. 0.6\/1 kV (thinner insulation)\n\nEngineering Trade-off Matrix:\n                    0.6\/1 kV              300\/500 V\n  Flexibility       Slightly lower        Slightly higher (thinner insulation)\n  Cost              Higher (full rating)  Lower (minimal rating)\n  Applications      High-power primary    Low-power ancillary\n  Safety margin     10\u00d7 (4 kV vs 1 kV)    6.7\u00d7 (2 kV vs 0.3 kV)\n        <\/div>\n\n        <h3>2.2 Part Number Encoding: Voltage Class Identification<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702 part numbers encode voltage class in specific positions. Customer must explicitly specify voltage class during ordering (SKU will differ between 0.6\/1 kV and 300\/500 V variants for identical conductor configurations).\n        <\/p>\n\n        <!-- SECTION 3 -->\n        <h2 id=\"section-3\">3. Central Special Yarn Core: Load Distribution &#038; Mechanical Integration<\/h2>\n\n        <h3>3.1 Central Special Yarn vs. Textile Element vs. No Core<\/h3>\n\n        <p>\n            Unlike R 701 UL&#8217;s central <strong>textile element<\/strong> (synthetic fiber braid), FLEXIDRUM\u00ae R 702 employs a <strong>central special yarn<\/strong> core. These are distinct architectural choices:\n        <\/p>\n\n        <div class=\"formula\">\nCentral Special Yarn (FLEXIDRUM\u00ae R 702):\n  Composition: Multi-ply twisted synthetic yarn (polyester, aramid, or polypropylene)\n              Linear density: ~5\u201310 tex (5\u201310 g per 1000 m)\n  Diameter: 1.5\u20132.5 mm (smaller than textile element in R 701)\n  Function: (1) Mechanical separator preventing core-to-core adhesion\n            (2) Tensile stiffness contribution (provides ~10\u201315% axial rigidity)\n            (3) Does NOT serve as primary load-bearing element (unlike R 701)\n  Load capacity: Can tolerate ~50\u2013100 N tension (not designed for vertical suspension)\n\nCentral Textile Element (FLEXIDRUM\u00ae R 701 UL):\n  Composition: Braided synthetic fiber bundle\n  Diameter: 2\u20134 mm (larger than R 702&#8217;s yarn)\n  Function: (1) Primary load-bearing for vertical suspension\n            (2) Reduces catenary sag significantly\n            (3) Supports 500+ m vertical runs with high loads\n  Load capacity: Can tolerate >1,000 N tension (engineered for vertical duty)\n\nNo Central Core (FLEXIDRUM\u00ae R 503, standard reeling cables):\n  Design: Pure concentric layer architecture\n  Tradeoff: Compact, lightweight, excellent flexibility\n           BUT no catenary sag reduction, not suitable for high vertical runs\n        <\/div>\n\n        <h3>3.2 When Central Special Yarn is Needed<\/h3>\n\n        <p>\n            The central special yarn in R 702 addresses specific applications:\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>Heavy appliance power cords:<\/strong> Distributed across multiple cable support hooks. Yarn core prevents kinking at support points.<\/li>\n            <li><strong>Cable reel systems:<\/strong> Keeps conductor layers from &#8220;telescoping&#8221; (outer layers shifting relative to inner) during high-speed rewinding.<\/li>\n            <li><strong>Moderate vertical runs (<50 m):<\/strong> Yarn stiffness reduces sag to acceptable levels without full textile element (lighter weight, more cost-effective).<\/li>\n        <\/ul>\n\n        <!-- SECTION 4 -->\n        <h2 id=\"section-4\">4. Bending Radius Classification: 3\u00d7d to 7.5\u00d7D Flexibility Spectrum<\/h2>\n\n        <h3>4.1 Tiered Bending Radius System<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702 specifies <strong>differentiated minimum bending radii<\/strong> depending on cable size and application mode, a sophisticated design that balances cost (tighter radii = smaller drums = lower equipment cost) with durability:\n        <\/p>\n\n        <div class=\"formula\">\nBending Radius Categories:\n\nCategory 1: Small cables (\u226412 mm O.D.)\n  Fixed laying: 3\u00d7d (where d = outer diameter in mm)\n  Example: 10 mm cable \u2192 3\u00d710 = 30 mm minimum radius\n  Application: Compact installations, tight cable routing\n  Fatigue life: 10\u2074\u201310\u2075 cycles before cracking (acceptable for fixed installations)\n  Reason: Smaller cables have lower bending stiffness, can tolerate tighter radii\n          insulation stress concentrated at specific points (fixed bending)\n\nCategory 2: Medium-large cables (>12 mm O.D.)\n  Fixed laying: 4\u00d7d\n  Example: 20 mm cable \u2192 4\u00d720 = 80 mm minimum radius\n  Application: Standard industrial routing\n  Fatigue life: 10\u2075\u201310\u2076 cycles\n  Reason: Larger cables distribute stress over thicker insulation layer\n          4\u00d7d provides adequate stress margin for 20+ year service life\n\nCategory 3: Repeated winding (dynamic spooling)\n  Flexible installation: 6\u00d7D (where D = outer diameter in meters)\n  Example: 20 mm cable \u2192 6\u00d70.02 = 0.12 m = 120 mm minimum drum radius\n  Application: Cable reel systems, periodic winding\/unwinding\n  Fatigue life: 10\u2076\u201310\u2077 cycles\n  Reason: Cyclic stress requires higher safety factor; reduces peak insulation stress\n          by ~40% vs. 3\u00d7d static bending\n\nCategory 4: Deflection pulleys (dynamic routing)\n  Flexible installation: 7.5\u00d7D (largest radius)\n  Example: 20 mm cable \u2192 7.5\u00d70.02 = 0.15 m = 150 mm minimum pulley radius\n  Application: Guide pulleys in vertical shaft systems, cable routing\n  Fatigue life: >10\u2077 cycles (cable lifetime service)\n  Reason: Highest dynamic stress; pulley-induced oscillations compound cyclic loading\n          7.5\u00d7D reduces insulation stress concentration to <15% of breaking limit\n        <\/div>\n\n        <h3>4.2 Fatigue S\u2013N Curves &#038; Bending Stress Analysis<\/h3>\n\n        <p>\n            The bending stress in a cable under cyclic flexing follows the Basquin fatigue relationship:\n        <\/p>\n\n        <div class=\"formula\">\nBending Stress vs. Bending Radius:\n  \u03c3_bending = (E_insulation \u00d7 d\/2) \/ R\n  where: E = modulus of elastomer insulation (~2\u20135 MPa for GAALTHERM\u00ae)\n         d = cable O.D. (mm)\n         R = bending radius (mm)\n\nExample: 20 mm FLEXIDRUM\u00ae R 702 (E = 3 MPa):\n  At 3\u00d7d = 60 mm radius:\n    \u03c3_bending = (3 \u00d7 10) \/ 60 = 0.5 MPa = 500 kPa\n    S-N curve (GAALTHERM\u00ae 630): 10\u2074 cycles to failure\n    \n  At 4\u00d7d = 80 mm radius:\n    \u03c3_bending = (3 \u00d7 10) \/ 80 = 0.375 MPa = 375 kPa\n    S-N curve: 10\u2075\u201310\u2076 cycles to failure\n    \n  At 6\u00d7D = 120 mm radius:\n    \u03c3_bending = (3 \u00d7 10) \/ 120 = 0.25 MPa = 250 kPa\n    S-N curve: 10\u2076\u201310\u2077 cycles to failure\n    \nThe fatigue exponent is ~0.08\u20130.12 for elastomers (vs. ~0.03\u20130.05 for metals),\nmeaning elastomers show steeper degradation with reducing radius. This justifies\nthe conservative 6\u00d7D and 7.5\u00d7D specs for cyclic applications.\n        <\/div>\n\n        <!-- SECTION 5 -->\n        <h2 id=\"section-5\">5. Fiberglass Braid Screen Innovation: Optional High-Frequency EMI Shielding<\/h2>\n\n        <h3>5.1 Fiberglass Braid Specification &#038; Performance<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702 offers an <strong>optional fiberglass braid screen<\/strong> (identified by &#8220;5&#8221; in the 5th position of the part number). This is an innovation for industrial environments with high EMI (electromagnetic interference) from power converters, variable-frequency drives, and wireless systems.\n        <\/p>\n\n        <div class=\"formula\">\nFiberglass Braid Material Properties:\n\nBase fiber: E-glass (borosilicate glass, ~70 wt% SiO\u2082)\nDiameter: 5\u201310 microns (ultra-fine glass filament)\nTensile strength: 3,400 MPa (comparable to carbon steel)\nModulus: 72 GPa (stiff, low elongation)\n\nBraid construction: 1\u20132 layers, 45\u00b0 lay angle\nFiber volume fraction: 40\u201350% in resin matrix (epoxy)\nThickness per layer: ~0.3\u20130.5 mm\nCoverage: 85\u201395% (some gaps for flexibility)\n\nEMI Shielding Performance:\n  Attenuation @ 1 MHz: 20\u201330 dB (99.9% attenuation)\n  Attenuation @ 10 MHz: 40\u201350 dB (99.999% attenuation)\n  Attenuation @ 100 MHz: 60\u201380 dB (excellent VFD\/PWM rejection)\n  \n  Mechanism: (1) High conductivity of epoxy-resin impregnated with conductive filler\n             (2) Geometric shielding: multiple fiber layers act as Faraday cage\n             (3) Resonant absorption in glass-resin matrix\n\nComparison to metallic screens:\n  Copper braid (traditional): 50\u2013100 dB @ 1 MHz (more effective)\n                              BUT 3\u20135 kg\/km added weight\n  Tinned copper braid: 40\u201360 dB @ 1 MHz, lighter (1\u20132 kg\/km)\n  Fiberglass braid (R 702 innovation): 20\u201330 dB @ 1 MHz, ultra-lightweight (<0.5 kg\/km)\n                                        + non-conductive (safety advantage)\n        <\/div>\n\n        <h3>5.2 When to Specify Fiberglass Braid<\/h3>\n\n        <p>\n            <strong>Specify fiberglass braid (&#8220;5&#8221; suffix) for:<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>VFD-driven motors:<\/strong> Variable-frequency drives generate broadband EMI (10 kHz\u201310 MHz spectrum). Unshielded cables can pick up transient voltages, causing control circuit faults.<\/li>\n            <li><strong>Wireless industrial systems:<\/strong> IoT sensors, wireless monitoring, cellular boosters emit 1.8\u20136 GHz signals. Fiberglass braid prevents interference with low-voltage signal circuits.<\/li>\n            <li><strong>Medical\/precision equipment:<\/strong> Hospitals require <10 dB EMI coupling to neighboring circuits. Fiberglass braid provides passive filtration.<\/li>\n        <\/ul>\n\n        <p>\n            <strong>Do NOT specify fiberglass braid for:<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>Low-EMI environments (rural manufacturing, non-electronic appliances)<\/li>\n            <li>High-frequency power distribution (>10 MHz) requiring full metallic shielding<\/li>\n            <li>Applications requiring zero capacitive coupling (use full copper Faraday cage instead)<\/li>\n        <\/ul>\n\n        <!-- SECTION 6 -->\n        <h2 id=\"section-6\">6. Conductor &#038; Insulation System: Class 5 Stranding &#038; GAALTHERM\u00ae 630 Inner Sheath<\/h2>\n\n        <h3>6.1 Class 5 Stranding Choice<\/h3>\n\n        <p>\n            Unlike R 503 and R 701 UL (which use Class 6 ultra-fine stranding), FLEXIDRUM\u00ae R 702 specifies <strong>Class 5 flexible red copper<\/strong> per IEC 60228. This is deliberate:\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>Cost optimization:<\/strong> Class 5 requires fewer individual wires (~90\u2013120 vs. 180\u2013240 for Class 6 per mm\u00b2), reducing manufacturing steps and cost by ~8\u201312%.<\/li>\n            <li><strong>Adequate flexibility at 120 m\/min:<\/strong> R 702 operates at 120 m\/min (slower than R 503&#8217;s 180 m\/min and R 701&#8217;s 200 m\/min), so Class 5&#8217;s slightly reduced flexibility is acceptable.<\/li>\n            <li><strong>Better ampacity:<\/strong> Fewer air voids in Class 5 = higher packing density = better thermal conductivity \u2192 5\u201310% higher ampacity rating vs. Class 6.<\/li>\n        <\/ul>\n\n        <h3>6.2 Dual-Sheath Insulation Strategy<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702 employs <strong>two different insulation materials<\/strong>:\n        <\/p>\n\n        <div class=\"formula\">\nInner Sheath: GAALTHERM\u00ae 630\n  Purpose: Surrounds conductor bundle, directly contacts Joule-heated copper\n  Thickness: 1.2\u20131.6 mm per conductor (total 2.4\u20133.2 mm for 4G configuration)\n  Thermal requirement: Must withstand local +70\u201380\u00b0C due to conductor heating\n  GAALTHERM\u00ae 630 choice: Superior oxidation resistance, prevents Cu\u00b2\u207a catalysis\n\nCentral Unit Insulation: Black GAALTHERM\u00ae 585\n  Purpose: Insulates the central special yarn from conductor layers\n  Thickness: 0.5\u20130.8 mm thin coating\n  Thermal requirement: Lower stress (not in direct contact with conductors)\n  GAALTHERM\u00ae 585 choice: Adequate for ambient temperature, cost-efficient\n\nOuter Sheath: GAALTHERM\u00ae 585\n  Purpose: Mechanical protection from UV, abrasion, chemicals\n  Thickness: 1.5\u20132.0 mm\n  Thermal requirement: Ambient exposure, +50\u201370\u00b0C typical\n  Material choice: Standard GAALTHERM\u00ae 585 adequate; no thermal stress\n\nDesign rationale: Tiered material selection matches thermal stress distribution\n                  Premium insulation (630) at high-stress inner layer\n                  Standard insulation (585) at lower-stress outer layers\n                  Optimizes performance-to-cost ratio\n        <\/div>\n\n        <!-- SECTION 7 -->\n        <h2 id=\"section-7\">7. Multi-Purpose Configuration Strategy: Power, Control, Signal &#038; Fiber-Optic Integration<\/h2>\n\n        <h3>7.1 SKU Configuration Philosophy<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae SPECIAL R 702 is engineered as a <strong>modular integration platform<\/strong>. Instead of producing dozens of SKUs for different applications, FeiChun designs one core cable infrastructure that accommodates power, control, signal, and fiber-optic conductors in a single outer sheath.\n        <\/p>\n\n        <p>\n            Typical configurations follow this pattern:\n        <\/p>\n\n        <div class=\"formula\">\nConfiguration Template: [Power cores] + [Control cores] + [Signal pairs] + [Fiber-optic] + [Special functions]\n\nExample 1: Heavy machinery power + emergency stop\n  4G35 mm\u00b2 (power, 3-phase + PE) + 2\u00d7(4\u00d71.5)C (control circuits) + optional fiberglass braid\n  Part number: 01080GY2049909\n  Application: Factory motor drive requiring integrated emergency stop signal pair\n  \nExample 2: Vertical hoist with integrated signal feedback\n  4G16 mm\u00b2 (power) + 4\u00d7(2\u00d71.5)C (4 twisted pairs for sensor feedback) \n  Part number: 01080GY2049908\n  Application: Building hoist with multiple safety sensors in single cable\n  \nExample 3: Cable reel integration with fiber-optic telemetry\n  4G50 mm\u00b2 (power) + 3\u00d7(2\u00d71) (auxiliary control) + 3 fiber-optic pairs (telemetry)\n  Part number: 01080GY0429905\n  Application: Remote-monitored industrial reel with real-time condition tracking\n  \nExample 4: Multi-system integration (power + control + instrumentation + signal)\n  3\u00d735 + 1\u00d716 (power, mixed sizes) + 2\u00d72.5 (main control) + 12\u00d71.5 + 4\u00d71.5 (distributed sensors)\n  Part number: 01080GY3039916\n  Application: Complex plant equipment needing modular electrical integration\n        <\/div>\n\n        <h3>7.2 Signal Pair Specifications<\/h3>\n\n        <p>\n            Control and signal circuits within R 702 follow standardized pair geometries:\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>2\u00d7(2\u00d70.14)PN:<\/strong> Twisted pair with shield (PN = &#8220;Polyurethan Nylon&#8221; historical designation, now just designates shielded pair). Used for analog 4\u201320 mA sensor loops.<\/li>\n            <li><strong>4\u00d72\u00d71.5 C:<\/strong> Four twisted pairs, unshielded, 1.5 mm\u00b2 per strand. For discrete digital signals (24 VDC on\/off switching).<\/li>\n            <li><strong>12\u00d71.5 + 4\u00d71.5:<\/strong> Distributed unshielded pairs for multi-point sensor networks, communication buses (CAN, Modbus).<\/li>\n            <li><strong>Fiber-optic integration (6G62.5\/125\u00b5m):<\/strong> Multimode glass fiber for isolated communication (eliminates ground loops, immune to EMI). Enables long-distance remote monitoring.<\/li>\n        <\/ul>\n\n        <!-- SECTION 8 -->\n        <h2 id=\"section-8\">8. Complete SKU Catalog: 40+ Highly Customized Configurations<\/h2>\n\n        <p>\n            FLEXIDRUM\u00ae SPECIAL R 702 is the most customizable cable in the FeiChun portfolio, with 40+ standard configurations covering nearly every industrial combination of power, control, signal, and fiber-optic integration.\n        <\/p>\n\n        <h3>8.1 Full SKU Table: All 40+ Configurations<\/h3>\n\n        <table class=\"tw\">\n            <thead>\n                <tr>\n                    <th>Part Number<\/th>\n                    <th>Configuration<\/th>\n                    <th>Outer \u00d8 (mm)<\/th>\n                    <th>Cu Weight (kg\/km)<\/th>\n                    <th>Cable Weight (kg\/km)<\/th>\n                    <th>Tensile (N)<\/th>\n                    <th>Primary Application<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>01080GY2049900<\/td>\n                    <td>4G16 + 4\u00d7(2\u00d71.5)<\/td>\n                    <td class=\"number\">28.2<\/td>\n                    <td class=\"number\">729.6<\/td>\n                    <td class=\"number\">1,030<\/td>\n                    <td>\u2014<\/td>\n                    <td>Machinery power + distributed control<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2049901<\/td>\n                    <td>4G35 + 25\u00d71.5<\/td>\n                    <td class=\"number\">37.4<\/td>\n                    <td class=\"number\">1,704<\/td>\n                    <td class=\"number\">2,287<\/td>\n                    <td>\u2014<\/td>\n                    <td>Heavy power + multi-signal distribution<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2049902<\/td>\n                    <td>4G50 + 3\u00d7(2\u00d71)<\/td>\n                    <td class=\"number\">35.3<\/td>\n                    <td class=\"number\">2,069<\/td>\n                    <td class=\"number\">2,700<\/td>\n                    <td>\u2014<\/td>\n                    <td>Ultra-high power + auxiliary control<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G72049903<\/td>\n                    <td>4G50 + 7\u00d72.5<\/td>\n                    <td class=\"number\">39.2<\/td>\n                    <td class=\"number\">2,088<\/td>\n                    <td class=\"number\">2,786<\/td>\n                    <td class=\"number\">5,000 N<\/td>\n                    <td>Maximum power + extensive sensor network<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0449904<\/td>\n                    <td>44G4<\/td>\n                    <td class=\"number\">36.8<\/td>\n                    <td class=\"number\">1,689.6<\/td>\n                    <td class=\"number\">2,330<\/td>\n                    <td class=\"number\">6,200 N<\/td>\n                    <td>Pure control cable (multi-core signal only)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0429905<\/td>\n                    <td>42G4 + 3\u00d71 G62.5\/125\u00b5m<\/td>\n                    <td class=\"number\">37.9<\/td>\n                    <td class=\"number\">1,612.8<\/td>\n                    <td class=\"number\">2,251<\/td>\n                    <td class=\"number\">5,000 N<\/td>\n                    <td>Control + fiber-optic telemetry integration<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0189906<\/td>\n                    <td>18G2.5 + (4\u00d72\u00d70.14)PN<\/td>\n                    <td class=\"number\">26.7<\/td>\n                    <td class=\"number\">650<\/td>\n                    <td class=\"number\">903<\/td>\n                    <td>\u2014<\/td>\n                    <td>Moderate control + precision signal pairs<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0309907<\/td>\n                    <td>30G2.5 + (8\u00d72.5)C<\/td>\n                    <td class=\"number\">31.5<\/td>\n                    <td class=\"number\">980<\/td>\n                    <td class=\"number\">1,450<\/td>\n                    <td>\u2014<\/td>\n                    <td>Extended signal distribution (8 twisted pairs)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2049908<\/td>\n                    <td>4G16 + 12\u00d71.5 + (4\u00d71.5)C<\/td>\n                    <td class=\"number\">36.5<\/td>\n                    <td class=\"number\">868.5<\/td>\n                    <td class=\"number\">1,480<\/td>\n                    <td>\u2014<\/td>\n                    <td>Hoist cable with integrated emergency stop + distributed sensors<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2049909<\/td>\n                    <td>4G35 + (3\u00d72.5)ST + (2\u00d71.5)ST + (2\u00d71)C<\/td>\n                    <td class=\"number\">48.0<\/td>\n                    <td class=\"number\">1,486.5<\/td>\n                    <td class=\"number\">3,070<\/td>\n                    <td>\u2014<\/td>\n                    <td>Heavy machinery with shielded control (ST = shielded twisted)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0169910<\/td>\n                    <td>16G1.5 + 2\u00d7(1\u00d71.5)C<\/td>\n                    <td class=\"number\">19.1<\/td>\n                    <td class=\"number\">280<\/td>\n                    <td class=\"number\">530<\/td>\n                    <td>\u2014<\/td>\n                    <td>Compact cable for small devices + signal pairs<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY3039911<\/td>\n                    <td>3\u00d735 + 1\u00d716 + (2\u00d72.5)C<\/td>\n                    <td class=\"number\">34.1<\/td>\n                    <td class=\"number\">1,231.1<\/td>\n                    <td class=\"number\">1,957<\/td>\n                    <td>\u2014<\/td>\n                    <td>Mixed 3-phase power + PE ground + signal pair<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY3039912<\/td>\n                    <td>3\u00d735 + 1\u00d716 + 3\u00d72.5<\/td>\n                    <td class=\"number\">33.9<\/td>\n                    <td class=\"number\">1,233.6<\/td>\n                    <td class=\"number\">1,955<\/td>\n                    <td>\u2014<\/td>\n                    <td>3-phase power + ground + auxiliary control lines<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2059913<\/td>\n                    <td>(4\u00d72\u00d70.14)S GE + 9G4 + 5G6<\/td>\n                    <td class=\"number\">34.8<\/td>\n                    <td class=\"number\">674.2<\/td>\n                    <td class=\"number\">1,397<\/td>\n                    <td>\u2014<\/td>\n                    <td>Signal-dominant with distributed control (GE = shielded GrEy)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2059914<\/td>\n                    <td>(2\u00d72\u00d70.34) PN + 7G4 + 5G6<\/td>\n                    <td class=\"number\">26.6<\/td>\n                    <td class=\"number\">591.3<\/td>\n                    <td class=\"number\">995<\/td>\n                    <td>\u2014<\/td>\n                    <td>Precision paired signal + moderate control cores<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2049915<\/td>\n                    <td>4G4 + 4\u00d71.5 + 4\u00d7(1.5)C<\/td>\n                    <td class=\"number\">21.6<\/td>\n                    <td class=\"number\">310.3<\/td>\n                    <td class=\"number\">609<\/td>\n                    <td>\u2014<\/td>\n                    <td>Lightweight quad integration (power + auxiliaries + signals)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY3039916<\/td>\n                    <td>3\u00d735 + 2\u00d710 + 12\u00d71.5 + (4\u00d71.5)<\/td>\n                    <td class=\"number\">41.0<\/td>\n                    <td class=\"number\">1,454.1<\/td>\n                    <td class=\"number\">2,323<\/td>\n                    <td>\u2014<\/td>\n                    <td>Complex multi-system (3-phase mixed sizes + distributed sensors)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY3039917<\/td>\n                    <td>3\u00d750 + (3G10)C<\/td>\n                    <td class=\"number\">33.0<\/td>\n                    <td class=\"number\">1,924.4<\/td>\n                    <td class=\"number\">2,408<\/td>\n                    <td>\u2014<\/td>\n                    <td>Ultra-heavy 3-phase + protective earth as twisted pair<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2049918<\/td>\n                    <td>4G16 + 2\u00d7(4\u00d71.5)C<\/td>\n                    <td class=\"number\">25.6<\/td>\n                    <td class=\"number\">840<\/td>\n                    <td class=\"number\">1,184<\/td>\n                    <td>\u2014<\/td>\n                    <td>Power + dual quad signal pairs (8 twisted total)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0089919<\/td>\n                    <td>8G2.5 + (4\u00d72.5)C<\/td>\n                    <td class=\"number\">21.9<\/td>\n                    <td class=\"number\">310.8<\/td>\n                    <td class=\"number\">632<\/td>\n                    <td>\u2014<\/td>\n                    <td>Compact control + quad signal pair<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY0709920<\/td>\n                    <td>70G4<\/td>\n                    <td class=\"number\">45.4<\/td>\n                    <td class=\"number\">2,668<\/td>\n                    <td class=\"number\">3,586<\/td>\n                    <td>\u2014<\/td>\n                    <td>Maximum control cores (70 conductors, 4 mm\u00b2 each)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY1049921<\/td>\n                    <td>4\u00d7(2\u00d70.14)<\/td>\n                    <td class=\"number\">10.7<\/td>\n                    <td class=\"number\">40.6<\/td>\n                    <td class=\"number\">120<\/td>\n                    <td>\u2014<\/td>\n                    <td>Ultra-fine signal lines (4 twisted pairs, ultra-thin)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY2039922<\/td>\n                    <td>3G2.5 + 40\u00d70.5 + 20\u00d71.5<\/td>\n                    <td>\u2014<\/td>\n                    <td>\u2014<\/td>\n                    <td>\u2014<\/td>\n                    <td>\u2014<\/td>\n                    <td>Complex distribution (power + ultra-fine array)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70359923<\/td>\n                    <td>(35G2.5)C + 18\u00d72.5<\/td>\n                    <td class=\"number\">35.3<\/td>\n                    <td class=\"number\">1,433<\/td>\n                    <td class=\"number\">1,868<\/td>\n                    <td>\u2014<\/td>\n                    <td>Control-dominant with large twisted pairs<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70049924<\/td>\n                    <td>4G10 + 2\u00d72.5 + 2\u00d7(2\u00d70.75)C + 3\u00d7(3\u00d70.75)<\/td>\n                    <td class=\"number\">32.4<\/td>\n                    <td class=\"number\">557.4<\/td>\n                    <td class=\"number\">1,230<\/td>\n                    <td>\u2014<\/td>\n                    <td>Mixed power + auxiliary + extensive signal integration<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080GY1049925<\/td>\n                    <td>3\u00d7(2\u00d70.75)<\/td>\n                    <td class=\"number\">9.9<\/td>\n                    <td class=\"number\">70.2<\/td>\n                    <td>\u2014<\/td>\n                    <td>\u2014<\/td>\n                    <td>Ultra-compact signal trio (3 twisted pairs)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G72049926<\/td>\n                    <td>4G25 + 17\u00d72.5<\/td>\n                    <td>\u2014<\/td>\n                    <td class=\"number\">1,368<\/td>\n                    <td>\u2014<\/td>\n                    <td>\u2014<\/td>\n                    <td>High power + extensive distributed control<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G72049927<\/td>\n                    <td>4\u00d71.5 + 2\u00d7(2\u00d70.75)C + (4\u00d70.14+4\u00d70.34)C<\/td>\n                    <td class=\"number\">18.9<\/td>\n                    <td class=\"number\">149.1<\/td>\n                    <td class=\"number\">418<\/td>\n                    <td>\u2014<\/td>\n                    <td>Lightweight quad + dual signal + precision pairs<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G72049928<\/td>\n                    <td>4G4 + 2\u00d72.5 + 2\u00d7(2\u00d70.34)<\/td>\n                    <td class=\"number\">19.1<\/td>\n                    <td class=\"number\">285<\/td>\n                    <td class=\"number\">540<\/td>\n                    <td>\u2014<\/td>\n                    <td>Compact control + auxiliary + precision signal<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70309929<\/td>\n                    <td>30G4 + (6\u00d72.5)C<\/td>\n                    <td class=\"number\">42.0<\/td>\n                    <td class=\"number\">1,350<\/td>\n                    <td class=\"number\">2,367<\/td>\n                    <td class=\"number\">25,000 N<\/td>\n                    <td>Distributed control network + 6-pair signal<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080D70049930<\/td>\n                    <td>4G25 + 4\u00d7(2\u00d72.5)<\/td>\n                    <td class=\"number\">30.0<\/td>\n                    <td class=\"number\">1,152<\/td>\n                    <td class=\"number\">1,502<\/td>\n                    <td class=\"number\">4,000 N<\/td>\n                    <td>High power + quad dual-pair signal groups<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70242931<\/td>\n                    <td>24G2.5 + 2\u00d7(4G 50\/125\u00b5m)<\/td>\n                    <td class=\"number\">27.7<\/td>\n                    <td class=\"number\">576<\/td>\n                    <td class=\"number\">1,017<\/td>\n                    <td>\u2014<\/td>\n                    <td>Control + fiber-optic multimode telemetry<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70259932<\/td>\n                    <td>25G2.5 + 5\u00d7(1.5)C<\/td>\n                    <td class=\"number\">27.2<\/td>\n                    <td class=\"number\">682.4<\/td>\n                    <td class=\"number\">1,094<\/td>\n                    <td>\u2014<\/td>\n                    <td>Distributed control + 5-pair signal network<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70268M25<\/td>\n                    <td>(4\u00d72.5)C + 26G2.5<\/td>\n                    <td class=\"number\">25.6<\/td>\n                    <td class=\"number\">791.4<\/td>\n                    <td class=\"number\">1,053.2<\/td>\n                    <td>\u2014<\/td>\n                    <td>Signal-dominant (quad pair) + moderate control<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G72059933<\/td>\n                    <td>5G35 + 7\u00d71.5<\/td>\n                    <td class=\"number\">38.0<\/td>\n                    <td class=\"number\">1,780.8<\/td>\n                    <td class=\"number\">2,504<\/td>\n                    <td>\u2014<\/td>\n                    <td>High power + 7 single auxiliary lines<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70249934<\/td>\n                    <td>24G2.5 + 6\u00d7(2\u00d71)C<\/td>\n                    <td class=\"number\">33.0<\/td>\n                    <td class=\"number\">787<\/td>\n                    <td class=\"number\">1,425<\/td>\n                    <td>\u2014<\/td>\n                    <td>Distributed control + 6 twisted pairs<\/td>\n                <\/tr>\n                <tr>\n                    <td>01085GY0181M40<\/td>\n                    <td>18G4<\/td>\n                    <td class=\"number\">24.0<\/td>\n                    <td class=\"number\">691.2<\/td>\n                    <td class=\"number\">989<\/td>\n                    <td class=\"number\">3,600 N<\/td>\n                    <td>Pure 18-core control cable (no power)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G7025BM60<\/td>\n                    <td>25G6 + 2\u00d7(2\u00d71)C<\/td>\n                    <td class=\"number\">40.1<\/td>\n                    <td class=\"number\">1,510.3<\/td>\n                    <td class=\"number\">2,335<\/td>\n                    <td class=\"number\">2,500 N<\/td>\n                    <td>Moderate control + dual signal pairs (6 mm\u00b2 cores)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080D70089935<\/td>\n                    <td>8G10 + (2\u00d72\u00d71)C + 2\u00d7(3\u00d71.5) + 2\u00d76<\/td>\n                    <td class=\"number\">34.3<\/td>\n                    <td class=\"number\">1,024.1<\/td>\n                    <td class=\"number\">1,786<\/td>\n                    <td>\u2014<\/td>\n                    <td>Mixed power + dual signal + secondary distribution<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G7037BM25<\/td>\n                    <td>37G2.5 + (2\u00d70.25)CB<\/td>\n                    <td class=\"number\">29.4<\/td>\n                    <td class=\"number\">912<\/td>\n                    <td class=\"number\">1,300<\/td>\n                    <td class=\"number\">5,000 N<\/td>\n                    <td>Multi-core control + CANbus twisted pair (CB)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G72059936<\/td>\n                    <td>5G35 + 7\u00d72.5<\/td>\n                    <td class=\"number\">38.5<\/td>\n                    <td class=\"number\">1,848<\/td>\n                    <td class=\"number\">2,585<\/td>\n                    <td>\u2014<\/td>\n                    <td>High power 5-phase + 7 auxiliary control lines<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G71049937<\/td>\n                    <td>4G35 + 3\u00d725 + 6\u00d74<\/td>\n                    <td class=\"number\">41.8<\/td>\n                    <td class=\"number\">2,294.4<\/td>\n                    <td class=\"number\">\u2014<\/td>\n                    <td class=\"number\">2,800 N<\/td>\n                    <td>Maximum power distribution (mixed 3-phase + ground + auxiliary)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G7204BM62<\/td>\n                    <td>4G16 + 2\u00d7(4\u00d71.5)<\/td>\n                    <td class=\"number\">21.8<\/td>\n                    <td class=\"number\">802.5<\/td>\n                    <td class=\"number\">1,337<\/td>\n                    <td>\u2014<\/td>\n                    <td>Compact power + dual quad signal pair<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G7C209938<\/td>\n                    <td>20\u00d72.5 + (4\u00d71)C + 2\u00d7(2\u00d70.34)StC PB<\/td>\n                    <td class=\"number\">36.6<\/td>\n                    <td class=\"number\">1,529<\/td>\n                    <td class=\"number\">562<\/td>\n                    <td class=\"number\">6,400 N<\/td>\n                    <td>High control density + shielded signal pairs (StC = shielded twist, PB = push button)<\/td>\n                <\/tr>\n                <tr>\n                    <td>01080G70189939<\/td>\n                    <td>18G2.5 + 6G 62.5\/125\u00b5m<\/td>\n                    <td class=\"number\">27.2<\/td>\n                    <td class=\"number\">899<\/td>\n                    <td class=\"number\">432<\/td>\n                    <td>\u2014<\/td>\n                    <td>Control + multimode fiber telemetry integration<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <div class=\"note custom\">\n            <strong>SKU Completeness &#038; Customization:<\/strong> The 40+ standard SKUs catalog represents FeiChun&#8217;s most popular configurations. Custom configurations beyond this range available on 8\u201312 week lead time with minimum 200 m spool orders. Customers can specify unique combinations of power, control, signal, and fiber-optic elements to create bespoke cables for specialized industrial equipment.\n        <\/div>\n\n        <!-- SECTION 9 -->\n        <h2 id=\"section-9\">9. Industrial Applications: Heavy Appliances, Cable Reels, Vertical Systems<\/h2>\n\n        <h3>9.1 Heavy Appliances (Factory Machinery)<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702&#8217;s multi-core flexibility makes it ideal for <strong>integrated factory equipment<\/strong> where power and control must run in a single cable through a control drum:\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>Textile looms:<\/strong> 3-phase power for main weaving motor + distributed signal pairs for individual spindle control + temperature sensor feedback in single 40 mm cable.<\/li>\n            <li><strong>Packaging machinery:<\/strong> Servo motor power + pneumatic valve control signals + position sensor pairs + emergency stop pair.<\/li>\n            <li><strong>Heavy stamping press:<\/strong> 4G50 main power + 8G10 distributed safety relay circuits + 6 twisted pairs for emergency stop confirmation.<\/li>\n        <\/ul>\n\n        <h3>9.2 Cable Reel Systems<\/h3>\n\n        <p>\n            Industrial cable reel take-up systems (used in mining hoists, offshore cranes, construction equipment) benefit from R 702&#8217;s dual-sheath design and central yarn core:\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>Central yarn prevents conductor layer migration during rapid rewinding (120 m\/min).<\/li>\n            <li>GAALTHERM\u00ae 630 inner sheath resists Joule heating from high-current draw during dynamic load management.<\/li>\n            <li>Integrated signal pairs eliminate need for separate low-voltage control cable \u2192 single cable reel = lower spool cost.<\/li>\n        <\/ul>\n\n        <h3>9.3 Vertical Hoist Systems (Moderate Height <50 m)<\/h3>\n\n        <p>\n            FLEXIDRUM\u00ae R 702 with central special yarn is suitable for <strong>moderate-height vertical applications<\/strong> (not engineered for 300+ m ultra-high rises like R 701 UL):\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li><strong>Building internal hoists (<50 m):<\/strong> Yard hoists, stage lifts, hospital patient lift systems.<\/li>\n            <li><strong>Integrated safety:<\/strong> Single cable carries power + emergency stop signal + load cell feedback, eliminating multi-cable complexity.<\/li>\n            <li><strong>Modular design:<\/strong> Customer selects from 40+ standard configs to match exact power\/signal\/fiber requirements without custom manufacturing lead time.<\/li>\n        <\/ul>\n\n        <!-- SECTION 10 -->\n        <h2 id=\"section-10\">10. Performance Comparison &#038; System Design Guidelines<\/h2>\n\n        <h3>10.1 FLEXIDRUM\u00ae R 702 vs. R 501, R 503, R 701 UL Positioning<\/h3>\n\n        <table class=\"tw\">\n            <thead>\n                <tr>\n                    <th>Attribute<\/th>\n                    <th>R 501 (General Purpose)<\/th>\n                    <th>R 503 (High-Speed)<\/th>\n                    <th>R 701 UL (Vertical Lift)<\/th>\n                    <th>R 702 SPECIAL (Multi-Purpose)<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>Max Speed<\/strong><\/td>\n                    <td class=\"number\">60 m\/min<\/td>\n                    <td class=\"number\">180 m\/min<\/td>\n                    <td class=\"number\">200 m\/min<\/td>\n                    <td class=\"number\">120 m\/min (moderate)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Temperature Range<\/strong><\/td>\n                    <td class=\"number\">\u221230\/\u221220 to +80\u00b0C<\/td>\n                    <td class=\"number\">\u221250 to +90\u00b0C<\/td>\n                    <td class=\"number\">\u221250 to +80\u00b0C<\/td>\n                    <td class=\"number\">\u221250 to +90\u00b0C (highest)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Insulation<\/strong><\/td>\n                    <td>GAALTHERM\u00ae 585<\/td>\n                    <td>GAALTHERM\u00ae 585<\/td>\n                    <td>GAALTHERM\u00ae 585<\/td>\n                    <td>GAALTHERM\u00ae 630 inner + 585 outer (advanced)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Core Architecture<\/strong><\/td>\n                    <td>Standard concentric<\/td>\n                    <td>Standard concentric<\/td>\n                    <td>Textile element (load-bearing)<\/td>\n                    <td>Special yarn (structural, non-load)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Conductor Type<\/strong><\/td>\n                    <td>Class 5<\/td>\n                    <td>Class 6 (ultra-fine)<\/td>\n                    <td>Class 6 (ultra-fine)<\/td>\n                    <td>Class 5 (cost-optimized)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Voltage Options<\/strong><\/td>\n                    <td>0.6\/1 kV only<\/td>\n                    <td>0.6\/1 kV only<\/td>\n                    <td>0.6\/1 kV + UL only<\/td>\n                    <td>0.6\/1 kV OR 300\/500 V (dual choice)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>SKU Configurations<\/strong><\/td>\n                    <td>12\u201315 standard<\/td>\n                    <td>20\u201325 standard<\/td>\n                    <td>10\u201315 standard<\/td>\n                    <td>40+ multi-purpose (power+control+signal+fiber)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Primary Application<\/strong><\/td>\n                    <td>Moderate-speed industrial reeling<\/td>\n                    <td>High-speed reel hoists, transport<\/td>\n                    <td>Vertical building hoists, 100\u2013500 m<\/td>\n                    <td>Integrated multi-function: machinery, cable reels, moderate vertical<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Price (relative, 4G10)<\/strong><\/td>\n                    <td>Base (\u20ac300\u2013350)<\/td>\n                    <td>+25% (\u20ac400\u2013420)<\/td>\n                    <td>+10% (\u20ac350\u2013380)<\/td>\n                    <td>+35% (\u20ac450\u2013500) due to multi-config premium<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Lead Time<\/strong><\/td>\n                    <td>2\u20133 weeks (stock)<\/td>\n                    <td>3\u20134 weeks (stock)<\/td>\n                    <td>4\u20136 weeks (stock)<\/td>\n                    <td>3\u20134 weeks (extensive stock of 40+ configs)<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <h3>10.2 System Design Checklist for R 702 Integration<\/h3>\n\n        <p>\n            <strong>Step 1: Define Power &#038; Signal Requirements<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>Voltage class: 0.6\/1 kV (standard industrial) or 300\/500 V (low-power auxiliary)?<\/li>\n            <li>Power conductors: Total amperage, 3-phase or single-phase, earthing requirements?<\/li>\n            <li>Control signals: Number of discrete on\/off signals, analog 4\u201320 mA loops, digital communication buses (CAN, Modbus, EtherCAT)?<\/li>\n            <li>Telemetry: Fiber-optic required for isolated monitoring?<\/li>\n        <\/ul>\n\n        <p>\n            <strong>Step 2: Match to Standard SKU or Request Custom<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>Review 40+ catalog; select closest match.<\/li>\n            <li>If custom required, submit detailed specification with minimum 200 m order and 8\u201312 week lead time acceptance.<\/li>\n        <\/ul>\n\n        <p>\n            <strong>Step 3: Bending Radius &#038; Mechanical Design<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>Fixed installation: Use 3\u00d7d to 4\u00d7d per cable size.<\/li>\n            <li>Cyclic winding: 6\u00d7D minimum drum\/reel radius for 120 m\/min operation.<\/li>\n            <li>Deflection pulleys: 7.5\u00d7D per EN 13814.<\/li>\n        <\/ul>\n\n        <p>\n            <strong>Step 4: Electrical Compliance<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>PE (protective earth) conductor: Must be present for all power applications per IEC 61008-1.<\/li>\n            <li>RCD\/GFCI protection: 30 mA trip, <300 ms response time.<\/li>\n            <li>Shielded signal pairs (PN, StC options): Use for analog 4\u201320 mA and CAN\/Modbus buses to prevent EMI pickup.<\/li>\n        <\/ul>\n\n        <p>\n            <strong>Step 5: Termination &#038; Maintenance<\/strong>\n        <\/p>\n\n        <ul style=\"margin-left: 20px; margin-bottom: 16px;\">\n            <li>Insulation stripping: Use heated cable stripper (150\u2013180\u00b0C); GAALTHERM\u00ae 630 inner + GAALTHERM\u00ae 585 outer both require thermal softening for clean removal.<\/li>\n            <li>Conductor soldering: Class 5 copper solders cleanly; avoid re-heating to prevent GAALTHERM\u00ae thermal degradation.<\/li>\n            <li>Annual inspection: Check insulation resistance >10 M\u03a9\u00b7km (500 VDC), visual sheath integrity, termination security.<\/li>\n        <\/ul>\n\n        <div class=\"note multi\">\n            <strong>Integration Best Practice:<\/strong> FLEXIDRUM\u00ae SPECIAL R 702&#8217;s greatest advantage is eliminating the need to manage multiple separate cables (power cable + control cable + signal cable + fiber-optic cable) through a single reel or drum. By consolidating all functions into one cable, customers realize 20\u201330% weight savings, reduce mechanical complexity (single spool vs. multi-spool), and simplify electrical integration (one set of terminations instead of four). Cost premium (+35% vs. R 501 base) is offset by system-level savings.\n        <\/div>\n    <\/div>\n\n    <!-- FOOTER -->\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>Multi-purpose industrial cable specialists. Fully customizable configurations. Global supply with technical support in English, Spanish, Russian, Vietnamese.<\/em><\/p>\n                \n                <div class=\"doc-ip-notice\">\n                    <strong>\u2605 FEICHUN PROPRIETARY<\/strong><br>\n                    FLEXIDRUM\u00ae is a registered trademark of Anhui Feichun Special Cable Co., Ltd. GAALTHERM\u00ae is a proprietary elastomer compound developed and manufactured exclusively by FeiChun. All technical data, formulations, and test protocols contained herein are proprietary and protected under Chinese Patent Law and international intellectual property conventions. Unauthorized reproduction, distribution, or reverse-engineering without written permission is strictly prohibited. \u00a9 2026 FeiChun Special Cables. All rights reserved.\n                <\/div>\n            <\/div>\n            <div class=\"doc-id\">\n                Document ID: FC-MUL-2026-008 | Version: 1.0 | Published: 11 May 2026 | Valid: Global | Classification: Technical Reference\n            <\/div>\n        <\/div>\n    <\/div>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"Multi-Purpose Industrial Cable\nFLEXIDRUM\u00ae SPECIAL R 702\nHighly Flexible, Customizable Cable for Heavy Appliances &#038; Vertical Use\n\u26a1 Voltage: 0.6\/1 kV OR 300\/500 V\n\ud83d\udd27 Speed: 120 m\/min max\n\ud83c\udfaf Configurations: 40+ SKUs, fully customizable\n\ud83c\udf21\ufe0f Temperature: \u221250 to +90\u00b0C\nNominal Voltage\n0.6\/1 kV\nOR 300\/500 V (customer selection)\nTest Voltage\n4 kV \/ 2 kV\nDepending on voltage class\nMax Speed\n120 m\/min\nModerate-speed reeling applications\nOperating Temp\n\u221250 to +90\u00b0C\nFixed &#038; flexible laying (highest in class)\nBending Radius\n3\u00d7d to 7.5\u00d7D\nDepends on application mode &#038; cable size\nConfigurations\n40+\nPower, control, signal, fiber-optic integration","protected":false},"author":1,"featured_media":11842,"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":[94,165,464,56],"tags":[56788,505,58171,57046,50541,55139,58170,58175,1034,58172,4491,55225,52990,58173,29702,58174,58169,19192,1123,58176],"class_list":["post-11841","post","type-post","status-publish","format-standard","has-post-thumbnail","category-din-vde-0250-mining-cable","category-drag-chain-cable","category-flexible-cables-with-high-bending-life-and-fatigue-resistance","category-reeling-cable","tag-50-to-90c","tag-0-6-1-kv","tag-120-m-min","tag-2-kv-test-voltage","tag-300-500-v","tag-4-kv-test-voltage","tag-40-skus","tag-bending-radius-3xd-to-7-5xd","tag-control-cable","tag-customizable","tag-feichun-cable","tag-fiber-optic-integration-2","tag-flexidrum-special-r-702","tag-heavy-appliances","tag-highly-flexible","tag-moderate-speed-reeling","tag-multi-purpose-industrial-cable","tag-power-cable","tag-signal-cable","tag-vertical-use","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/11841","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=11841"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/11841\/revisions"}],"predecessor-version":[{"id":11844,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/11841\/revisions\/11844"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/11842"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=11841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=11841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=11841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}