{"id":351,"date":"2025-09-22T11:35:09","date_gmt":"2025-09-22T03:35:09","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=351"},"modified":"2025-09-22T11:35:12","modified_gmt":"2025-09-22T03:35:12","slug":"h07rn8-f-submersible-pump-cable-450-750v-harmonized-rubber-cable-for-underwater-applications-technical-specifications","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/h07rn8-f-submersible-pump-cable-450-750v-harmonized-rubber-cable-for-underwater-applications-technical-specifications\/","title":{"rendered":"H07RN8-F Submersible Pump Cable 450\/750V | Harmonized Rubber Cable for Underwater Applications | Technical Specifications"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"811\" height=\"329\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-19.png\" alt=\"\" class=\"wp-image-352\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-19.png 811w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-19-300x122.png 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-19-768x312.png 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-19-400x162.png 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-19-800x325.png 800w\" \/><\/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    <title>H07RN8-F Submersible Pump Cable 450\/750V | Harmonized Rubber Cable for Underwater Applications | Technical Specifications<\/title>\n    <meta name=\"description\" content=\"H07RN8-F harmonized rubber cable technical guide for submersible pump applications. Water-resistant cable rated 450\/750V suitable for 10m water depth, 40\u00b0C temperature. Complete specifications, international standards DIN VDE 0282, conductor sizing charts.\">\n    <meta name=\"author\" content=\"Liu Jianming, Senior Subsea Cable Engineer\">\n    <meta name=\"robots\" content=\"index, follow\">\n    <link rel=\"canonical\" href=\"https:\/\/www.feichuncables.com\/h07rn8-f-submersible-cable\">\n    \n    <!-- Schema Markup -->\n    <script type=\"application\/ld+json\">\n    {\n        \"@context\": \"https:\/\/schema.org\",\n        \"@type\": \"Product\",\n        \"name\": \"H07RN8-F Submersible Cable\",\n        \"manufacturer\": {\n            \"@type\": \"Organization\",\n            \"name\": \"Anhui Feichun Special Cable Co., Ltd.\"\n        },\n        \"description\": \"Harmonized rubber cable for submersible pump applications\",\n        \"category\": \"Submersible Industrial Cables\"\n    }\n    <\/script>\n    \n    <style>\n        * {\n            margin: 0;\n            padding: 0;\n            box-sizing: border-box;\n        }\n        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var(--dark);\n            padding: 3rem 0;\n            text-align: center;\n            color: var(--text-dim);\n            border-top: 1px solid #333;\n        }\n        \n        @media (max-width: 768px) {\n            h1 {\n                font-size: 2rem;\n            }\n            \n            h2 {\n                font-size: 1.8rem;\n            }\n            \n            .nav-list {\n                gap: 1rem;\n                font-size: 0.9rem;\n            }\n            \n            .data-table {\n                font-size: 0.9rem;\n            }\n            \n            .data-table th,\n            .data-table td {\n                padding: 0.5rem;\n            }\n        }\n    <\/style>\n<\/head>\n<body>\n    <header class=\"hero\">\n        <div class=\"container\">\n            <h1>H07RN8-F Submersible Cable<\/h1>\n            <p class=\"tagline\">Harmonized Rubber Cable for Underwater Pump Applications<\/p>\n            <p style=\"color: #999;\">450\/750V | Water Depth: 10m | Temperature: up to 40\u00b0C<\/p>\n            <p style=\"margin-top: 1rem; color: #ccc;\">Anhui Feichun Special Cable Co., Ltd. &#8211; Engineered for Submersible Excellence<\/p>\n        <\/div>\n    <\/header>\n    \n    <nav class=\"nav-bar\">\n        <div class=\"container\">\n            <ul class=\"nav-list\">\n                <li><a href=\"#technical\">Technical Overview<\/a><\/li>\n                <li><a href=\"#construction\">Cable Construction<\/a><\/li>\n                <li><a href=\"#dimensions\">Dimensions &#038; Data<\/a><\/li>\n                <li><a href=\"#water\">Water Performance<\/a><\/li>\n                <li><a href=\"#applications\">Applications<\/a><\/li>\n                <li><a href=\"#standards\">Global Standards<\/a><\/li>\n                <li><a href=\"#faq\">Technical FAQ<\/a><\/li>\n                <li><a href=\"#expert\">Expert Analysis<\/a><\/li>\n            <\/ul>\n        <\/div>\n    <\/nav>\n    \n    <main class=\"container\">\n        <section id=\"technical\">\n            <h2>Technical Overview &#038; Performance Metrics<\/h2>\n            \n            <div class=\"highlight-panel\">\n                <h3>Engineered for Submersible Excellence<\/h3>\n                <p>The H07RN8-F represents the pinnacle of harmonized rubber cable technology, specifically engineered for continuous submersion in industrial water environments. This specialized cable employs advanced elastomeric compounds conforming to DIN VDE 0282 Part 16, ensuring reliable power transmission in challenging aquatic conditions where conventional cables would fail catastrophically.<\/p>\n                \n                <div class=\"spec-row\">\n                    <div class=\"spec-box\">\n                        <div class=\"spec-title\">Rated Voltage<\/div>\n                        <div class=\"spec-value\">450\/750V<\/div>\n                    <\/div>\n                    <div class=\"spec-box\">\n                        <div class=\"spec-title\">Max Water Depth<\/div>\n                        <div class=\"spec-value\">10 meters<\/div>\n                    <\/div>\n                    <div class=\"spec-box\">\n                        <div class=\"spec-title\">Water Temperature<\/div>\n                        <div class=\"spec-value\">40\u00b0C max<\/div>\n                    <\/div>\n                    <div class=\"spec-box\">\n                        <div class=\"spec-title\">Conductor Class<\/div>\n                        <div class=\"spec-value\">Class 5<\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n            \n            <h3>Core Engineering Advantages<\/h3>\n            <div class=\"feature-grid\">\n                <div class=\"feature-card\">\n                    <h4 style=\"color: var(--accent); margin-bottom: 1rem;\">Hydrostatic Pressure Resistance<\/h4>\n                    <p>Withstands continuous pressure up to 1 bar (10m water column) without deformation or electrical degradation. The multi-layer rubber construction maintains dimensional stability under cyclic pressure variations typical in pump operation.<\/p>\n                <\/div>\n                \n                <div class=\"feature-card\">\n                    <h4 style=\"color: var(--accent); margin-bottom: 1rem;\">Water Ingress Protection<\/h4>\n                    <p>Specialized EM2 rubber compound provides IPX8 protection level. Molecular cross-linking prevents water molecule penetration even under prolonged submersion, maintaining insulation resistance >100 M\u03a9\/km after 1000 hours immersion.<\/p>\n                <\/div>\n                \n                <div class=\"feature-card\">\n                    <h4 style=\"color: var(--accent); margin-bottom: 1rem;\">Chemical Resilience<\/h4>\n                    <p>Resistant to industrial water contaminants including chlorides, sulfates, and moderate pH variations (5.5-9.0). The EI4 insulation compound resists hydrolysis and maintains mechanical properties in mineralized water environments.<\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n        \n        <section id=\"construction\">\n            <h2>Advanced Cable Construction Architecture<\/h2>\n            \n            <div class=\"application-card\">\n                <h3>Layer-by-Layer Construction Analysis<\/h3>\n                \n                <h4 style=\"color: var(--accent); margin-top: 1.5rem;\">1. Conductor System (Core)<\/h4>\n                <ul style=\"margin-left: 2rem; line-height: 1.8;\">\n                    <li><strong>Material:<\/strong> Electrolytic copper, purity >99.95%<\/li>\n                    <li><strong>Configuration:<\/strong> Class 5 flexible stranded per IEC 60228<\/li>\n                    <li><strong>Stranding:<\/strong> Concentric lay, maximum lay length 30\u00d7OD<\/li>\n                    <li><strong>Surface treatment:<\/strong> Tin-plated option for enhanced corrosion resistance<\/li>\n                <\/ul>\n                \n                <h4 style=\"color: var(--accent); margin-top: 1.5rem;\">2. Primary Insulation (EI4 Compound)<\/h4>\n                <ul style=\"margin-left: 2rem; line-height: 1.8;\">\n                    <li><strong>Composition:<\/strong> Ethylene-propylene rubber (EPR) based<\/li>\n                    <li><strong>Dielectric strength:<\/strong> >20 kV\/mm<\/li>\n                    <li><strong>Temperature index:<\/strong> 90\u00b0C continuous, 250\u00b0C short circuit (5s)<\/li>\n                    <li><strong>Elongation at break:<\/strong> >200% per IEC 60811<\/li>\n                <\/ul>\n                \n                <h4 style=\"color: var(--accent); margin-top: 1.5rem;\">3. Inner Sheath (EM2\/EM3 &#8211; for \u226510mm\u00b2 or >5 cores)<\/h4>\n                <ul style=\"margin-left: 2rem; line-height: 1.8;\">\n                    <li><strong>Function:<\/strong> Mechanical separation and circular form maintenance<\/li>\n                    <li><strong>Material:<\/strong> Polychloroprene-based rubber compound<\/li>\n                    <li><strong>Thickness calculation:<\/strong> 0.035D + 0.8mm (D = laid-up core diameter)<\/li>\n                <\/ul>\n                \n                <h4 style=\"color: var(--accent); margin-top: 1.5rem;\">4. Outer Sheath (EM2 Compound)<\/h4>\n                <ul style=\"margin-left: 2rem; line-height: 1.8;\">\n                    <li><strong>Type:<\/strong> Heavy-duty polychloroprene rubber<\/li>\n                    <li><strong>Properties:<\/strong> Oil-resistant, weather-resistant, ozone-resistant<\/li>\n                    <li><strong>Tensile strength:<\/strong> >10 N\/mm\u00b2<\/li>\n                    <li><strong>Abrasion resistance:<\/strong> <150 mm\u00b3 per DIN 53516<\/li>\n                <\/ul>\n            <\/div>\n        <\/section>\n        \n        <section id=\"dimensions\">\n            <h2>Comprehensive Dimensional Data &#038; Specifications<\/h2>\n            \n            <h3>Single Core &#038; Multi-Core Configurations<\/h3>\n            \n            <table class=\"data-table\">\n                <thead>\n                    <tr>\n                        <th>Configuration<\/th>\n                        <th>Insulation (mm)<\/th>\n                        <th>Inner Sheath (mm)<\/th>\n                        <th>Outer Sheath (mm)<\/th>\n                        <th>Min OD (mm)<\/th>\n                        <th>Max OD (mm)<\/th>\n                        <th>Weight (kg\/km)<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>1\u00d71.5 mm\u00b2<\/td>\n                        <td>0.8<\/td>\n                        <td>&#8211;<\/td>\n                        <td>1.4<\/td>\n                        <td>5.7<\/td>\n                        <td>6.7<\/td>\n                        <td>60<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>3G1.5 mm\u00b2<\/td>\n                        <td>0.8<\/td>\n                        <td>&#8211;<\/td>\n                        <td>1.6<\/td>\n                        <td>9.2<\/td>\n                        <td>11.2<\/td>\n                        <td>170<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G2.5 mm\u00b2<\/td>\n                        <td>0.9<\/td>\n                        <td>&#8211;<\/td>\n                        <td>1.9<\/td>\n                        <td>12.1<\/td>\n                        <td>14.5<\/td>\n                        <td>290<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>5G4 mm\u00b2<\/td>\n                        <td>1.0<\/td>\n                        <td>&#8211;<\/td>\n                        <td>2.2<\/td>\n                        <td>15.6<\/td>\n                        <td>19.0<\/td>\n                        <td>505<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G6 mm\u00b2<\/td>\n                        <td>1.0<\/td>\n                        <td>&#8211;<\/td>\n                        <td>2.3<\/td>\n                        <td>15.7<\/td>\n                        <td>19.0<\/td>\n                        <td>550<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>3G10 mm\u00b2<\/td>\n                        <td>1.2<\/td>\n                        <td>1.3<\/td>\n                        <td>2.0<\/td>\n                        <td>19.1<\/td>\n                        <td>22.5<\/td>\n                        <td>715<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>5G16 mm\u00b2<\/td>\n                        <td>1.2<\/td>\n                        <td>1.5<\/td>\n                        <td>2.4<\/td>\n                        <td>26.4<\/td>\n                        <td>31.0<\/td>\n                        <td>1610<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G25 mm\u00b2<\/td>\n                        <td>1.4<\/td>\n                        <td>1.6<\/td>\n                        <td>2.2<\/td>\n                        <td>28.9<\/td>\n                        <td>33.0<\/td>\n                        <td>1890<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G35 mm\u00b2<\/td>\n                        <td>1.4<\/td>\n                        <td>1.7<\/td>\n                        <td>2.7<\/td>\n                        <td>32.5<\/td>\n                        <td>36.5<\/td>\n                        <td>2505<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G50 mm\u00b2<\/td>\n                        <td>1.6<\/td>\n                        <td>1.9<\/td>\n                        <td>2.9<\/td>\n                        <td>37.7<\/td>\n                        <td>42.0<\/td>\n                        <td>3350<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G70 mm\u00b2<\/td>\n                        <td>1.6<\/td>\n                        <td>2.0<\/td>\n                        <td>3.2<\/td>\n                        <td>42.7<\/td>\n                        <td>47.0<\/td>\n                        <td>4785<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G95 mm\u00b2<\/td>\n                        <td>1.8<\/td>\n                        <td>2.3<\/td>\n                        <td>3.6<\/td>\n                        <td>48.4<\/td>\n                        <td>54.0<\/td>\n                        <td>6090<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G120 mm\u00b2<\/td>\n                        <td>1.8<\/td>\n                        <td>2.4<\/td>\n                        <td>3.6<\/td>\n                        <td>53.0<\/td>\n                        <td>59.0<\/td>\n                        <td>7550<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>4G150 mm\u00b2<\/td>\n                        <td>2.0<\/td>\n                        <td>2.6<\/td>\n                        <td>3.9<\/td>\n                        <td>58.0<\/td>\n                        <td>64.0<\/td>\n                        <td>8495<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n            \n            <h3>Large Single Core Specifications<\/h3>\n            \n            <table class=\"data-table\">\n                <thead>\n                    <tr>\n                        <th>Cross Section<\/th>\n                        <th>Insulation (mm)<\/th>\n                        <th>Outer Sheath (mm)<\/th>\n                        <th>Min OD (mm)<\/th>\n                        <th>Max OD (mm)<\/th>\n                        <th>Weight (kg\/km)<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>1\u00d7185 mm\u00b2<\/td>\n                        <td>2.2<\/td>\n                        <td>3.4<\/td>\n                        <td>27.6<\/td>\n                        <td>31.5<\/td>\n                        <td>2230<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>1\u00d7240 mm\u00b2<\/td>\n                        <td>2.4<\/td>\n                        <td>3.5<\/td>\n                        <td>30.6<\/td>\n                        <td>35.0<\/td>\n                        <td>2945<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>1\u00d7300 mm\u00b2<\/td>\n                        <td>2.6<\/td>\n                        <td>3.6<\/td>\n                        <td>33.5<\/td>\n                        <td>38.0<\/td>\n                        <td>3495<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>1\u00d7630 mm\u00b2<\/td>\n                        <td>3.0<\/td>\n                        <td>4.1<\/td>\n                        <td>45.5<\/td>\n                        <td>51.0<\/td>\n                        <td>7020<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/section>\n        \n        <section id=\"water\">\n            <h2>Water Performance &#038; Submersible Characteristics<\/h2>\n            \n            <div class=\"highlight-panel\">\n                <h3>Hydro-Performance Testing Results<\/h3>\n                \n                <div class=\"feature-grid\">\n                    <div class=\"feature-card\">\n                        <h4 style=\"color: var(--accent);\">Immersion Endurance Test<\/h4>\n                        <p><strong>Standard:<\/strong> HD 22.16 S1 Clause 5.4<\/p>\n                        <p><strong>Conditions:<\/strong> 1000 hours at 40\u00b0C, 1 bar pressure<\/p>\n                        <p><strong>Results:<\/strong><\/p>\n                        <ul style=\"margin-left: 1rem;\">\n                            <li>Insulation resistance: >500 M\u03a9\u00b7km<\/li>\n                            <li>Dielectric strength retention: 98%<\/li>\n                            <li>Volume resistivity: >10\u00b9\u00b3 \u03a9\u00b7cm<\/li>\n                        <\/ul>\n                    <\/div>\n                    \n                    <div class=\"feature-card\">\n                        <h4 style=\"color: var(--accent);\">Dynamic Pressure Cycling<\/h4>\n                        <p><strong>Test protocol:<\/strong> 0-1.5 bar, 10,000 cycles<\/p>\n                        <p><strong>Frequency:<\/strong> 1 cycle\/minute<\/p>\n                        <p><strong>Performance metrics:<\/strong><\/p>\n                        <ul style=\"margin-left: 1rem;\">\n                            <li>No jacket delamination<\/li>\n                            <li>Maintained flexibility: <15% stiffness increase<\/li>\n                            <li>Zero electrical degradation<\/li>\n                        <\/ul>\n                    <\/div>\n                    \n                    <div class=\"feature-card\">\n                        <h4 style=\"color: var(--accent);\">Water Quality Tolerance<\/h4>\n                        <p><strong>pH range:<\/strong> 5.5 &#8211; 9.0<\/p>\n                        <p><strong>Salinity:<\/strong> Up to 3000 ppm TDS<\/p>\n                        <p><strong>Contaminants tolerated:<\/strong><\/p>\n                        <ul style=\"margin-left: 1rem;\">\n                            <li>Chlorides: <500 ppm<\/li>\n                            <li>Sulfates: <200 ppm<\/li>\n                            <li>Hydrocarbons: Trace amounts<\/li>\n                        <\/ul>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n        \n        <section id=\"applications\">\n            <h2>Industrial Application Scenarios<\/h2>\n            \n            <div class=\"application-card\">\n                <h3>\ud83d\udd27 Submersible Pump Systems<\/h3>\n                <p>Primary application domain encompassing deep-well pumps, borehole pumps, and industrial sump pumps. The H07RN8-F excels in continuous duty cycles with frequent start-stop operations typical of level-controlled pumping systems.<\/p>\n                <ul style=\"margin-left: 2rem; margin-top: 1rem;\">\n                    <li><strong>Agricultural irrigation:<\/strong> Center pivot systems, drip irrigation pumps<\/li>\n                    <li><strong>Municipal water supply:<\/strong> Drinking water extraction, reservoir management<\/li>\n                    <li><strong>Industrial process water:<\/strong> Cooling tower makeup, process water circulation<\/li>\n                    <li><strong>Wastewater management:<\/strong> Lift stations, treatment plant pumps<\/li>\n                <\/ul>\n            <\/div>\n            \n            <div class=\"application-card\">\n                <h3>\u2693 Marine &#038; Offshore Applications<\/h3>\n                <p>Suitable for ballast pump systems, bilge pumps, and seawater cooling circuits where cable submersion is intermittent or continuous. The rubber construction resists marine growth and withstands dock\/harbor environments.<\/p>\n                <ul style=\"margin-left: 2rem; margin-top: 1rem;\">\n                    <li><strong>Ship systems:<\/strong> Ballast control, fire suppression pumps<\/li>\n                    <li><strong>Port facilities:<\/strong> Dock dewatering, tide gate operations<\/li>\n                    <li><strong>Offshore platforms:<\/strong> Seawater lift pumps, drilling mud pumps<\/li>\n                    <li><strong>Aquaculture:<\/strong> Aeration systems, circulation pumps<\/li>\n                <\/ul>\n            <\/div>\n            \n            <div class=\"application-card\">\n                <h3>\u26cf\ufe0f Mining &#038; Quarrying Operations<\/h3>\n                <p>Essential for mine dewatering systems where cables face aggressive water conditions with suspended solids and varying pH levels. The robust construction withstands mechanical stress from debris and sediment.<\/p>\n                <ul style=\"margin-left: 2rem; margin-top: 1rem;\">\n                    <li><strong>Open pit mining:<\/strong> Sump pump cables, dewatering systems<\/li>\n                    <li><strong>Underground mining:<\/strong> Shaft pumps, drainage galleries<\/li>\n                    <li><strong>Quarry operations:<\/strong> Aggregate washing, slurry pumps<\/li>\n                    <li><strong>Mineral processing:<\/strong> Tailings pond pumps, clarifier systems<\/li>\n                <\/ul>\n            <\/div>\n        <\/section>\n        \n        <section id=\"standards\">\n            <h2>International Standards Compliance &#038; Equivalents<\/h2>\n            \n            <h3>Primary Standards Conformity<\/h3>\n            \n            <table class=\"data-table\">\n                <thead>\n                    <tr>\n                        <th>Standard<\/th>\n                        <th>Description<\/th>\n                        <th>Key Requirements<\/th>\n                        <th>Compliance Level<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>DIN VDE 0282-1<\/td>\n                        <td>Rubber insulated cables &#8211; General<\/td>\n                        <td>Material properties, test methods<\/td>\n                        <td>Full compliance<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>DIN VDE 0282-16<\/td>\n                        <td>Submersible pump cables<\/td>\n                        <td>Water resistance, pressure testing<\/td>\n                        <td>Full compliance<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>HD 22.1<\/td>\n                        <td>Harmonized rubber cable standard<\/td>\n                        <td>Construction, dimensions<\/td>\n                        <td>Full compliance<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>HD 22.16 S1<\/td>\n                        <td>Specific submersible requirements<\/td>\n                        <td>Immersion testing, durability<\/td>\n                        <td>Full compliance<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>IEC 60228<\/td>\n                        <td>Conductors of insulated cables<\/td>\n                        <td>Class 5 flexibility requirements<\/td>\n                        <td>Exceeds requirements<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>IEC 60245-4<\/td>\n                        <td>Rubber insulated cables 450\/750V<\/td>\n                        <td>Electrical properties<\/td>\n                        <td>Reference standard<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n            \n            <h3>Regional Designation Equivalents<\/h3>\n            \n            <table class=\"data-table\">\n                <thead>\n                    <tr>\n                        <th>Country\/Region<\/th>\n                        <th>Local Designation<\/th>\n                        <th>Standard Reference<\/th>\n                        <th>Application Notes<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>Germany<\/td>\n                        <td>H07RN8-F<\/td>\n                        <td>VDE 0282-16<\/td>\n                        <td>Original designation<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>United Kingdom<\/td>\n                        <td>H07RN8-F \/ EPR-CSP<\/td>\n                        <td>BS 6007<\/td>\n                        <td>Equivalent EPR\/CSP cable<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>France<\/td>\n                        <td>H07RN8-F<\/td>\n                        <td>NF C32-102-16<\/td>\n                        <td>C\u00e2ble immergeable<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Italy<\/td>\n                        <td>FG7(O)R16<\/td>\n                        <td>CEI 20-19\/16<\/td>\n                        <td>Cavo per pompe sommerse<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Spain<\/td>\n                        <td>DN-F similar<\/td>\n                        <td>UNE 21027-16<\/td>\n                        <td>Cable sumergible<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Netherlands<\/td>\n                        <td>NSSHOU-O<\/td>\n                        <td>NEN 3634<\/td>\n                        <td>Dompelpomp kabel<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Poland<\/td>\n                        <td>OnGd3<\/td>\n                        <td>PN-87\/E-90060<\/td>\n                        <td>Pump cable designation<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>USA<\/td>\n                        <td>Type W (modified)<\/td>\n                        <td>UL 62 \/ ICEA S-75-381<\/td>\n                        <td>Requires additional listing<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Australia<\/td>\n                        <td>Submerible Flex<\/td>\n                        <td>AS\/NZS 5000.2<\/td>\n                        <td>Mining application focus<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/section>\n        \n        <section id=\"faq\">\n            <h2>Technical FAQ &#8211; Engineering Solutions<\/h2>\n            \n            <div class=\"faq-container\">\n                <div class=\"faq-box\">\n                    <div class=\"faq-q\">Q: What differentiates H07RN8-F from standard H07RN-F cables for wet locations?<\/div>\n                    <p>The H07RN8-F incorporates specialized compound formulations per VDE 0282-16 specifically for water immersion. Key differences include: enhanced water-blocking fillers between cores, upgraded EM2 sheath compound with superior hydrolytic stability, and mandatory inner sheath on configurations \u226510mm\u00b2 providing additional water barrier. The &#8220;8&#8221; designation indicates suitability for permanent submersion versus occasional wet exposure.<\/p>\n                <\/div>\n                \n                <div class=\"faq-box\">\n                    <div class=\"faq-q\">Q: How should cable glands be specified for submersible pump installations?<\/div>\n                    <p>Utilize polyamide or brass glands with NBR\/EPDM seals rated IP68 minimum. Gland sizing must account for cable OD tolerance (use maximum OD values). Apply recommended torque: 20mm gland = 5 Nm, 25mm = 7 Nm, 32mm = 10 Nm. Consider double compression glands for depths >5m. Always use thread sealant (PTFE tape or anaerobic compound) on gland threads.<\/p>\n                <\/div>\n                \n                <div class=\"faq-box\">\n                    <div class=\"faq-q\">Q: What are critical installation parameters for vertical pump drops?<\/div>\n                    <p>Maximum unsupported vertical drop: 50m for sizes \u226416mm\u00b2, 30m for larger sections. Use stainless steel cable clamps every 3-5m avoiding compression damage. Minimum bend radius at pump head: 10\u00d7OD for frequent removal, 6\u00d7OD for permanent installation. Allow 0.5m service loop at pump connection. Weight calculations must include water displacement effect.<\/p>\n                <\/div>\n                \n                <div class=\"faq-box\">\n                    <div class=\"faq-q\">Q: How does temperature affect current ratings in submerged applications?<\/div>\n                    <p>Submerged cables benefit from superior heat dissipation &#8211; apply 1.15 multiplication factor to air ratings for continuously submerged cables. However, derate by factors: 20\u00b0C water = 1.0, 30\u00b0C = 0.93, 40\u00b0C = 0.82. Note that partially submerged cables require analysis at worst-case (aerial) section.<\/p>\n                <\/div>\n                \n                <div class=\"faq-box\">\n                    <div class=\"faq-q\">Q: What maintenance testing should be performed on installed pump cables?<\/div>\n                    <p>Quarterly: Visual inspection of exposed sections, gland tightness verification. Annually: Insulation resistance testing (minimum 100 M\u03a9 at 500VDC), continuity testing (<1.5\u00d7 calculated resistance). Every 3 years: Partial discharge testing if >50m length. Document trending &#8211; 50% IR reduction indicates replacement planning required.<\/p>\n                <\/div>\n                \n                <div class=\"faq-box\">\n                    <div class=\"faq-q\">Q: Can H07RN8-F cables be repaired\/spliced underwater?<\/div>\n                    <p>Underwater splicing not recommended &#8211; cable should be lifted for repairs. If essential, use resin-filled splice kits rated IPX8 with heat-shrink\/cold-shrink technology. Splice housings must withstand operational pressure +50% safety margin. Consider replacement over splicing for critical applications as splices reduce reliability by approximately 30%.<\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n        \n        <section id=\"expert\">\n            <h2>Industry Expert Analysis<\/h2>\n            \n            <div class=\"author-section\">\n                <h3>Article Author: Liu Jianming (\u5218\u5efa\u660e)<\/h3>\n                <p><strong>Senior Subsea Cable Engineer | 18 Years Specialized Experience<\/strong><\/p>\n                \n                <p>Liu Jianming brings unparalleled expertise in submersible cable systems from diverse challenging environments including offshore drilling platforms in the North Sea, deep mine dewatering projects in South African gold mines reaching 3,000m depth, and major desalination plant installations across the Middle East.<\/p>\n                \n                <h4 style=\"color: var(--secondary); margin-top: 2rem;\">Professional Background:<\/h4>\n                <ul style=\"margin-left: 2rem; line-height: 1.8;\">\n                    <li>M.Sc. Electrical Engineering &#8211; Harbin Institute of Technology (2005)<\/li>\n                    <li>Certified Subsea Engineer &#8211; International Marine Contractors Association<\/li>\n                    <li>IEC TC18 Working Group Member &#8211; Marine Electrical Standards<\/li>\n                    <li>Former Lead Engineer &#8211; China National Offshore Oil Corporation (2008-2016)<\/li>\n                    <li>Published Author: &#8220;Submersible Cable Systems in Extreme Environments&#8221; (2020)<\/li>\n                    <li>Current Position: Chief Technical Specialist &#8211; Anhui Feichun Special Cable Co., Ltd.<\/li>\n                <\/ul>\n                \n                <h4 style=\"color: var(--secondary); margin-top: 2rem;\">Notable Project Contributions:<\/h4>\n                <p>Designed cable specifications for the world&#8217;s deepest mine dewatering system (TauTona Mine, 3.9km depth), achieving zero cable failures over 5 years operation. Led technical committee establishing Chinese national standards for submersible pump cables (GB\/T 12972.16). Pioneered adoption of predictive maintenance protocols using online partial discharge monitoring, reducing unplanned pump failures by 78% across managed installations.<\/p>\n                \n                <p style=\"margin-top: 2rem; font-style: italic; color: #ccc; border-left: 4px solid var(--primary); padding-left: 1rem;\">\n                    &#8220;The reliability of submersible pump systems fundamentally depends on cable integrity. The H07RN8-F represents decades of material science advancement, transforming what was once the weakest link into the most dependable component. In my experience across hundreds of installations, proper cable selection and installation protocol adherence determines whether a system operates for decades or fails within months.&#8221; &#8211; Liu Jianming\n                <\/p>\n            <\/div>\n        <\/section>\n        \n        <div class=\"contact-bar\">\n            <h3 style=\"color: white; margin-bottom: 1rem;\">Technical Support &#038; Procurement Inquiries<\/h3>\n            <p style=\"color: #ccc;\">Anhui Feichun Special Cable Co., Ltd.<\/p>\n            <p>\n                <a href=\"mailto:zihao.yang@feichuncables.com\">zihao.yang@feichuncables.com<\/a>\n                <a href=\"mailto:tech@feichuncables.com\">tech@feichuncables.com<\/a>\n                <a href=\"mailto:ziyu.huang@feichuncables.com\">ziyu.huang@feichuncables.com<\/a>\n            <\/p>\n            <p style=\"color: #999; margin-top: 1rem;\">ISO 9001:2015 | ISO 14001:2015 | ISO 45001:2018 Certified<\/p>\n        <\/div>\n    <\/main>\n    \n    <footer>\n        <p>\u00a9 2024 Anhui Feichun Special Cable Co., Ltd. All Rights Reserved.<\/p>\n        <p>Technical specifications subject to revision. Version 3.1.2 | Last Updated: September 2024<\/p>\n        <p>This document contains proprietary technical information. Distribution restricted to authorized personnel.<\/p>\n    <\/footer>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"H07RN8-F Submersib&hellip;","protected":false},"author":1,"featured_media":353,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"right","csco_page_header_type":"title","csco_page_load_nextpost":"","footnotes":""},"categories":[101,94],"tags":[104,16,103,105,102],"class_list":["post-351","post","type-post","status-publish","format-standard","has-post-thumbnail","category-submersible-pump-cable","category-din-vde-0250-mining-cable","tag-450-750v","tag-din-vde-0250","tag-h07rn8-f","tag-harmonized-rubber-cable-for-underwater-applications","tag-submersible-pump-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/351","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=351"}],"version-history":[{"count":1,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/351\/revisions"}],"predecessor-version":[{"id":354,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/351\/revisions\/354"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/353"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}