{"id":4965,"date":"2026-01-23T10:10:18","date_gmt":"2026-01-23T02:10:18","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=4965"},"modified":"2026-01-23T10:10:23","modified_gmt":"2026-01-23T02:10:23","slug":"insulation-thickness-what-is-the-difference-in-wall-thickness-requirements-for-3gi3-insulation-between-vde-0250-part-812-mobile-and-part-813-mining-cables","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/insulation-thickness-what-is-the-difference-in-wall-thickness-requirements-for-3gi3-insulation-between-vde-0250-part-812-mobile-and-part-813-mining-cables\/","title":{"rendered":"Insulation Thickness: What is the Difference in Wall Thickness Requirements for 3GI3 Insulation Between VDE 0250 Part 812 (Mobile) and Part 813 (Mining) Cables?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>\u7edd\u7f18\u539a\u5ea6\uff1aVDE 0250\u7b2c812\u90e8\u5206\uff08\u79fb\u52a8\u578b\uff09\u548c\u7b2c813\u90e8\u5206\uff08\u77ff\u7528\u578b\uff09\u7535\u7f06\u76843GI3\u7edd\u7f18\u58c1\u539a\u8981\u6c42\u6709\u4f55\u4e0d\u540c\uff1f<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"5b433b\" data-has-transparency=\"false\" style=\"--dominant-color: #5b433b;\" loading=\"lazy\" decoding=\"async\" width=\"991\" height=\"600\" sizes=\"auto, (max-width: 991px) 100vw, 991px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585.avif\" alt=\"\" class=\"wp-image-4966 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585.avif 991w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585-300x182.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585-768x465.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585-400x242.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585-800x484.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-585-832x504.avif 832w\" \/><\/figure>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <meta name=\"description\" content=\"Technical comparison of 3GI3 EPR insulation wall thickness requirements between VDE 0250 Part 812 (Mobile\/Low Voltage) and Part 813 (Mining\/Medium Voltage) cables. Comprehensive analysis by Anhui Feichun Special Cable Co., Ltd.\">\n    <meta name=\"keywords\" content=\"VDE 0250-812, VDE 0250-813, 3GI3 insulation, EPR insulation thickness, NSSH\u00d6U cable, mining cable, mobile cable, insulation wall thickness, DIN VDE 0207\">\n    <title>Insulation Thickness: VDE 0250 Part 812 vs Part 813 &#8211; 3GI3 EPR Wall Thickness Requirements | Anhui Feichun Special Cable<\/title>\n<\/head>\n<body>\n\n<article>\n    <header>\n        <h1>Insulation Thickness: What is the Difference in Wall Thickness Requirements for 3GI3 Insulation Between VDE 0250 Part 812 (Mobile) and Part 813 (Mining) Cables?<\/h1>\n        <p><em>\u7edd\u7f18\u539a\u5ea6\uff1aVDE 0250\u7b2c812\u90e8\u5206\uff08\u79fb\u52a8\u578b\uff09\u548c\u7b2c813\u90e8\u5206\uff08\u77ff\u7528\u578b\uff09\u7535\u7f06\u76843GI3\u7edd\u7f18\u58c1\u539a\u8981\u6c42\u6709\u4f55\u4e0d\u540c\uff1f<\/em><\/p>\n        \n        <p><strong>Technical Analysis by Anhui Feichun Special Cable Co., Ltd.<\/strong><br>\n        <em>\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8\u6280\u672f\u5206\u6790<\/em><\/p>\n    <\/header>\n\n    <nav>\n        <h2>Contents \u76ee\u5f55<\/h2>\n        <ul>\n            <li><a href=\"#introduction\">1. Introduction \u5f15\u8a00<\/a><\/li>\n            <li><a href=\"#standard-overview\">2. Standard Overview: VDE 0250-812 vs VDE 0250-813 \u6807\u51c6\u6982\u8ff0<\/a><\/li>\n            <li><a href=\"#3gi3-compound\">3. Understanding 3GI3 EPR Insulation Compound \u4e86\u89e33GI3 EPR\u7edd\u7f18\u5316\u5408\u7269<\/a><\/li>\n            <li><a href=\"#part812-requirements\">4. VDE 0250-812: Low Voltage Mobile Cable Requirements \u4f4e\u538b\u79fb\u52a8\u7535\u7f06\u8981\u6c42<\/a><\/li>\n            <li><a href=\"#part813-requirements\">5. VDE 0250-813: Medium Voltage Mining Cable Requirements \u4e2d\u538b\u77ff\u7528\u7535\u7f06\u8981\u6c42<\/a><\/li>\n            <li><a href=\"#thickness-comparison\">6. Insulation Thickness Comparison Tables \u7edd\u7f18\u539a\u5ea6\u5bf9\u6bd4\u8868<\/a><\/li>\n            <li><a href=\"#design-factors\">7. Factors Influencing Insulation Thickness Design \u5f71\u54cd\u7edd\u7f18\u539a\u5ea6\u8bbe\u8ba1\u7684\u56e0\u7d20<\/a><\/li>\n            <li><a href=\"#application-selection\">8. Application Selection Guide \u5e94\u7528\u9009\u62e9\u6307\u5357<\/a><\/li>\n            <li><a href=\"#testing-requirements\">9. Testing Requirements \u6d4b\u8bd5\u8981\u6c42<\/a><\/li>\n            <li><a href=\"#conclusion\">10. Conclusion \u7ed3\u8bba<\/a><\/li>\n            <li><a href=\"#contact\">11. Contact Information \u8054\u7cfb\u65b9\u5f0f<\/a><\/li>\n        <\/ul>\n    <\/nav>\n\n    <section id=\"introduction\">\n        <h2>1. Introduction \u5f15\u8a00<\/h2>\n        \n        <p>The DIN VDE 0250 standard series defines the technical requirements for rubber-insulated flexible cables used in demanding industrial environments. Within this framework, Part 812 and Part 813 address distinctly different application domains with correspondingly different insulation thickness requirements for the 3GI3 EPR (Ethylene Propylene Rubber) compound specified in DIN VDE 0207 Part 20.<\/p>\n        \n        <p><em>DIN VDE 0250\u6807\u51c6\u7cfb\u5217\u5b9a\u4e49\u4e86\u7528\u4e8e\u82db\u523b\u5de5\u4e1a\u73af\u5883\u7684\u6a61\u80f6\u7edd\u7f18\u67d4\u6027\u7535\u7f06\u7684\u6280\u672f\u8981\u6c42\u3002\u5728\u6b64\u6846\u67b6\u5185\uff0c\u7b2c812\u90e8\u5206\u548c\u7b2c813\u90e8\u5206\u9488\u5bf9\u622a\u7136\u4e0d\u540c\u7684\u5e94\u7528\u9886\u57df\uff0c\u5bf9DIN VDE 0207\u7b2c20\u90e8\u5206\u89c4\u5b9a\u76843GI3 EPR\uff08\u4e59\u4e19\u6a61\u80f6\uff09\u5316\u5408\u7269\u5177\u6709\u76f8\u5e94\u4e0d\u540c\u7684\u7edd\u7f18\u539a\u5ea6\u8981\u6c42\u3002<\/em><\/p>\n\n        <p>Understanding these differences is critical for engineers specifying cables for mobile equipment versus underground mining operations. The wall thickness requirements directly impact the cable&#8217;s dielectric strength, mechanical durability, and long-term reliability under the specific stresses encountered in each application environment.<\/p>\n        \n        <p><em>\u4e86\u89e3\u8fd9\u4e9b\u5dee\u5f02\u5bf9\u4e8e\u4e3a\u79fb\u52a8\u8bbe\u5907\u548c\u5730\u4e0b\u91c7\u77ff\u4f5c\u4e1a\u6307\u5b9a\u7535\u7f06\u7684\u5de5\u7a0b\u5e08\u81f3\u5173\u91cd\u8981\u3002\u58c1\u539a\u8981\u6c42\u76f4\u63a5\u5f71\u54cd\u7535\u7f06\u7684\u4ecb\u7535\u5f3a\u5ea6\u3001\u673a\u68b0\u8010\u4e45\u6027\u4ee5\u53ca\u5728\u6bcf\u79cd\u5e94\u7528\u73af\u5883\u4e2d\u9047\u5230\u7684\u7279\u5b9a\u5e94\u529b\u4e0b\u7684\u957f\u671f\u53ef\u9760\u6027\u3002<\/em><\/p>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/tratosgroup.com\/products\/standards\/others\/din-vde-0250-part-812\/\" rel=\"nofollow noopener\" target=\"_blank\">Tratos Group &#8211; DIN VDE 0250 Part 812 Standard Overview<\/a><\/li>\n            <li><a href=\"https:\/\/tratosgroup.com\/products\/standards\/others\/din-vde-250-part-813\/\" rel=\"nofollow noopener\" target=\"_blank\">Tratos Group &#8211; DIN VDE 0250 Part 813 Standard Overview<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"standard-overview\">\n        <h2>2. Standard Overview: VDE 0250-812 vs VDE 0250-813 \u6807\u51c6\u6982\u8ff0<\/h2>\n        \n        <p>The fundamental distinction between these two standards lies in their voltage ratings and intended application environments. VDE 0250-812 addresses low voltage flexible cables for general industrial mobile applications, while VDE 0250-813 covers medium voltage trailing cables specifically designed for the extreme conditions encountered in mining operations.<\/p>\n        \n        <p><em>\u8fd9\u4e24\u4e2a\u6807\u51c6\u4e4b\u95f4\u7684\u6839\u672c\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u7684\u7535\u538b\u7b49\u7ea7\u548c\u9884\u671f\u5e94\u7528\u73af\u5883\u3002VDE 0250-812\u9488\u5bf9\u4e00\u822c\u5de5\u4e1a\u79fb\u52a8\u5e94\u7528\u7684\u4f4e\u538b\u67d4\u6027\u7535\u7f06\uff0c\u800cVDE 0250-813\u5219\u6db5\u76d6\u4e13\u95e8\u4e3a\u91c7\u77ff\u4f5c\u4e1a\u4e2d\u9047\u5230\u7684\u6781\u7aef\u6761\u4ef6\u8bbe\u8ba1\u7684\u4e2d\u538b\u62d6\u66f3\u7535\u7f06\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 1: Fundamental Standard Comparison<\/strong><br><em>\u88681\uff1a\u57fa\u672c\u6807\u51c6\u6bd4\u8f83<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Parameter<br><em>\u53c2\u6570<\/em><\/th>\n                    <th>VDE 0250-812<br><em>VDE 0250-812<\/em><\/th>\n                    <th>VDE 0250-813<br><em>VDE 0250-813<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Full Title<br><em>\u5b8c\u6574\u6807\u9898<\/em><\/td>\n                    <td>Rubber insulated flexible cable NSSH\u00d6U<\/td>\n                    <td>Medium voltage trailing cables for mining<\/td>\n                <\/tr>\n                <tr>\n                    <td>Voltage Rating U\u2080\/U<br><em>\u989d\u5b9a\u7535\u538b<\/em><\/td>\n                    <td>450\/750V (up to 0.6\/1kV)<\/td>\n                    <td>3.6\/6kV to 18\/30kV<\/td>\n                <\/tr>\n                <tr>\n                    <td>Cable Designation<br><em>\u7535\u7f06\u540d\u79f0<\/em><\/td>\n                    <td>NSSH\u00d6U, (N)SH\u00d6U<\/td>\n                    <td>(N)TSCGEW\u00d6U, (N)TSCGECEW\u00d6U<\/td>\n                <\/tr>\n                <tr>\n                    <td>Primary Application<br><em>\u4e3b\u8981\u5e94\u7528<\/em><\/td>\n                    <td>Mobile equipment, construction, industrial<\/td>\n                    <td>Underground mining, open-pit mining, tunnelling<\/td>\n                <\/tr>\n                <tr>\n                    <td>Insulation Compound<br><em>\u7edd\u7f18\u5316\u5408\u7269<\/em><\/td>\n                    <td>3GI3 EPR per DIN VDE 0207-20<\/td>\n                    <td>3GI3 EPR per DIN VDE 0207-20<\/td>\n                <\/tr>\n                <tr>\n                    <td>Conductor Class<br><em>\u5bfc\u4f53\u7b49\u7ea7<\/em><\/td>\n                    <td>Class 5 (flexible)<\/td>\n                    <td>Class 5\/6 (highly flexible)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Operating Temperature<br><em>\u5de5\u4f5c\u6e29\u5ea6<\/em><\/td>\n                    <td>-25\u00b0C to +90\u00b0C<\/td>\n                    <td>-25\u00b0C to +90\u00b0C<\/td>\n                <\/tr>\n                <tr>\n                    <td>Semiconductive Screening<br><em>\u534a\u5bfc\u7535\u5c4f\u853d<\/em><\/td>\n                    <td>Not required (LV)<\/td>\n                    <td>Required (conductor and insulation screen)<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/www.vde-verlag.de\/standards\/0250028\/din-vde-0250-812-vde-0250-812-1985-05.html\" rel=\"nofollow noopener\" target=\"_blank\">VDE Verlag &#8211; DIN VDE 0250-812 Standard<\/a><\/li>\n            <li><a href=\"https:\/\/feichuncables.com\/blog\/what-is-din-vde-0250-reeling-cables\/\" rel=\"nofollow\" target=\"_blank\">Feichun Cables &#8211; DIN VDE 0250 Reeling Cables Technical Guide<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"3gi3-compound\">\n        <h2>3. Understanding 3GI3 EPR Insulation Compound \u4e86\u89e33GI3 EPR\u7edd\u7f18\u5316\u5408\u7269<\/h2>\n        \n        <p>The 3GI3 designation refers to a specific grade of ethylene propylene rubber (EPR) compound defined in DIN VDE 0207 Part 20. This compound is specified for both Part 812 and Part 813 cables, but the wall thickness requirements differ significantly due to the vastly different voltage stresses and mechanical demands of each application.<\/p>\n        \n        <p><em>3GI3\u540d\u79f0\u6307\u7684\u662fDIN VDE 0207\u7b2c20\u90e8\u5206\u4e2d\u5b9a\u4e49\u7684\u7279\u5b9a\u7b49\u7ea7\u4e59\u4e19\u6a61\u80f6\uff08EPR\uff09\u5316\u5408\u7269\u3002\u8be5\u5316\u5408\u7269\u540c\u65f6\u9002\u7528\u4e8e\u7b2c812\u90e8\u5206\u548c\u7b2c813\u90e8\u5206\u7535\u7f06\uff0c\u4f46\u7531\u4e8e\u6bcf\u79cd\u5e94\u7528\u7684\u7535\u538b\u5e94\u529b\u548c\u673a\u68b0\u8981\u6c42\u622a\u7136\u4e0d\u540c\uff0c\u58c1\u539a\u8981\u6c42\u5b58\u5728\u663e\u8457\u5dee\u5f02\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 2: 3GI3 EPR Compound Properties per DIN VDE 0207-20<\/strong><br><em>\u88682\uff1aDIN VDE 0207-20\u89c4\u5b9a\u76843GI3 EPR\u5316\u5408\u7269\u6027\u80fd<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Property<br><em>\u6027\u80fd<\/em><\/th>\n                    <th>Requirement<br><em>\u8981\u6c42<\/em><\/th>\n                    <th>Test Method<br><em>\u6d4b\u8bd5\u65b9\u6cd5<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Tensile Strength (min.)<br><em>\u62c9\u4f38\u5f3a\u5ea6\uff08\u6700\u5c0f\uff09<\/em><\/td>\n                    <td>\u22655 N\/mm\u00b2<\/td>\n                    <td>DIN VDE 0472<\/td>\n                <\/tr>\n                <tr>\n                    <td>Elongation at Break (min.)<br><em>\u65ad\u88c2\u4f38\u957f\u7387\uff08\u6700\u5c0f\uff09<\/em><\/td>\n                    <td>\u2265200%<\/td>\n                    <td>DIN VDE 0472<\/td>\n                <\/tr>\n                <tr>\n                    <td>Maximum Operating Temperature<br><em>\u6700\u9ad8\u5de5\u4f5c\u6e29\u5ea6<\/em><\/td>\n                    <td>90\u00b0C<\/td>\n                    <td>DIN VDE 0207-20<\/td>\n                <\/tr>\n                <tr>\n                    <td>Short-Circuit Temperature<br><em>\u77ed\u8def\u6e29\u5ea6<\/em><\/td>\n                    <td>250\u00b0C<\/td>\n                    <td>DIN VDE 0207-20<\/td>\n                <\/tr>\n                <tr>\n                    <td>Volume Resistivity (min.)<br><em>\u4f53\u79ef\u7535\u963b\u7387\uff08\u6700\u5c0f\uff09<\/em><\/td>\n                    <td>\u226510\u00b9\u00b2 \u03a9\u00b7cm<\/td>\n                    <td>DIN VDE 0472<\/td>\n                <\/tr>\n                <tr>\n                    <td>Ozone Resistance<br><em>\u8010\u81ed\u6c27\u6027<\/em><\/td>\n                    <td>No cracking after 72h<\/td>\n                    <td>DIN EN 60811-403<\/td>\n                <\/tr>\n                <tr>\n                    <td>Oil Resistance<br><em>\u8010\u6cb9\u6027<\/em><\/td>\n                    <td>Per DIN VDE 0473-811-2-1<\/td>\n                    <td>DIN EN 60811-404<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>The 3GI3 compound designation follows the VDE nomenclature where &#8220;3&#8221; indicates a rubber-based compound, &#8220;G&#8221; denotes general purpose application, &#8220;I&#8221; signifies insulation compound, and the final &#8220;3&#8221; represents the specific formulation grade with enhanced mechanical and electrical characteristics suitable for flexible cable applications.<\/p>\n        \n        <p><em>3GI3\u5316\u5408\u7269\u540d\u79f0\u9075\u5faaVDE\u547d\u540d\u6cd5\uff0c\u5176\u4e2d&#8221;3&#8243;\u8868\u793a\u57fa\u4e8e\u6a61\u80f6\u7684\u5316\u5408\u7269\uff0c&#8221;G&#8221;\u8868\u793a\u901a\u7528\u5e94\u7528\uff0c&#8221;I&#8221;\u8868\u793a\u7edd\u7f18\u5316\u5408\u7269\uff0c\u6700\u540e\u7684&#8221;3&#8243;\u4ee3\u8868\u5177\u6709\u589e\u5f3a\u673a\u68b0\u548c\u7535\u6c14\u7279\u6027\u7684\u7279\u5b9a\u914d\u65b9\u7b49\u7ea7\uff0c\u9002\u7528\u4e8e\u67d4\u6027\u7535\u7f06\u5e94\u7528\u3002<\/em><\/p>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/www.prysmian.com\/sites\/default\/files\/business_markets\/markets\/downloads\/datasheets\/Medium-Voltage-Round.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Prysmian &#8211; PROTOLON Medium Voltage Reeling Cables (3GI3 specifications)<\/a><\/li>\n            <li><a href=\"https:\/\/www.powerandcables.com\/wp-content\/uploads\/2017\/07\/Mining-Cables-T-F-Kable-Catalogue.pdf\" rel=\"nofollow noopener\" target=\"_blank\">T&#038;F Kable &#8211; Mining Cables Technical Catalogue<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"part812-requirements\">\n        <h2>4. VDE 0250-812: Low Voltage Mobile Cable Requirements \u4f4e\u538b\u79fb\u52a8\u7535\u7f06\u8981\u6c42<\/h2>\n        \n        <p>DIN VDE 0250-812 specifies requirements for EPR insulated and EPR or polychloroprene sheathed flexible cables with rated voltages up to and including 450\/750V. The typical cable designation under this standard is NSSH\u00d6U (Neopren-Schlauchleitung Schwer H\u00f6chste \u00d6lfestigkeit Ummantelung), indicating a heavy-duty, oil-resistant, rubber-sheathed cable.<\/p>\n        \n        <p><em>DIN VDE 0250-812\u89c4\u5b9a\u4e86\u989d\u5b9a\u7535\u538b\u4e0d\u8d85\u8fc7450\/750V\u7684EPR\u7edd\u7f18\u548cEPR\u6216\u805a\u6c2f\u4e01\u4e8c\u70ef\u62a4\u5957\u67d4\u6027\u7535\u7f06\u7684\u8981\u6c42\u3002\u8be5\u6807\u51c6\u4e0b\u7684\u5178\u578b\u7535\u7f06\u540d\u79f0\u4e3aNSSH\u00d6U\uff08Neopren-Schlauchleitung Schwer H\u00f6chste \u00d6lfestigkeit Ummantelung\uff09\uff0c\u8868\u793a\u91cd\u578b\u3001\u8010\u6cb9\u3001\u6a61\u80f6\u62a4\u5957\u7535\u7f06\u3002<\/em><\/p>\n\n        <h3>4.1 Insulation Thickness Requirements for VDE 0250-812 VDE 0250-812\u7684\u7edd\u7f18\u539a\u5ea6\u8981\u6c42<\/h3>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 3: VDE 0250-812 (NSSH\u00d6U) Insulation Wall Thickness<\/strong><br><em>\u88683\uff1aVDE 0250-812\uff08NSSH\u00d6U\uff09\u7edd\u7f18\u58c1\u539a<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Conductor Size (mm\u00b2)<br><em>\u5bfc\u4f53\u5c3a\u5bf8<\/em><\/th>\n                    <th>Nominal Insulation Thickness (mm)<br><em>\u6807\u79f0\u7edd\u7f18\u539a\u5ea6<\/em><\/th>\n                    <th>Minimum Insulation Thickness (mm)<br><em>\u6700\u5c0f\u7edd\u7f18\u539a\u5ea6<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>1.5<\/td>\n                    <td>1.0<\/td>\n                    <td>0.9<\/td>\n                <\/tr>\n                <tr>\n                    <td>2.5<\/td>\n                    <td>1.0<\/td>\n                    <td>0.9<\/td>\n                <\/tr>\n                <tr>\n                    <td>4<\/td>\n                    <td>1.0<\/td>\n                    <td>0.9<\/td>\n                <\/tr>\n                <tr>\n                    <td>6<\/td>\n                    <td>1.0<\/td>\n                    <td>0.9<\/td>\n                <\/tr>\n                <tr>\n                    <td>10<\/td>\n                    <td>1.0<\/td>\n                    <td>0.9<\/td>\n                <\/tr>\n                <tr>\n                    <td>16<\/td>\n                    <td>1.0<\/td>\n                    <td>0.9<\/td>\n                <\/tr>\n                <tr>\n                    <td>25<\/td>\n                    <td>1.2<\/td>\n                    <td>1.1<\/td>\n                <\/tr>\n                <tr>\n                    <td>35<\/td>\n                    <td>1.2<\/td>\n                    <td>1.1<\/td>\n                <\/tr>\n                <tr>\n                    <td>50<\/td>\n                    <td>1.4<\/td>\n                    <td>1.3<\/td>\n                <\/tr>\n                <tr>\n                    <td>70<\/td>\n                    <td>1.4<\/td>\n                    <td>1.3<\/td>\n                <\/tr>\n                <tr>\n                    <td>95<\/td>\n                    <td>1.6<\/td>\n                    <td>1.4<\/td>\n                <\/tr>\n                <tr>\n                    <td>120<\/td>\n                    <td>1.6<\/td>\n                    <td>1.4<\/td>\n                <\/tr>\n                <tr>\n                    <td>150<\/td>\n                    <td>1.8<\/td>\n                    <td>1.6<\/td>\n                <\/tr>\n                <tr>\n                    <td>185<\/td>\n                    <td>2.0<\/td>\n                    <td>1.8<\/td>\n                <\/tr>\n                <tr>\n                    <td>240<\/td>\n                    <td>2.2<\/td>\n                    <td>2.0<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>The insulation thickness values for VDE 0250-812 are designed to provide adequate dielectric strength for 450\/750V operation while maintaining the flexibility required for mobile applications. The relatively thin insulation walls (1.0-2.2mm nominal) reflect the lower voltage stress compared to medium voltage applications.<\/p>\n        \n        <p><em>VDE 0250-812\u7684\u7edd\u7f18\u539a\u5ea6\u503c\u65e8\u5728\u4e3a450\/750V\u8fd0\u884c\u63d0\u4f9b\u8db3\u591f\u7684\u4ecb\u7535\u5f3a\u5ea6\uff0c\u540c\u65f6\u4fdd\u6301\u79fb\u52a8\u5e94\u7528\u6240\u9700\u7684\u67d4\u97e7\u6027\u3002\u76f8\u5bf9\u8f83\u8584\u7684\u7edd\u7f18\u58c1\uff08\u6807\u79f01.0-2.2mm\uff09\u53cd\u6620\u4e86\u4e0e\u4e2d\u538b\u5e94\u7528\u76f8\u6bd4\u8f83\u4f4e\u7684\u7535\u538b\u5e94\u529b\u3002<\/em><\/p>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/www.baoliyy.com\/vde-0250-part-812-nsshoeu-o-j-0-6-1kv-heavy-duty-flexible-cable-2\/\" rel=\"nofollow noopener\" target=\"_blank\">JYTOP Cable &#8211; VDE 0250 Part 812 NSSH\u00d6U Technical Specifications<\/a><\/li>\n            <li><a href=\"http:\/\/www.ddacables.com\/katalog\/07_nsshou.php\" rel=\"nofollow noopener\" target=\"_blank\">DDA Cables &#8211; NSSH\u00d6U Rubber Flexible Cables<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"part813-requirements\">\n        <h2>5. VDE 0250-813: Medium Voltage Mining Cable Requirements \u4e2d\u538b\u77ff\u7528\u7535\u7f06\u8981\u6c42<\/h2>\n        \n        <p>DIN VDE 0250-813 specifies requirements for medium voltage trailing cables with rated voltages from 3.6\/6kV to 18\/30kV, specifically designed for the demanding conditions of open-pit mining, underground mining, and tunnelling operations. These cables must withstand significantly higher voltage stress, requiring substantially thicker insulation walls compared to Part 812 cables.<\/p>\n        \n        <p><em>DIN VDE 0250-813\u89c4\u5b9a\u4e86\u989d\u5b9a\u7535\u538b\u4ece3.6\/6kV\u523018\/30kV\u7684\u4e2d\u538b\u62d6\u66f3\u7535\u7f06\u7684\u8981\u6c42\uff0c\u4e13\u95e8\u4e3a\u9732\u5929\u91c7\u77ff\u3001\u5730\u4e0b\u91c7\u77ff\u548c\u96a7\u9053\u4f5c\u4e1a\u7684\u82db\u523b\u6761\u4ef6\u8bbe\u8ba1\u3002\u8fd9\u4e9b\u7535\u7f06\u5fc5\u987b\u627f\u53d7\u663e\u8457\u66f4\u9ad8\u7684\u7535\u538b\u5e94\u529b\uff0c\u4e0e\u7b2c812\u90e8\u5206\u7535\u7f06\u76f8\u6bd4\u9700\u8981\u660e\u663e\u66f4\u539a\u7684\u7edd\u7f18\u58c1\u3002<\/em><\/p>\n\n        <h3>5.1 Insulation Thickness Requirements for VDE 0250-813 VDE 0250-813\u7684\u7edd\u7f18\u539a\u5ea6\u8981\u6c42<\/h3>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 4: VDE 0250-813 Medium Voltage Cable Insulation Thickness by Voltage Rating<\/strong><br><em>\u88684\uff1aVDE 0250-813\u4e2d\u538b\u7535\u7f06\u6309\u7535\u538b\u7b49\u7ea7\u7684\u7edd\u7f18\u539a\u5ea6<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Voltage Rating U\u2080\/U (kV)<br><em>\u989d\u5b9a\u7535\u538b<\/em><\/th>\n                    <th>Nominal Insulation Thickness (mm)<br><em>\u6807\u79f0\u7edd\u7f18\u539a\u5ea6<\/em><\/th>\n                    <th>Minimum Insulation Thickness (mm)<br><em>\u6700\u5c0f\u7edd\u7f18\u539a\u5ea6<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>1.8\/3 kV<\/td>\n                    <td>3.4<\/td>\n                    <td>3.1<\/td>\n                <\/tr>\n                <tr>\n                    <td>3.6\/6 kV<\/td>\n                    <td>3.4<\/td>\n                    <td>3.1<\/td>\n                <\/tr>\n                <tr>\n                    <td>6\/10 kV<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                <\/tr>\n                <tr>\n                    <td>8.7\/15 kV<\/td>\n                    <td>5.5<\/td>\n                    <td>5.0<\/td>\n                <\/tr>\n                <tr>\n                    <td>12\/20 kV<\/td>\n                    <td>6.6<\/td>\n                    <td>6.0<\/td>\n                <\/tr>\n                <tr>\n                    <td>18\/30 kV<\/td>\n                    <td>8.0<\/td>\n                    <td>7.2<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <h3>5.2 Additional Construction Requirements \u9644\u52a0\u7ed3\u6784\u8981\u6c42<\/h3>\n        \n        <p>Unlike Part 812 low voltage cables, VDE 0250-813 medium voltage cables require additional semiconductive layers for electric field control. These layers are critical for preventing electrical stress concentrations that could lead to premature insulation failure.<\/p>\n        \n        <p><em>\u4e0e\u7b2c812\u90e8\u5206\u4f4e\u538b\u7535\u7f06\u4e0d\u540c\uff0cVDE 0250-813\u4e2d\u538b\u7535\u7f06\u9700\u8981\u989d\u5916\u7684\u534a\u5bfc\u7535\u5c42\u8fdb\u884c\u7535\u573a\u63a7\u5236\u3002\u8fd9\u4e9b\u5c42\u5bf9\u4e8e\u9632\u6b62\u53ef\u80fd\u5bfc\u81f4\u7edd\u7f18\u8fc7\u65e9\u5931\u6548\u7684\u7535\u5e94\u529b\u96c6\u4e2d\u81f3\u5173\u91cd\u8981\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 5: VDE 0250-813 Semiconductive Layer Requirements<\/strong><br><em>\u88685\uff1aVDE 0250-813\u534a\u5bfc\u7535\u5c42\u8981\u6c42<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Layer<br><em>\u5c42<\/em><\/th>\n                    <th>Specification<br><em>\u89c4\u683c<\/em><\/th>\n                    <th>Function<br><em>\u529f\u80fd<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Conductor Screen<br><em>\u5bfc\u4f53\u5c4f\u853d<\/em><\/td>\n                    <td>Extruded semiconductive EPR, max. resistivity 200 \u03a9\u00d7m<\/td>\n                    <td>Uniform electric field at conductor surface<\/td>\n                <\/tr>\n                <tr>\n                    <td>Insulation Screen<br><em>\u7edd\u7f18\u5c4f\u853d<\/em><\/td>\n                    <td>Modified NBR, cold strippable (Easy Strip)<\/td>\n                    <td>Uniform electric field at insulation surface<\/td>\n                <\/tr>\n                <tr>\n                    <td>Metallic Screen<br><em>\u91d1\u5c5e\u5c4f\u853d<\/em><\/td>\n                    <td>Tinned copper wire braid or tape<\/td>\n                    <td>Earth fault current path, EMC shielding<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/www.incore-cables.com\/wp-content\/uploads\/2018\/12\/Datasheet-NTSCGEWOEU.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Incore Cables &#8211; (N)TSCGEW\u00d6U Medium Voltage Mining Cable Datasheet<\/a><\/li>\n            <li><a href=\"https:\/\/www.prysmian.com\/sites\/default\/files\/business_markets\/markets\/downloads\/datasheets\/Medium-Voltage-Round.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Prysmian &#8211; PROTOLON Medium Voltage Reeling Cables<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"thickness-comparison\">\n        <h2>6. Insulation Thickness Comparison Tables \u7edd\u7f18\u539a\u5ea6\u5bf9\u6bd4\u8868<\/h2>\n        \n        <p>The following comprehensive comparison illustrates the significant differences in insulation wall thickness requirements between VDE 0250-812 (low voltage mobile) and VDE 0250-813 (medium voltage mining) cables. These differences reflect the fundamentally different electrical and mechanical requirements of each application.<\/p>\n        \n        <p><em>\u4ee5\u4e0b\u7efc\u5408\u6bd4\u8f83\u8bf4\u660e\u4e86VDE 0250-812\uff08\u4f4e\u538b\u79fb\u52a8\u578b\uff09\u548cVDE 0250-813\uff08\u4e2d\u538b\u77ff\u7528\u578b\uff09\u7535\u7f06\u4e4b\u95f4\u7edd\u7f18\u58c1\u539a\u8981\u6c42\u7684\u663e\u8457\u5dee\u5f02\u3002\u8fd9\u4e9b\u5dee\u5f02\u53cd\u6620\u4e86\u6bcf\u79cd\u5e94\u7528\u5728\u7535\u6c14\u548c\u673a\u68b0\u65b9\u9762\u6839\u672c\u4e0d\u540c\u7684\u8981\u6c42\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 6: Direct Comparison &#8211; 3GI3 EPR Insulation Thickness (VDE 0250-812 vs VDE 0250-813)<\/strong><br><em>\u88686\uff1a\u76f4\u63a5\u6bd4\u8f83 &#8211; 3GI3 EPR\u7edd\u7f18\u539a\u5ea6\uff08VDE 0250-812\u5bf9\u6bd4VDE 0250-813\uff09<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th rowspan=\"2\">Conductor Size (mm\u00b2)<br><em>\u5bfc\u4f53\u5c3a\u5bf8<\/em><\/th>\n                    <th colspan=\"2\">VDE 0250-812 (450\/750V)<br><em>VDE 0250-812<\/em><\/th>\n                    <th colspan=\"2\">VDE 0250-813 (6\/10kV)<br><em>VDE 0250-813<\/em><\/th>\n                    <th rowspan=\"2\">Thickness Ratio<br><em>\u539a\u5ea6\u6bd4<\/em><\/th>\n                <\/tr>\n                <tr>\n                    <th>Nominal (mm)<\/th>\n                    <th>Min. (mm)<\/th>\n                    <th>Nominal (mm)<\/th>\n                    <th>Min. (mm)<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>25<\/td>\n                    <td>1.2<\/td>\n                    <td>1.1<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>3.75\u00d7<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>35<\/td>\n                    <td>1.2<\/td>\n                    <td>1.1<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>3.75\u00d7<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>50<\/td>\n                    <td>1.4<\/td>\n                    <td>1.3<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>3.21\u00d7<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>70<\/td>\n                    <td>1.4<\/td>\n                    <td>1.3<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>3.21\u00d7<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>95<\/td>\n                    <td>1.6<\/td>\n                    <td>1.4<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>2.81\u00d7<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>120<\/td>\n                    <td>1.6<\/td>\n                    <td>1.4<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>2.81\u00d7<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>150<\/td>\n                    <td>1.8<\/td>\n                    <td>1.6<\/td>\n                    <td>4.5<\/td>\n                    <td>4.1<\/td>\n                    <td><strong>2.50\u00d7<\/strong><\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <h3>6.1 Key Observations \u4e3b\u8981\u89c2\u5bdf<\/h3>\n        \n        <p>The comparison reveals several critical insights regarding insulation thickness requirements between the two standards. First, the VDE 0250-813 medium voltage mining cables require approximately 2.5 to 3.75 times thicker insulation compared to VDE 0250-812 low voltage mobile cables for the same conductor cross-section. Second, VDE 0250-813 insulation thickness is constant across all conductor sizes for a given voltage rating, as the dielectric stress is voltage-dependent rather than current-dependent. Third, VDE 0250-812 insulation thickness increases progressively with conductor size to maintain adequate mechanical protection during handling.<\/p>\n        \n        <p><em>\u6bd4\u8f83\u63ed\u793a\u4e86\u5173\u4e8e\u4e24\u4e2a\u6807\u51c6\u4e4b\u95f4\u7edd\u7f18\u539a\u5ea6\u8981\u6c42\u7684\u51e0\u4e2a\u5173\u952e\u89c1\u89e3\u3002\u9996\u5148\uff0c\u5bf9\u4e8e\u76f8\u540c\u5bfc\u4f53\u6a2a\u622a\u9762\uff0cVDE 0250-813\u4e2d\u538b\u77ff\u7528\u7535\u7f06\u9700\u8981\u6bd4VDE 0250-812\u4f4e\u538b\u79fb\u52a8\u7535\u7f06\u539a\u7ea62.5\u81f33.75\u500d\u7684\u7edd\u7f18\u3002\u5176\u6b21\uff0c\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u7535\u538b\u7b49\u7ea7\uff0cVDE 0250-813\u7684\u7edd\u7f18\u539a\u5ea6\u5728\u6240\u6709\u5bfc\u4f53\u5c3a\u5bf8\u4e0a\u4fdd\u6301\u6052\u5b9a\uff0c\u56e0\u4e3a\u4ecb\u7535\u5e94\u529b\u53d6\u51b3\u4e8e\u7535\u538b\u800c\u975e\u7535\u6d41\u3002\u7b2c\u4e09\uff0cVDE 0250-812\u7684\u7edd\u7f18\u539a\u5ea6\u968f\u5bfc\u4f53\u5c3a\u5bf8\u9010\u6e10\u589e\u52a0\uff0c\u4ee5\u5728\u5904\u7406\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u8db3\u591f\u7684\u673a\u68b0\u4fdd\u62a4\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 7: VDE 0250-813 Insulation Thickness Across Voltage Ratings<\/strong><br><em>\u88687\uff1aVDE 0250-813\u4e0d\u540c\u7535\u538b\u7b49\u7ea7\u7684\u7edd\u7f18\u539a\u5ea6<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Voltage Rating<br><em>\u7535\u538b\u7b49\u7ea7<\/em><\/th>\n                    <th>Nominal Thickness (mm)<br><em>\u6807\u79f0\u539a\u5ea6<\/em><\/th>\n                    <th>Increase from Previous<br><em>\u6bd4\u524d\u4e00\u7ea7\u589e\u52a0<\/em><\/th>\n                    <th>Voltage Increase<br><em>\u7535\u538b\u589e\u52a0<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>3.6\/6 kV<\/td>\n                    <td>3.4<\/td>\n                    <td>Baseline<\/td>\n                    <td>Baseline<\/td>\n                <\/tr>\n                <tr>\n                    <td>6\/10 kV<\/td>\n                    <td>4.5<\/td>\n                    <td>+1.1 mm (+32%)<\/td>\n                    <td>+67%<\/td>\n                <\/tr>\n                <tr>\n                    <td>8.7\/15 kV<\/td>\n                    <td>5.5<\/td>\n                    <td>+1.0 mm (+22%)<\/td>\n                    <td>+50%<\/td>\n                <\/tr>\n                <tr>\n                    <td>12\/20 kV<\/td>\n                    <td>6.6<\/td>\n                    <td>+1.1 mm (+20%)<\/td>\n                    <td>+33%<\/td>\n                <\/tr>\n                <tr>\n                    <td>18\/30 kV<\/td>\n                    <td>8.0<\/td>\n                    <td>+1.4 mm (+21%)<\/td>\n                    <td>+50%<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/section>\n\n    <section id=\"design-factors\">\n        <h2>7. Factors Influencing Insulation Thickness Design \u5f71\u54cd\u7edd\u7f18\u539a\u5ea6\u8bbe\u8ba1\u7684\u56e0\u7d20<\/h2>\n        \n        <p>The significant differences in insulation thickness requirements between VDE 0250-812 and VDE 0250-813 are driven by multiple technical factors that directly relate to the intended operating conditions of each cable type.<\/p>\n        \n        <p><em>VDE 0250-812\u548cVDE 0250-813\u4e4b\u95f4\u7edd\u7f18\u539a\u5ea6\u8981\u6c42\u7684\u663e\u8457\u5dee\u5f02\u662f\u7531\u591a\u4e2a\u6280\u672f\u56e0\u7d20\u9a71\u52a8\u7684\uff0c\u8fd9\u4e9b\u56e0\u7d20\u76f4\u63a5\u4e0e\u6bcf\u79cd\u7535\u7f06\u7c7b\u578b\u7684\u9884\u671f\u8fd0\u884c\u6761\u4ef6\u76f8\u5173\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 8: Design Factors Influencing Insulation Thickness<\/strong><br><em>\u88688\uff1a\u5f71\u54cd\u7edd\u7f18\u539a\u5ea6\u7684\u8bbe\u8ba1\u56e0\u7d20<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Factor<br><em>\u56e0\u7d20<\/em><\/th>\n                    <th>VDE 0250-812 (Low Voltage)<br><em>VDE 0250-812\uff08\u4f4e\u538b\uff09<\/em><\/th>\n                    <th>VDE 0250-813 (Medium Voltage)<br><em>VDE 0250-813\uff08\u4e2d\u538b\uff09<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Dielectric Stress<br><em>\u4ecb\u7535\u5e94\u529b<\/em><\/td>\n                    <td>Low (\u22641 kV\/mm)<\/td>\n                    <td>High (2-4 kV\/mm)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Partial Discharge Risk<br><em>\u5c40\u90e8\u653e\u7535\u98ce\u9669<\/em><\/td>\n                    <td>Minimal at LV levels<\/td>\n                    <td>Critical &#8211; requires semiconductive screening<\/td>\n                <\/tr>\n                <tr>\n                    <td>Test Voltage<br><em>\u6d4b\u8bd5\u7535\u538b<\/em><\/td>\n                    <td>3 kV AC (5 min)<\/td>\n                    <td>2.5\u00d7U\u2080 + 2 kV AC (medium voltage)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Mechanical Stress<br><em>\u673a\u68b0\u5e94\u529b<\/em><\/td>\n                    <td>Moderate (general industrial)<\/td>\n                    <td>Severe (mining environment)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Abrasion Exposure<br><em>\u78e8\u635f\u66b4\u9732<\/em><\/td>\n                    <td>Moderate<\/td>\n                    <td>Extreme (rock, ore, equipment)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Tensile Load<br><em>\u62c9\u4f38\u8d1f\u8f7d<\/em><\/td>\n                    <td>Up to 15 N\/mm\u00b2<\/td>\n                    <td>Up to 30 N\/mm\u00b2 (reeling operations)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Bending Cycles<br><em>\u5f2f\u66f2\u5faa\u73af<\/em><\/td>\n                    <td>Moderate frequency<\/td>\n                    <td>High frequency (>50,000 cycles)<\/td>\n                <\/tr>\n                <tr>\n                    <td>Environmental Conditions<br><em>\u73af\u5883\u6761\u4ef6<\/em><\/td>\n                    <td>Industrial, construction<\/td>\n                    <td>Water immersion, chemicals, extreme temperatures<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <h3>7.1 Dielectric Design Considerations \u4ecb\u7535\u8bbe\u8ba1\u8003\u8651\u56e0\u7d20<\/h3>\n        \n        <p>For medium voltage cables per VDE 0250-813, the insulation thickness must be sufficient to maintain the electric field strength within safe limits under all operating conditions, including voltage surges and transient overvoltages. The design stress for EPR insulation is typically limited to 2-4 kV\/mm to provide adequate safety margins against electrical breakdown.<\/p>\n        \n        <p><em>\u5bf9\u4e8e\u7b26\u5408VDE 0250-813\u7684\u4e2d\u538b\u7535\u7f06\uff0c\u7edd\u7f18\u539a\u5ea6\u5fc5\u987b\u8db3\u4ee5\u5728\u6240\u6709\u8fd0\u884c\u6761\u4ef6\u4e0b\uff08\u5305\u62ec\u7535\u538b\u6d6a\u6d8c\u548c\u77ac\u6001\u8fc7\u7535\u538b\uff09\u5c06\u7535\u573a\u5f3a\u5ea6\u4fdd\u6301\u5728\u5b89\u5168\u9650\u5ea6\u5185\u3002EPR\u7edd\u7f18\u7684\u8bbe\u8ba1\u5e94\u529b\u901a\u5e38\u9650\u5236\u57282-4 kV\/mm\uff0c\u4ee5\u63d0\u4f9b\u8db3\u591f\u7684\u5b89\u5168\u88d5\u5ea6\u9632\u6b62\u7535\u51fb\u7a7f\u3002<\/em><\/p>\n\n        <h3>7.2 Mechanical Design Considerations \u673a\u68b0\u8bbe\u8ba1\u8003\u8651\u56e0\u7d20<\/h3>\n        \n        <p>The increased insulation thickness in VDE 0250-813 cables also provides additional mechanical protection against the severe stresses encountered in mining environments. The thicker insulation wall helps distribute impact and crushing loads, reducing the risk of insulation damage that could lead to electrical failure.<\/p>\n        \n        <p><em>VDE 0250-813\u7535\u7f06\u4e2d\u589e\u52a0\u7684\u7edd\u7f18\u539a\u5ea6\u8fd8\u63d0\u4f9b\u4e86\u989d\u5916\u7684\u673a\u68b0\u4fdd\u62a4\uff0c\u4ee5\u62b5\u5fa1\u91c7\u77ff\u73af\u5883\u4e2d\u9047\u5230\u7684\u4e25\u91cd\u5e94\u529b\u3002\u66f4\u539a\u7684\u7edd\u7f18\u58c1\u6709\u52a9\u4e8e\u5206\u6563\u51b2\u51fb\u548c\u538b\u788e\u8d1f\u8f7d\uff0c\u964d\u4f4e\u53ef\u80fd\u5bfc\u81f4\u7535\u6c14\u6545\u969c\u7684\u7edd\u7f18\u635f\u574f\u98ce\u9669\u3002<\/em><\/p>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/feichuncables.com\/blog\/what-is-din-vde-0250-cable\/\" rel=\"nofollow\" target=\"_blank\">Feichun Cables &#8211; DIN VDE 0250 Cable Technical Guide<\/a><\/li>\n            <li><a href=\"https:\/\/www.elandcables.com\/electrical-cable-and-accessories\/cables-by-standard\/vde0250-cable\" rel=\"nofollow noopener\" target=\"_blank\">Eland Cables &#8211; DIN VDE 0250 Standard Cable Overview<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"application-selection\">\n        <h2>8. Application Selection Guide \u5e94\u7528\u9009\u62e9\u6307\u5357<\/h2>\n        \n        <p>Selecting the appropriate cable standard depends on the specific application requirements, including voltage level, mechanical stress environment, and regulatory compliance needs.<\/p>\n        \n        <p><em>\u9009\u62e9\u9002\u5f53\u7684\u7535\u7f06\u6807\u51c6\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u8981\u6c42\uff0c\u5305\u62ec\u7535\u538b\u7b49\u7ea7\u3001\u673a\u68b0\u5e94\u529b\u73af\u5883\u548c\u76d1\u7ba1\u5408\u89c4\u9700\u6c42\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 9: Application Selection Matrix<\/strong><br><em>\u88689\uff1a\u5e94\u7528\u9009\u62e9\u77e9\u9635<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Application<br><em>\u5e94\u7528<\/em><\/th>\n                    <th>Recommended Standard<br><em>\u63a8\u8350\u6807\u51c6<\/em><\/th>\n                    <th>Typical Cable Type<br><em>\u5178\u578b\u7535\u7f06\u7c7b\u578b<\/em><\/th>\n                    <th>Insulation Range<br><em>\u7edd\u7f18\u8303\u56f4<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Construction equipment (LV)<br><em>\u5efa\u7b51\u8bbe\u5907\uff08\u4f4e\u538b\uff09<\/em><\/td>\n                    <td>VDE 0250-812<\/td>\n                    <td>NSSH\u00d6U<\/td>\n                    <td>1.0-2.2 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Industrial mobile machinery<br><em>\u5de5\u4e1a\u79fb\u52a8\u673a\u68b0<\/em><\/td>\n                    <td>VDE 0250-812<\/td>\n                    <td>(N)SH\u00d6U<\/td>\n                    <td>1.0-2.2 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Quarry equipment (LV)<br><em>\u91c7\u77f3\u573a\u8bbe\u5907\uff08\u4f4e\u538b\uff09<\/em><\/td>\n                    <td>VDE 0250-812<\/td>\n                    <td>NSSH\u00d6U<\/td>\n                    <td>1.0-2.2 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Open-pit mining excavators<br><em>\u9732\u5929\u91c7\u77ff\u6316\u6398\u673a<\/em><\/td>\n                    <td>VDE 0250-813<\/td>\n                    <td>(N)TSCGEW\u00d6U<\/td>\n                    <td>3.4-8.0 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Underground coal cutters<br><em>\u5730\u4e0b\u91c7\u7164\u673a<\/em><\/td>\n                    <td>VDE 0250-813<\/td>\n                    <td>(N)TSCGECEW\u00d6U<\/td>\n                    <td>3.4-4.5 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Tunnel boring machines<br><em>\u96a7\u9053\u6398\u8fdb\u673a<\/em><\/td>\n                    <td>VDE 0250-813<\/td>\n                    <td>(N)TSCGECECW\u00d6U<\/td>\n                    <td>4.5-6.6 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Ship-to-shore cranes<br><em>\u5cb8\u6865\u8d77\u91cd\u673a<\/em><\/td>\n                    <td>VDE 0250-813<\/td>\n                    <td>(N)TSCGEW\u00d6U<\/td>\n                    <td>3.4-4.5 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>RTG cranes<br><em>\u8f6e\u80ce\u5f0f\u9f99\u95e8\u8d77\u91cd\u673a<\/em><\/td>\n                    <td>VDE 0250-813<\/td>\n                    <td>(N)TSCGEW\u00d6U<\/td>\n                    <td>3.4-4.5 mm<\/td>\n                <\/tr>\n                <tr>\n                    <td>Dragline excavators<br><em>\u62c9\u94f2\u6316\u6398\u673a<\/em><\/td>\n                    <td>VDE 0250-813<\/td>\n                    <td>(N)TSCGEW\u00d6U<\/td>\n                    <td>4.5-8.0 mm<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/section>\n\n    <section id=\"testing-requirements\">\n        <h2>9. Testing Requirements \u6d4b\u8bd5\u8981\u6c42<\/h2>\n        \n        <p>Both standards specify rigorous testing requirements to verify insulation integrity, with more stringent requirements for the higher voltage Part 813 cables.<\/p>\n        \n        <p><em>\u4e24\u4e2a\u6807\u51c6\u90fd\u89c4\u5b9a\u4e86\u4e25\u683c\u7684\u6d4b\u8bd5\u8981\u6c42\u4ee5\u9a8c\u8bc1\u7edd\u7f18\u5b8c\u6574\u6027\uff0c\u5bf9\u4e8e\u66f4\u9ad8\u7535\u538b\u7684\u7b2c813\u90e8\u5206\u7535\u7f06\u6709\u66f4\u4e25\u683c\u7684\u8981\u6c42\u3002<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <caption><strong>Table 10: Electrical Test Requirements Comparison<\/strong><br><em>\u886810\uff1a\u7535\u6c14\u6d4b\u8bd5\u8981\u6c42\u6bd4\u8f83<\/em><\/caption>\n            <thead>\n                <tr>\n                    <th>Test<br><em>\u6d4b\u8bd5<\/em><\/th>\n                    <th>VDE 0250-812<br><em>VDE 0250-812<\/em><\/th>\n                    <th>VDE 0250-813<br><em>VDE 0250-813<\/em><\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Routine Voltage Test<br><em>\u4f8b\u884c\u7535\u538b\u6d4b\u8bd5<\/em><\/td>\n                    <td>3 kV AC, 5 min<\/td>\n                    <td>2.5\u00d7U\u2080 + 2 kV AC, 5 min<\/td>\n                <\/tr>\n                <tr>\n                    <td>Type Test Voltage<br><em>\u578b\u5f0f\u8bd5\u9a8c\u7535\u538b<\/em><\/td>\n                    <td>4 kV AC, 5 min<\/td>\n                    <td>3\u00d7U\u2080 + 3 kV AC, 5 min<\/td>\n                <\/tr>\n                <tr>\n                    <td>Insulation Resistance<br><em>\u7edd\u7f18\u7535\u963b<\/em><\/td>\n                    <td>\u226520 M\u03a9\u00d7km<\/td>\n                    <td>\u2265100 M\u03a9\u00d7km<\/td>\n                <\/tr>\n                <tr>\n                    <td>Partial Discharge Test<br><em>\u5c40\u90e8\u653e\u7535\u6d4b\u8bd5<\/em><\/td>\n                    <td>Not required<\/td>\n                    <td>\u226410 pC at 1.5\u00d7U\u2080<\/td>\n                <\/tr>\n                <tr>\n                    <td>Water Immersion Test<br><em>\u6c34\u6d78\u6d4b\u8bd5<\/em><\/td>\n                    <td>5m, 2h, at test voltage<\/td>\n                    <td>5m, 2h min, at test voltage<\/td>\n                <\/tr>\n                <tr>\n                    <td>Thickness Measurement<br><em>\u539a\u5ea6\u6d4b\u91cf<\/em><\/td>\n                    <td>DIN VDE 0472 Part 402<\/td>\n                    <td>DIN VDE 0472 Part 402<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>Sources:<\/p>\n        <ul>\n            <li><a href=\"https:\/\/feichuncables.com\/blog\/din-vde-0250\/\" rel=\"nofollow\" target=\"_blank\">Feichun Cables &#8211; DIN VDE 0250 Testing Requirements<\/a><\/li>\n            <li><a href=\"https:\/\/products.lappgroup.com\/online-catalogue\/power-and-control-cables\/harsh-conditions\/rubber-cables\/nsshoeu.html\" rel=\"nofollow noopener\" target=\"_blank\">Lapp Group &#8211; NSSH\u00d6U Product Specifications<\/a><\/li>\n        <\/ul>\n    <\/section>\n\n    <section id=\"conclusion\">\n        <h2>10. Conclusion \u7ed3\u8bba<\/h2>\n        \n        <p>The insulation thickness requirements for 3GI3 EPR insulation differ substantially between VDE 0250 Part 812 (Mobile) and Part 813 (Mining) cables, reflecting the fundamentally different voltage levels and application environments addressed by each standard.<\/p>\n        \n        <p><em>3GI3 EPR\u7edd\u7f18\u7684\u7edd\u7f18\u539a\u5ea6\u8981\u6c42\u5728VDE 0250\u7b2c812\u90e8\u5206\uff08\u79fb\u52a8\u578b\uff09\u548c\u7b2c813\u90e8\u5206\uff08\u77ff\u7528\u578b\uff09\u7535\u7f06\u4e4b\u95f4\u5b58\u5728\u663e\u8457\u5dee\u5f02\uff0c\u53cd\u6620\u4e86\u6bcf\u4e2a\u6807\u51c6\u6240\u9488\u5bf9\u7684\u6839\u672c\u4e0d\u540c\u7684\u7535\u538b\u7b49\u7ea7\u548c\u5e94\u7528\u73af\u5883\u3002<\/em><\/p>\n\n        <p>Key summary points regarding the insulation thickness differences include the following considerations. VDE 0250-812 cables require insulation thickness ranging from 1.0mm to 2.2mm for conductor sizes 1.5mm\u00b2 to 240mm\u00b2 at 450\/750V rating. VDE 0250-813 cables require insulation thickness ranging from 3.4mm to 8.0mm depending on voltage rating from 3.6\/6kV to 18\/30kV. The ratio of Part 813 to Part 812 insulation thickness ranges from approximately 2.5\u00d7 to 3.75\u00d7 for equivalent conductor sizes. Part 813 cables require additional semiconductive screening layers not present in Part 812 cables. Both standards specify 3GI3 EPR compound per DIN VDE 0207 Part 20, but apply it in different thicknesses appropriate to the voltage stress level.<\/p>\n        \n        <p><em>\u5173\u4e8e\u7edd\u7f18\u539a\u5ea6\u5dee\u5f02\u7684\u4e3b\u8981\u603b\u7ed3\u8981\u70b9\u5305\u62ec\u4ee5\u4e0b\u8003\u8651\u56e0\u7d20\u3002VDE 0250-812\u7535\u7f06\u5728450\/750V\u989d\u5b9a\u7535\u538b\u4e0b\uff0c\u5bfc\u4f53\u5c3a\u5bf81.5mm\u00b2\u81f3240mm\u00b2\u9700\u89811.0mm\u81f32.2mm\u7684\u7edd\u7f18\u539a\u5ea6\u3002VDE 0250-813\u7535\u7f06\u6839\u636e3.6\/6kV\u81f318\/30kV\u7684\u7535\u538b\u7b49\u7ea7\u9700\u89813.4mm\u81f38.0mm\u7684\u7edd\u7f18\u539a\u5ea6\u3002\u7b2c813\u90e8\u5206\u4e0e\u7b2c812\u90e8\u5206\u7684\u7edd\u7f18\u539a\u5ea6\u6bd4\u5728\u7b49\u6548\u5bfc\u4f53\u5c3a\u5bf8\u4e0b\u7ea6\u4e3a2.5\u00d7\u81f33.75\u00d7\u3002\u7b2c813\u90e8\u5206\u7535\u7f06\u9700\u8981\u7b2c812\u90e8\u5206\u7535\u7f06\u4e2d\u4e0d\u5b58\u5728\u7684\u989d\u5916\u534a\u5bfc\u7535\u5c4f\u853d\u5c42\u3002\u4e24\u4e2a\u6807\u51c6\u90fd\u89c4\u5b9a\u6309DIN VDE 0207\u7b2c20\u90e8\u5206\u4f7f\u75283GI3 EPR\u5316\u5408\u7269\uff0c\u4f46\u6839\u636e\u7535\u538b\u5e94\u529b\u6c34\u5e73\u5e94\u7528\u4e0d\u540c\u7684\u539a\u5ea6\u3002<\/em><\/p>\n\n        <p>Engineers must carefully consider these differences when specifying cables for their intended application to ensure adequate electrical safety, mechanical durability, and compliance with applicable regulations.<\/p>\n        \n        <p><em>\u5de5\u7a0b\u5e08\u5728\u4e3a\u9884\u671f\u5e94\u7528\u6307\u5b9a\u7535\u7f06\u65f6\u5fc5\u987b\u4ed4\u7ec6\u8003\u8651\u8fd9\u4e9b\u5dee\u5f02\uff0c\u4ee5\u786e\u4fdd\u8db3\u591f\u7684\u7535\u6c14\u5b89\u5168\u3001\u673a\u68b0\u8010\u4e45\u6027\u548c\u7b26\u5408\u9002\u7528\u6cd5\u89c4\u3002<\/em><\/p>\n    <\/section>\n\n    <section id=\"contact\">\n        <h2>11. Contact Information \u8054\u7cfb\u65b9\u5f0f<\/h2>\n        \n        <p><strong>Anhui Feichun Special Cable Co., Ltd.<\/strong><br>\n        <em>\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8<\/em><\/p>\n\n        <table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\">\n            <tbody>\n                <tr>\n                    <td><strong>Technical Inquiries<br><em>\u6280\u672f\u54a8\u8be2<\/em><\/strong><\/td>\n                    <td><a href=\"mailto:tech@feichuncables.com\">tech@feichuncables.com<\/a><\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Sales (Zihao Yang)<br><em>\u9500\u552e\uff08\u6768\u5b50\u8c6a\uff09<\/em><\/strong><\/td>\n                    <td><a href=\"mailto:zihao.yang@feichuncables.com\">zihao.yang@feichuncables.com<\/a><\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Sales (Ziyu Huang)<br><em>\u9500\u552e\uff08\u9ec4\u5b50\u715c\uff09<\/em><\/strong><\/td>\n                    <td><a href=\"mailto:ziyu.huang@feichuncables.com\">ziyu.huang@feichuncables.com<\/a><\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>WhatsApp<\/strong><\/td>\n                    <td><a href=\"https:\/\/wa.me\/8613855123218\" rel=\"nofollow noopener\" target=\"_blank\">+86 138 5512 3218<\/a><\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>Our engineering team provides comprehensive technical support for cable selection, insulation thickness verification, and custom cable design for mining, tunnelling, crane, and heavy industrial applications.<\/p>\n        \n        <p><em>\u6211\u4eec\u7684\u5de5\u7a0b\u56e2\u961f\u4e3a\u91c7\u77ff\u3001\u96a7\u9053\u3001\u8d77\u91cd\u673a\u548c\u91cd\u5de5\u4e1a\u5e94\u7528\u63d0\u4f9b\u7535\u7f06\u9009\u62e9\u3001\u7edd\u7f18\u539a\u5ea6\u9a8c\u8bc1\u548c\u5b9a\u5236\u7535\u7f06\u8bbe\u8ba1\u7684\u5168\u9762\u6280\u672f\u652f\u6301\u3002<\/em><\/p>\n    <\/section>\n\n    <footer>\n        <hr>\n        <h3>References \u53c2\u8003\u6587\u732e<\/h3>\n        <ol>\n            <li><a href=\"https:\/\/tratosgroup.com\/products\/standards\/others\/din-vde-0250-part-812\/\" rel=\"nofollow noopener\" target=\"_blank\">Tratos Group &#8211; DIN VDE 0250 Part 812 Standard<\/a><\/li>\n            <li><a href=\"https:\/\/tratosgroup.com\/products\/standards\/others\/din-vde-250-part-813\/\" rel=\"nofollow noopener\" target=\"_blank\">Tratos Group &#8211; DIN VDE 0250 Part 813 Standard<\/a><\/li>\n            <li><a href=\"https:\/\/www.prysmian.com\/sites\/default\/files\/business_markets\/markets\/downloads\/datasheets\/Medium-Voltage-Round.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Prysmian &#8211; PROTOLON Medium Voltage Reeling Cables<\/a><\/li>\n            <li><a href=\"https:\/\/www.powerandcables.com\/wp-content\/uploads\/2017\/07\/Mining-Cables-T-F-Kable-Catalogue.pdf\" rel=\"nofollow noopener\" target=\"_blank\">T&#038;F Kable &#8211; Mining Cables Technical Catalogue<\/a><\/li>\n            <li><a href=\"https:\/\/www.baoliyy.com\/vde-0250-part-812-nsshoeu-o-j-0-6-1kv-heavy-duty-flexible-cable-2\/\" rel=\"nofollow noopener\" target=\"_blank\">JYTOP Cable &#8211; VDE 0250 Part 812 NSSH\u00d6U Specifications<\/a><\/li>\n            <li><a href=\"http:\/\/www.ddacables.com\/katalog\/07_nsshou.php\" rel=\"nofollow noopener\" target=\"_blank\">DDA Cables &#8211; NSSH\u00d6U Technical Data<\/a><\/li>\n            <li><a href=\"https:\/\/www.incore-cables.com\/wp-content\/uploads\/2018\/12\/Datasheet-NTSCGEWOEU.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Incore Cables &#8211; (N)TSCGEW\u00d6U Datasheet<\/a><\/li>\n            <li><a href=\"https:\/\/feichuncables.com\/blog\/what-is-din-vde-0250-reeling-cables\/\" rel=\"nofollow\" target=\"_blank\">Feichun Cables &#8211; DIN VDE 0250 Reeling Cables Guide<\/a><\/li>\n            <li><a href=\"https:\/\/www.elandcables.com\/electrical-cable-and-accessories\/cables-by-standard\/vde0250-cable\" rel=\"nofollow noopener\" target=\"_blank\">Eland Cables &#8211; DIN VDE 0250 Cable Overview<\/a><\/li>\n            <li><a href=\"https:\/\/www.vde-verlag.de\/standards\/0250028\/din-vde-0250-812-vde-0250-812-1985-05.html\" rel=\"nofollow noopener\" target=\"_blank\">VDE Verlag &#8211; DIN VDE 0250-812 Standard<\/a><\/li>\n        <\/ol>\n        \n        <p><em>This technical analysis was prepared by Anhui Feichun Special Cable Co., Ltd. (\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8). For assistance with insulation thickness calculations and cable selection, please contact our engineering team.<\/em><\/p>\n    <\/footer>\n\n<\/article>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"The DIN VDE 0250 standard series defines the technical requirements for rubber-insulated flexible cables used in demanding industrial environments. Within this framework, Part 812 and Part 813 address distinctly different application domains with correspondingly different insulation thickness requirements for the 3GI3 EPR (Ethylene Propylene Rubber) compound specified in DIN VDE 0207 Part 20.\nDIN VDE 0250\u6807\u51c6\u7cfb\u5217\u5b9a\u4e49\u4e86\u7528\u4e8e\u82db\u523b\u5de5\u4e1a\u73af\u5883\u7684\u6a61\u80f6\u7edd\u7f18\u67d4\u6027\u7535\u7f06\u7684\u6280\u672f\u8981\u6c42\u3002\u5728\u6b64\u6846\u67b6\u5185\uff0c\u7b2c812\u90e8\u5206\u548c\u7b2c813\u90e8\u5206\u9488\u5bf9\u622a\u7136\u4e0d\u540c\u7684\u5e94\u7528\u9886\u57df\uff0c\u5bf9DIN VDE 0207\u7b2c20\u90e8\u5206\u89c4\u5b9a\u76843GI3 EPR\uff08\u4e59\u4e19\u6a61\u80f6\uff09\u5316\u5408\u7269\u5177\u6709\u76f8\u5e94\u4e0d\u540c\u7684\u7edd\u7f18\u539a\u5ea6\u8981\u6c42\u3002","protected":false},"author":1,"featured_media":4966,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"left","csco_page_header_type":"title","csco_page_load_nextpost":"","footnotes":""},"categories":[66,94,722,93,7,56],"tags":[16081,12511,26573,21672,20950,20947,20952,20942,21677,20941,12652,12507,20891,12139,14260,11620,31322,16,171,152,107,176,9822,111,139,204,17],"class_list":["post-4965","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-din-vde-0250-mining-cable","category-marine-cables","category-mining-cable-with-self-sufficient-leds","category-mining-trailing-cable","category-reeling-cable","tag-30c-mining-cable","tag-40c-mining-cable","tag-40c-mining-cable-2","tag-n3ghsshch-cable-lszh-mining-cable","tag-n3ghsshch-low-smoke-n3ghsshch-underground-mining","tag-n3ghsshch-mining-cable-n3ghsshch-3-6-6kv","tag-n3ghsshch-tunnel-cable-n3ghsshch-fire-safe-mining-cable","tag-n3ghssycy-12-20kv-n3ghssycy-underground-mining","tag-n3ghssycy-cable-pvc-sheathed-mining-cable","tag-n3ghssycy-mining-cable-n3ghssycy-3-6-6kv","tag-nsshoeu-mining-cable-2","tag-ntscgewoeu-mining-cable-2","tag-ntscgewou-mining-cable-ntscgewou-fo","tag-12-20kv-epr-insulated-cpe-sheathed-mining-cable","tag-3-8-6-6kv-mining-cable","tag-3kv-vs-6kv-mining-cable","tag-3x120-mining-cable","tag-din-vde-0250","tag-explosion-proof-mining-cable","tag-heavy-duty-mining-cable","tag-heavy-duty-e-loader-mining-cable","tag-icea-s-75-381-2","tag-mining","tag-mining-cable","tag-mining-cables","tag-mining-trailing-cable","tag-reeling-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/4965","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=4965"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/4965\/revisions"}],"predecessor-version":[{"id":4968,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/4965\/revisions\/4968"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/4966"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=4965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=4965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=4965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}