{"id":4925,"date":"2026-01-23T08:59:38","date_gmt":"2026-01-23T00:59:38","guid":{"rendered":"https:\/\/feichuncables.com\/blog\/?p=4925"},"modified":"2026-01-23T08:59:41","modified_gmt":"2026-01-23T00:59:41","slug":"what-is-the-requirement-for-flame-retardancy-iec-60332-1-in-standard-vde-0250-rubber-cables","status":"publish","type":"post","link":"https:\/\/feichuncables.com\/blog\/what-is-the-requirement-for-flame-retardancy-iec-60332-1-in-standard-vde-0250-rubber-cables\/","title":{"rendered":"What is the Requirement for Flame Retardancy (IEC 60332-1) in Standard VDE 0250 Rubber Cables?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">VDE 0250\u6807\u51c6\u6a61\u80f6\u7535\u7f06\u7684\u963b\u71c3\u6027\u8981\u6c42\uff08IEC 60332-1\uff09\u6280\u672f\u8be6\u89e3<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"5b6071\" data-has-transparency=\"false\" style=\"--dominant-color: #5b6071;\" loading=\"lazy\" decoding=\"async\" width=\"906\" height=\"453\" sizes=\"auto, (max-width: 906px) 100vw, 906px\" src=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576.avif\" alt=\"\" class=\"wp-image-4927 not-transparent\" title=\"\" srcset=\"https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576.avif 906w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576-300x150.avif 300w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576-768x384.avif 768w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576-400x200.avif 400w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576-800x400.avif 800w, https:\/\/feichuncables.com\/blog\/wp-content\/uploads\/image-576-832x416.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 guide on IEC 60332-1 flame retardancy requirements for VDE 0250 rubber cables. Comprehensive test procedures, acceptance criteria, and compliance standards by Anhui Feichun Special Cable Co., Ltd.\">\n    <meta name=\"keywords\" content=\"IEC 60332-1, VDE 0250, flame retardant cable, rubber cable, vertical flame test, cable fire safety, NSSH\u00d6U cable, flame propagation test\">\n    <title>Flame Retardancy Requirements (IEC 60332-1) in VDE 0250 Rubber Cables | Anhui Feichun Special Cable<\/title>\n    <style>\n        \/* === THEME-ADAPTIVE BASE (No Custom Colors) === *\/\n        :root {\n            --content-max-width: 100%;\n            --table-border-width: 1px;\n            --spacing-unit: 1rem;\n        }\n        \n        \/* === RESET & BASE === *\/\n        *, *::before, *::after {\n            box-sizing: border-box;\n            margin: 0;\n            padding: 0;\n        }\n        \n        \/* === LAYOUT: Full Width, No Sidebar === *\/\n        .article-container {\n            width: 100%;\n            max-width: var(--content-max-width);\n   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itemtype=\"https:\/\/schema.org\/Organization\">\n                <span itemprop=\"name\">Anhui Feichun Special Cable Co., Ltd. \u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8<\/span>\n            <\/span>\n        <\/header>\n        \n        <section class=\"content-section\">\n            <h2>Executive Summary \u6267\u884c\u6458\u8981<\/h2>\n            <p>\n                VDE 0250 rubber cables are required to comply with <abbr title=\"International Electrotechnical Commission\">IEC<\/abbr> 60332-1 flame retardancy testing, which evaluates the vertical flame propagation characteristics of single insulated wires and cables under fire conditions. This standard establishes that the cable must self-extinguish after flame removal and the charred zone must not extend within <strong>50mm<\/strong> of the upper mounting clamp. Most VDE 0250 rubber cables constructed with flame-retardant materials such as chloroprene rubber (CR\/Neoprene) or compounds with flame-retardant additives are designed to pass this critical fire safety test.<sup>[1][2]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                VDE 0250\u6a61\u80f6\u7535\u7f06\u5fc5\u987b\u7b26\u5408IEC 60332-1\u963b\u71c3\u6d4b\u8bd5\u8981\u6c42\uff0c\u8be5\u6d4b\u8bd5\u8bc4\u4f30\u5355\u6839\u7edd\u7f18\u7535\u7ebf\u7535\u7f06\u5728\u706b\u707e\u6761\u4ef6\u4e0b\u7684\u5782\u76f4\u706b\u7130\u8513\u5ef6\u7279\u6027\u3002\u8be5\u6807\u51c6\u89c4\u5b9a\u7535\u7f06\u5728\u79fb\u9664\u706b\u7130\u540e\u5fc5\u987b\u81ea\u7184\uff0c\u4e14\u78b3\u5316\u533a\u57df\u4e0d\u5f97\u5ef6\u4f38\u81f3\u4e0a\u56fa\u5b9a\u5939\u517750mm\u8303\u56f4\u5185\u3002\u5927\u591a\u6570\u91c7\u7528\u963b\u71c3\u6750\u6599\uff08\u5982\u6c2f\u4e01\u6a61\u80f6\u6216\u6dfb\u52a0\u963b\u71c3\u5242\u7684\u5316\u5408\u7269\uff09\u5236\u9020\u7684VDE 0250\u6a61\u80f6\u7535\u7f06\u5747\u8bbe\u8ba1\u4e3a\u901a\u8fc7\u6b64\u5173\u952e\u9632\u706b\u5b89\u5168\u6d4b\u8bd5\u3002\n            <\/p>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Understanding IEC 60332-1 Standard \u4e86\u89e3IEC 60332-1\u6807\u51c6<\/h2>\n            \n            <p>\n                The IEC 60332-1 series, developed by the International Electrotechnical Commission Technical Committee 20 (Electric Cables), defines the test apparatus and procedures for evaluating single cable flame propagation resistance. The standard is divided into three parts: IEC 60332-1-1 specifies the apparatus, IEC 60332-1-2 describes the procedure using a 1 kW pre-mixed flame, and IEC 60332-1-3 addresses the identification of flaming droplets or particles.<sup>[1][3]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                IEC 60332-1\u7cfb\u5217\u7531\u56fd\u9645\u7535\u5de5\u59d4\u5458\u4f1a\u7b2c20\u6280\u672f\u59d4\u5458\u4f1a\uff08\u7535\u7f06\uff09\u5236\u5b9a\uff0c\u5b9a\u4e49\u4e86\u8bc4\u4f30\u5355\u6839\u7535\u7f06\u963b\u71c3\u6027\u7684\u6d4b\u8bd5\u8bbe\u5907\u548c\u7a0b\u5e8f\u3002\u8be5\u6807\u51c6\u5206\u4e3a\u4e09\u90e8\u5206\uff1aIEC 60332-1-1\u89c4\u5b9a\u8bbe\u5907\u8981\u6c42\uff0cIEC 60332-1-2\u63cf\u8ff0\u4f7f\u75281 kW\u9884\u6df7\u706b\u7130\u7684\u6d4b\u8bd5\u7a0b\u5e8f\uff0cIEC 60332-1-3\u6d89\u53ca\u71c3\u70e7\u6ef4\u843d\u7269\u6216\u9897\u7c92\u7684\u8bc6\u522b\u3002\n            <\/p>\n            \n            <div class=\"spec-grid\">\n                <dl class=\"spec-card\">\n                    <dt>Test Flame Power \u6d4b\u8bd5\u706b\u7130\u529f\u7387<\/dt>\n                    <dd>1 kW <small>Pre-mixed Propane\/Air \u9884\u6df7\u4e19\u70f7\/\u7a7a\u6c14<\/small><\/dd>\n                <\/dl>\n                <dl class=\"spec-card\">\n                    <dt>Specimen Length \u8bd5\u6837\u957f\u5ea6<\/dt>\n                    <dd>600 mm <small>\u00b125 mm tolerance \u00b125mm\u516c\u5dee<\/small><\/dd>\n                <\/dl>\n                <dl class=\"spec-card\">\n                    <dt>Support Spacing \u652f\u6491\u95f4\u8ddd<\/dt>\n                    <dd>550 mm <small>\u00b15 mm tolerance \u00b15mm\u516c\u5dee<\/small><\/dd>\n                <\/dl>\n                <dl class=\"spec-card\">\n                    <dt>Burner Angle \u71c3\u70e7\u5668\u89d2\u5ea6<\/dt>\n                    <dd>45\u00b0 <small>From vertical axis \u504f\u79bb\u5782\u76f4\u8f74<\/small><\/dd>\n                <\/dl>\n            <\/div>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Test Procedure Per IEC 60332-1-2 \u6d4b\u8bd5\u7a0b\u5e8f\uff08\u4f9d\u636eIEC 60332-1-2\uff09<\/h2>\n            \n            <h3>Specimen Preparation and Mounting \u8bd5\u6837\u51c6\u5907\u548c\u5b89\u88c5<\/h3>\n            <p>\n                The test specimen consists of a 600mm (\u00b125mm) length of single insulated conductor or cable. Before testing, the specimen must be conditioned at a temperature of 23\u00b0C (\u00b110\u00b0C) for at least 16 hours. The overall diameter is measured at three locations at least 100mm apart using the method specified in IEC 60811-203, and the average determines the required flame application time.<sup>[1][4]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                \u6d4b\u8bd5\u8bd5\u6837\u7531600mm\uff08\u00b125mm\uff09\u957f\u5ea6\u7684\u5355\u6839\u7edd\u7f18\u5bfc\u4f53\u6216\u7535\u7f06\u7ec4\u6210\u3002\u6d4b\u8bd5\u524d\uff0c\u8bd5\u6837\u5fc5\u987b\u572823\u00b0C\uff08\u00b110\u00b0C\uff09\u6e29\u5ea6\u4e0b\u8c03\u8282\u81f3\u5c1116\u5c0f\u65f6\u3002\u4f7f\u7528IEC 60811-203\u89c4\u5b9a\u7684\u65b9\u6cd5\u5728\u81f3\u5c11\u76f8\u8ddd100mm\u7684\u4e09\u4e2a\u4f4d\u7f6e\u6d4b\u91cf\u603b\u76f4\u5f84\uff0c\u5e73\u5747\u503c\u51b3\u5b9a\u6240\u9700\u7684\u706b\u7130\u65bd\u52a0\u65f6\u95f4\u3002\n            <\/p>\n            \n            <ol class=\"procedure-list\">\n                <li>\n                    <strong>Vertical Mounting \u5782\u76f4\u5b89\u88c5:<\/strong> The specimen is fixed vertically in the center of a metal enclosure using copper wire on two horizontal supports, with the bottom of the upper support 550mm (\u00b15mm) from the top of the lower support.<sup>[1]<\/sup>\n                    <span class=\"cn-note\">\u8bd5\u6837\u4f7f\u7528\u94dc\u4e1d\u56fa\u5b9a\u5728\u91d1\u5c5e\u7bb1\u4f53\u4e2d\u592e\u7684\u4e24\u4e2a\u6c34\u5e73\u652f\u67b6\u4e0a\uff0c\u4e0a\u652f\u67b6\u5e95\u90e8\u8ddd\u4e0b\u652f\u67b6\u9876\u90e8550mm\uff08\u00b15mm\uff09\u3002<\/span>\n                <\/li>\n                <li>\n                    <strong>Burner Positioning \u71c3\u70e7\u5668\u5b9a\u4f4d:<\/strong> The burner is positioned so the inner blue cone of the flame strikes the cable surface at a distance of 475mm from the lower edge of the upper horizontal support, at a 45\u00b0 angle to the vertical axis.<sup>[1][4]<\/sup>\n                    <span class=\"cn-note\">\u71c3\u70e7\u5668\u5b9a\u4f4d\u4f7f\u706b\u7130\u84dd\u8272\u5185\u9525\u63a5\u89e6\u7535\u7f06\u8868\u9762\uff0c\u8ddd\u4e0a\u6c34\u5e73\u652f\u67b6\u4e0b\u8fb9\u7f18475mm\u5904\uff0c\u4e0e\u5782\u76f4\u8f74\u544845\u00b0\u89d2\u3002<\/span>\n                <\/li>\n                <li>\n                    <strong>Flame Application \u706b\u7130\u65bd\u52a0:<\/strong> The flame is applied for a duration determined by cable diameter (see Table 1). The test chamber temperature is maintained at 23\u00b0C (\u00b110\u00b0C) with no forced ventilation during the test.<sup>[1][3]<\/sup>\n                    <span class=\"cn-note\">\u706b\u7130\u65bd\u52a0\u6301\u7eed\u65f6\u95f4\u7531\u7535\u7f06\u76f4\u5f84\u51b3\u5b9a\uff08\u89c1\u88681\uff09\u3002\u6d4b\u8bd5\u671f\u95f4\u8bd5\u9a8c\u5ba4\u6e29\u5ea6\u4fdd\u6301\u572823\u00b0C\uff08\u00b110\u00b0C\uff09\uff0c\u65e0\u5f3a\u5236\u901a\u98ce\u3002<\/span>\n                <\/li>\n                <li>\n                    <strong>Observation and Evaluation \u89c2\u5bdf\u548c\u8bc4\u4f30:<\/strong> After the specified flame application time, the burner is removed and extinguished. The cable is observed until all flaming and glowing ceases, then the charred extent is measured.<sup>[1]<\/sup>\n                    <span class=\"cn-note\">\u89c4\u5b9a\u7684\u706b\u7130\u65bd\u52a0\u65f6\u95f4\u540e\uff0c\u79fb\u9664\u5e76\u7184\u706d\u71c3\u70e7\u5668\u3002\u89c2\u5bdf\u7535\u7f06\u76f4\u81f3\u6240\u6709\u71c3\u70e7\u548c\u9634\u71c3\u505c\u6b62\uff0c\u7136\u540e\u6d4b\u91cf\u78b3\u5316\u8303\u56f4\u3002<\/span>\n                <\/li>\n            <\/ol>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Flame Application Time Requirements \u706b\u7130\u65bd\u52a0\u65f6\u95f4\u8981\u6c42<\/h2>\n            \n            <div class=\"data-table-wrapper\">\n                <table class=\"data-table\">\n                    <caption>Table 1: Flame Application Time Based on Cable Diameter (IEC 60332-1-2)<br><span class=\"cn-note\">\u88681\uff1a\u57fa\u4e8e\u7535\u7f06\u76f4\u5f84\u7684\u706b\u7130\u65bd\u52a0\u65f6\u95f4\uff08IEC 60332-1-2\uff09<\/span><\/caption>\n                    <thead>\n                        <tr>\n                            <th scope=\"col\">Cable Overall Diameter (D)<br><span class=\"cn-note\">\u7535\u7f06\u603b\u76f4\u5f84<\/span><\/th>\n                            <th scope=\"col\">Flame Application Time<br><span class=\"cn-note\">\u706b\u7130\u65bd\u52a0\u65f6\u95f4<\/span><\/th>\n                            <th scope=\"col\">Tolerance<br><span class=\"cn-note\">\u516c\u5dee<\/span><\/th>\n                            <th scope=\"col\">Typical VDE 0250 Cable Types<br><span class=\"cn-note\">\u5178\u578bVDE 0250\u7535\u7f06\u7c7b\u578b<\/span><\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td>D \u2264 25 mm<\/td>\n                            <td><strong class=\"table-highlight\">60 seconds<\/strong><\/td>\n                            <td>\u00b12 s<\/td>\n                            <td>H07RN-F 3G1.5, H07RN-F 5G2.5<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>25 mm &lt; D \u2264 50 mm<\/td>\n                            <td><strong class=\"table-highlight\">120 seconds<\/strong><\/td>\n                            <td>\u00b12 s<\/td>\n                            <td>H07RN-F 4G16, NSSH\u00d6U 3\u00d725+3\u00d710<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>50 mm &lt; D \u2264 75 mm<\/td>\n                            <td><strong class=\"table-highlight\">240 seconds<\/strong><\/td>\n                            <td>\u00b12 s<\/td>\n                            <td>NSSH\u00d6U 3\u00d770+3\u00d735, (N)SH\u00d6U 3\u00d795<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>D &gt; 75 mm<\/td>\n                            <td><strong class=\"table-highlight\">480 seconds<\/strong><\/td>\n                            <td>\u00b12 s<\/td>\n                            <td>NSSH\u00d6U 3\u00d7150+3\u00d770, Mining cables<\/td>\n                        <\/tr>\n                    <\/tbody>\n                    <tfoot>\n                        <tr>\n                            <td colspan=\"4\">Note: For non-circular cables (e.g., flat cables), measure circumference and calculate equivalent circular diameter.<sup>[1][4]<\/sup><br>\u6ce8\uff1a\u5bf9\u4e8e\u975e\u5706\u5f62\u7535\u7f06\uff08\u5982\u6241\u5e73\u7535\u7f06\uff09\uff0c\u6d4b\u91cf\u5468\u957f\u5e76\u8ba1\u7b97\u7b49\u6548\u5706\u5f62\u76f4\u5f84\u3002<\/td>\n                        <\/tr>\n                    <\/tfoot>\n                <\/table>\n            <\/div>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Acceptance Criteria \u9a8c\u6536\u6807\u51c6<\/h2>\n            \n            <div class=\"alert-box\">\n                <strong>Pass Requirements \u901a\u8fc7\u8981\u6c42:<\/strong>\n                <p>According to IEC 60332-1-2 Annex A, for a cable to pass the flame retardancy test, two criteria must be satisfied:<\/p>\n                <p class=\"cn-note\">\u6839\u636eIEC 60332-1-2\u9644\u5f55A\uff0c\u7535\u7f06\u901a\u8fc7\u963b\u71c3\u6d4b\u8bd5\u5fc5\u987b\u6ee1\u8db3\u4e24\u4e2a\u6807\u51c6\uff1a<\/p>\n            <\/div>\n            \n            <div class=\"data-table-wrapper\">\n                <table class=\"data-table\">\n                    <caption>Table 2: IEC 60332-1-2 Pass\/Fail Criteria<br><span class=\"cn-note\">\u88682\uff1aIEC 60332-1-2\u901a\u8fc7\/\u5931\u8d25\u6807\u51c6<\/span><\/caption>\n                    <thead>\n                        <tr>\n                            <th scope=\"col\">Criterion<br><span class=\"cn-note\">\u6807\u51c6<\/span><\/th>\n                            <th scope=\"col\">Requirement<br><span class=\"cn-note\">\u8981\u6c42<\/span><\/th>\n                            <th scope=\"col\">Measurement Point<br><span class=\"cn-note\">\u6d4b\u91cf\u70b9<\/span><\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td><strong class=\"table-highlight\">Self-Extinguishing \u81ea\u7184\u6027<\/strong><\/td>\n                            <td>Cable must extinguish itself after burner removal<\/td>\n                            <td>Visual observation until no flame\/glow<br>\u76ee\u89c6\u89c2\u5bdf\u81f3\u65e0\u706b\u7130\/\u9634\u71c3<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong class=\"table-highlight\">Char Height Limit \u78b3\u5316\u9ad8\u5ea6\u9650\u5236<\/strong><\/td>\n                            <td>Charred\/damaged zone must NOT extend within 50mm of the bottom edge of the upper support clamp<\/td>\n                            <td>Distance from upper clamp bottom edge to top of char zone \u226550mm<br>\u4e0a\u5939\u5177\u5e95\u8fb9\u81f3\u78b3\u5316\u533a\u9876\u90e8\u8ddd\u79bb\u226550mm<\/td>\n                        <\/tr>\n                    <\/tbody>\n                    <tfoot>\n                        <tr>\n                            <td colspan=\"3\">Source: IEC 60332-1-2:2004+AMD1:2015 Annex A \u2013 Recommended requirements for performance.<sup>[1]<\/sup><\/td>\n                        <\/tr>\n                    <\/tfoot>\n                <\/table>\n            <\/div>\n            \n            <p>\n                When evaluating the charred extent, all soot is to be ignored if the original surface remains undamaged when wiped off. Similarly, softening or any deformation of the non-metallic material should also be disregarded. The flame spread is measured as the extent of actual char damage from the point of flame application upward toward the upper support.<sup>[1][3]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                \u8bc4\u4f30\u78b3\u5316\u8303\u56f4\u65f6\uff0c\u5982\u679c\u64e6\u62ed\u540e\u539f\u59cb\u8868\u9762\u4fdd\u6301\u5b8c\u597d\uff0c\u5219\u5e94\u5ffd\u7565\u6240\u6709\u70df\u7070\u3002\u540c\u6837\uff0c\u975e\u91d1\u5c5e\u6750\u6599\u7684\u8f6f\u5316\u6216\u4efb\u4f55\u53d8\u5f62\u4e5f\u5e94\u5ffd\u7565\u3002\u706b\u7130\u8513\u5ef6\u6d4b\u91cf\u4e3a\u4ece\u706b\u7130\u65bd\u52a0\u70b9\u5411\u4e0a\u81f3\u4e0a\u652f\u67b6\u65b9\u5411\u7684\u5b9e\u9645\u78b3\u5316\u635f\u574f\u8303\u56f4\u3002\n            <\/p>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>VDE 0250 Rubber Cable Flame Retardant Materials VDE 0250\u6a61\u80f6\u7535\u7f06\u963b\u71c3\u6750\u6599<\/h2>\n            \n            <p>\n                VDE 0250 specifies requirements for various rubber-insulated cable types including the widely used NSSH\u00d6U (heavy-duty rubber-sheathed flexible cables) and H07RN-F (harmonized rubber flexible cables). These cables typically utilize sheath and insulation compounds specifically formulated to achieve IEC 60332-1 compliance.<sup>[5][6]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                VDE 0250\u89c4\u5b9a\u4e86\u5404\u79cd\u6a61\u80f6\u7edd\u7f18\u7535\u7f06\u7c7b\u578b\u7684\u8981\u6c42\uff0c\u5305\u62ec\u5e7f\u6cdb\u4f7f\u7528\u7684NSSH\u00d6U\uff08\u91cd\u578b\u6a61\u80f6\u62a4\u5957\u67d4\u6027\u7535\u7f06\uff09\u548cH07RN-F\uff08\u534f\u8c03\u6a61\u80f6\u67d4\u6027\u7535\u7f06\uff09\u3002\u8fd9\u4e9b\u7535\u7f06\u901a\u5e38\u4f7f\u7528\u4e13\u95e8\u914d\u65b9\u7684\u62a4\u5957\u548c\u7edd\u7f18\u5316\u5408\u7269\u4ee5\u8fbe\u5230IEC 60332-1\u5408\u89c4\u6027\u3002\n            <\/p>\n            \n            <div class=\"data-table-wrapper\">\n                <table class=\"data-table\">\n                    <caption>Table 3: Flame Retardant Materials in VDE 0250 Rubber Cables<br><span class=\"cn-note\">\u88683\uff1aVDE 0250\u6a61\u80f6\u7535\u7f06\u4e2d\u7684\u963b\u71c3\u6750\u6599<\/span><\/caption>\n                    <thead>\n                        <tr>\n                            <th scope=\"col\">Material Type<br><span class=\"cn-note\">\u6750\u6599\u7c7b\u578b<\/span><\/th>\n                            <th scope=\"col\">Chemical Designation<br><span class=\"cn-note\">\u5316\u5b66\u540d\u79f0<\/span><\/th>\n                            <th scope=\"col\">Flame Retardant Mechanism<br><span class=\"cn-note\">\u963b\u71c3\u673a\u7406<\/span><\/th>\n                            <th scope=\"col\">IEC 60332-1 Performance<br><span class=\"cn-note\">IEC 60332-1\u6027\u80fd<\/span><\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td><strong>Chloroprene Rubber (CR)<\/strong><br>\u6c2f\u4e01\u6a61\u80f6<\/td>\n                            <td>Polychloroprene (Neoprene)<\/td>\n                            <td>Chlorine release during combustion inhibits flame propagation<br>\u71c3\u70e7\u65f6\u91ca\u653e\u6c2f\u6c14\u6291\u5236\u706b\u7130\u8513\u5ef6<\/td>\n                            <td>Inherently flame retardant \u2013 typically passes<br>\u56fa\u6709\u963b\u71c3\u6027-\u901a\u5e38\u901a\u8fc7<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>EPR\/EPDM with FR Additives<\/strong><br>\u6dfb\u52a0\u963b\u71c3\u5242\u7684\u4e59\u4e19\u6a61\u80f6<\/td>\n                            <td>Ethylene Propylene Rubber + ATH\/MDH<\/td>\n                            <td>Aluminum\/Magnesium hydroxide releases water vapor, dilutes combustible gases<br>\u6c22\u6c27\u5316\u94dd\/\u9541\u91ca\u653e\u6c34\u84b8\u6c14\u7a00\u91ca\u53ef\u71c3\u6c14\u4f53<\/td>\n                            <td>Passes with proper additive loading<br>\u9002\u5f53\u6dfb\u52a0\u5242\u7528\u91cf\u65f6\u901a\u8fc7<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>Halogen-Free FR Compounds<\/strong><br>\u65e0\u5364\u963b\u71c3\u5316\u5408\u7269<\/td>\n                            <td>LSZH (Low Smoke Zero Halogen)<\/td>\n                            <td>Intumescent char formation, endothermic decomposition<br>\u81a8\u80c0\u578b\u78b3\u5c42\u5f62\u6210\uff0c\u5438\u70ed\u5206\u89e3<\/td>\n                            <td>Passes \u2013 reduced smoke\/toxicity<br>\u901a\u8fc7-\u51cf\u5c11\u70df\u96fe\/\u6bd2\u6027<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>PVC Sheath (some types)<\/strong><br>PVC\u62a4\u5957\uff08\u90e8\u5206\u7c7b\u578b\uff09<\/td>\n                            <td>Polyvinyl Chloride<\/td>\n                            <td>Chlorine release, char formation<br>\u91ca\u653e\u6c2f\u6c14\uff0c\u78b3\u5c42\u5f62\u6210<\/td>\n                            <td>Inherently flame retardant<br>\u56fa\u6709\u963b\u71c3\u6027<\/td>\n                        <\/tr>\n                    <\/tbody>\n                    <tfoot>\n                        <tr>\n                            <td colspan=\"4\">Materials conforming to DIN VDE 0207-20 (EPR insulation) and DIN VDE 0207-21 (thermosetting sheaths).<sup>[6][7]<\/sup><\/td>\n                        <\/tr>\n                    <\/tfoot>\n                <\/table>\n            <\/div>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Comparison: IEC 60332-1 vs. IEC 60332-3 \u5bf9\u6bd4\uff1aIEC 60332-1\u4e0eIEC 60332-3<\/h2>\n            \n            <p>\n                It is important to distinguish between IEC 60332-1 (single cable test) and IEC 60332-3 (bundled cable test). While standard VDE 0250 rubber cables must pass IEC 60332-1, some applications requiring enhanced fire safety may specify IEC 60332-3 compliance, which represents a significantly more demanding test condition.<sup>[2][8]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                \u533a\u5206IEC 60332-1\uff08\u5355\u6839\u7535\u7f06\u6d4b\u8bd5\uff09\u548cIEC 60332-3\uff08\u6210\u675f\u7535\u7f06\u6d4b\u8bd5\uff09\u975e\u5e38\u91cd\u8981\u3002\u867d\u7136\u6807\u51c6VDE 0250\u6a61\u80f6\u7535\u7f06\u5fc5\u987b\u901a\u8fc7IEC 60332-1\uff0c\u4f46\u67d0\u4e9b\u9700\u8981\u589e\u5f3a\u9632\u706b\u5b89\u5168\u7684\u5e94\u7528\u53ef\u80fd\u8981\u6c42\u7b26\u5408IEC 60332-3\uff0c\u8fd9\u4ee3\u8868\u7740\u66f4\u52a0\u4e25\u683c\u7684\u6d4b\u8bd5\u6761\u4ef6\u3002\n            <\/p>\n            \n            <div class=\"data-table-wrapper\">\n                <table class=\"data-table\">\n                    <caption>Table 4: IEC 60332-1 vs. IEC 60332-3 Test Comparison<br><span class=\"cn-note\">\u88684\uff1aIEC 60332-1\u4e0eIEC 60332-3\u6d4b\u8bd5\u5bf9\u6bd4<\/span><\/caption>\n                    <thead>\n                        <tr>\n                            <th scope=\"col\">Parameter<br><span class=\"cn-note\">\u53c2\u6570<\/span><\/th>\n                            <th scope=\"col\">IEC 60332-1-2<br><span class=\"cn-note\">\u5355\u6839\u6d4b\u8bd5<\/span><\/th>\n                            <th scope=\"col\">IEC 60332-3 (Cat. C)<br><span class=\"cn-note\">\u6210\u675f\u6d4b\u8bd5C\u7c7b<\/span><\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td>Test Configuration \u6d4b\u8bd5\u914d\u7f6e<\/td>\n                            <td>Single cable \u5355\u6839\u7535\u7f06<\/td>\n                            <td>Bundled cables on ladder \u68af\u67b6\u4e0a\u6210\u675f\u7535\u7f06<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Specimen Length \u8bd5\u6837\u957f\u5ea6<\/td>\n                            <td>600 mm<\/td>\n                            <td>3,500 mm<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Flame Application Time \u706b\u7130\u65bd\u52a0\u65f6\u95f4<\/td>\n                            <td>60\u2013480 s (diameter dependent)<\/td>\n                            <td>20 minutes (fixed)<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Burner Power \u71c3\u70e7\u5668\u529f\u7387<\/td>\n                            <td>1 kW pre-mixed flame<\/td>\n                            <td>20.5 kW ribbon burner at 750\u00b0C<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Pass Criterion \u2013 Char Limit \u901a\u8fc7\u6807\u51c6-\u78b3\u5316\u9650\u5236<\/td>\n                            <td>\u226550 mm from upper clamp<\/td>\n                            <td>\u22642,500 mm from burner bottom edge<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Air Flow \u6c14\u6d41<\/td>\n                            <td>No forced ventilation<\/td>\n                            <td>5 m\u00b3\/min at 0.9 m\/s<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Typical Application \u5178\u578b\u5e94\u7528<\/td>\n                            <td>General installations \u4e00\u822c\u5b89\u88c5<\/td>\n                            <td>Vertical cable shafts, critical facilities \u5782\u76f4\u7535\u7f06\u4e95\u9053\u3001\u5173\u952e\u8bbe\u65bd<\/td>\n                        <\/tr>\n                    <\/tbody>\n                    <tfoot>\n                        <tr>\n                            <td colspan=\"3\">IEC 60332-3 categories (A, B, C, D) differ by non-metallic material volume required; Category C is most common for industrial cables.<sup>[8]<\/sup><\/td>\n                        <\/tr>\n                    <\/tfoot>\n                <\/table>\n            <\/div>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Related Standards and Cross-References \u76f8\u5173\u6807\u51c6\u548c\u4ea4\u53c9\u5f15\u7528<\/h2>\n            \n            <div class=\"data-table-wrapper\">\n                <table class=\"data-table\">\n                    <caption>Table 5: Standards Framework for VDE 0250 Flame Retardancy<br><span class=\"cn-note\">\u88685\uff1aVDE 0250\u963b\u71c3\u6027\u6807\u51c6\u6846\u67b6<\/span><\/caption>\n                    <thead>\n                        <tr>\n                            <th scope=\"col\">Standard<br><span class=\"cn-note\">\u6807\u51c6<\/span><\/th>\n                            <th scope=\"col\">Title \/ Scope<br><span class=\"cn-note\">\u6807\u9898\/\u8303\u56f4<\/span><\/th>\n                            <th scope=\"col\">Relationship to IEC 60332-1<br><span class=\"cn-note\">\u4e0eIEC 60332-1\u7684\u5173\u7cfb<\/span><\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td><strong>DIN VDE 0250<\/strong><\/td>\n                            <td>Cables, wires and flexible cords for power installations<br>\u7535\u529b\u88c5\u7f6e\u7528\u7535\u7f06\u3001\u7535\u7ebf\u548c\u8f6f\u7ebf<\/td>\n                            <td>References IEC 60332-1 for flame retardancy verification<br>\u5f15\u7528IEC 60332-1\u8fdb\u884c\u963b\u71c3\u6027\u9a8c\u8bc1<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>EN 60332-1-2<\/strong><\/td>\n                            <td>European adoption of IEC 60332-1-2<br>IEC 60332-1-2\u7684\u6b27\u6d32\u91c7\u6807<\/td>\n                            <td>Identical technical content<br>\u6280\u672f\u5185\u5bb9\u76f8\u540c<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>BS 4066-1<\/strong><\/td>\n                            <td>British Standard for single cable flame test<br>\u5355\u6839\u7535\u7f06\u706b\u7130\u6d4b\u8bd5\u82f1\u56fd\u6807\u51c6<\/td>\n                            <td>Technically equivalent to IEC 60332-1<br>\u6280\u672f\u4e0a\u7b49\u540c\u4e8eIEC 60332-1<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>EN 50575<\/strong><\/td>\n                            <td>EU CPR (Construction Products Regulation) for cables<br>\u7535\u7f06\u6b27\u76df\u5efa\u7b51\u4ea7\u54c1\u6cd5\u89c4<\/td>\n                            <td>Uses IEC 60332-1-2 as basis for Euroclass ratings<br>\u4ee5IEC 60332-1-2\u4e3a\u6b27\u6d32\u7b49\u7ea7\u8bc4\u5b9a\u57fa\u7840<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>IEC 60332-1-1<\/strong><\/td>\n                            <td>Test apparatus specification<br>\u6d4b\u8bd5\u8bbe\u5907\u89c4\u8303<\/td>\n                            <td>Defines equipment for IEC 60332-1-2 procedure<br>\u5b9a\u4e49IEC 60332-1-2\u7a0b\u5e8f\u7684\u8bbe\u5907<\/td>\n                        <\/tr>\n                        <tr>\n                            <td><strong>DIN VDE 0472 Part 804<\/strong><\/td>\n                            <td>German cable test methods \u2013 Flame test<br>\u5fb7\u56fd\u7535\u7f06\u6d4b\u8bd5\u65b9\u6cd5-\u706b\u7130\u6d4b\u8bd5<\/td>\n                            <td>National implementation referencing IEC methodology<br>\u53c2\u7167IEC\u65b9\u6cd5\u7684\u56fd\u5bb6\u5b9e\u65bd<\/td>\n                        <\/tr>\n                    <\/tbody>\n                <\/table>\n            <\/div>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Practical Implications for Cable Selection \u7535\u7f06\u9009\u62e9\u7684\u5b9e\u9645\u610f\u4e49<\/h2>\n            \n            <h3>When IEC 60332-1 Compliance is Sufficient \u4f55\u65f6IEC 60332-1\u5408\u89c4\u6027\u8db3\u591f<\/h3>\n            <p>\n                For most general industrial applications where cables are installed individually or in small groups with adequate spacing, IEC 60332-1 compliance provides adequate fire safety assurance. This includes typical VDE 0250 applications such as portable equipment connections, machine tool wiring, construction site power distribution, and general industrial machinery connections.<sup>[5][9]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                \u5bf9\u4e8e\u5927\u591a\u6570\u7535\u7f06\u5355\u72ec\u5b89\u88c5\u6216\u5c0f\u7fa4\u7ec4\u5b89\u88c5\u4e14\u95f4\u8ddd\u5145\u8db3\u7684\u4e00\u822c\u5de5\u4e1a\u5e94\u7528\uff0cIEC 60332-1\u5408\u89c4\u6027\u63d0\u4f9b\u5145\u5206\u7684\u9632\u706b\u5b89\u5168\u4fdd\u8bc1\u3002\u8fd9\u5305\u62ec\u5178\u578b\u7684VDE 0250\u5e94\u7528\uff0c\u5982\u4fbf\u643a\u5f0f\u8bbe\u5907\u8fde\u63a5\u3001\u673a\u5e8a\u5e03\u7ebf\u3001\u5efa\u7b51\u5de5\u5730\u914d\u7535\u548c\u4e00\u822c\u5de5\u4e1a\u673a\u68b0\u8fde\u63a5\u3002\n            <\/p>\n            \n            <h3>When Enhanced Flame Retardancy is Required \u4f55\u65f6\u9700\u8981\u589e\u5f3a\u963b\u71c3\u6027<\/h3>\n            <p>\n                The IEC 60332-1 standard explicitly notes that passing this single-cable test does not guarantee similar behavior when cables are installed in bunches. For installations with high fire propagation risk, such as vertical cable shafts, tunnels, power plants, or petrochemical facilities, IEC 60332-3 bundle testing and potentially additional requirements (low smoke, halogen-free per IEC 60754 and IEC 61034) should be specified.<sup>[1][8]<\/sup>\n            <\/p>\n            <p class=\"cn-note\">\n                IEC 60332-1\u6807\u51c6\u660e\u786e\u6307\u51fa\uff0c\u901a\u8fc7\u6b64\u5355\u6839\u7535\u7f06\u6d4b\u8bd5\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u7535\u7f06\u6210\u675f\u5b89\u88c5\u65f6\u5177\u6709\u7c7b\u4f3c\u8868\u73b0\u3002\u5bf9\u4e8e\u706b\u707e\u8513\u5ef6\u98ce\u9669\u9ad8\u7684\u5b89\u88c5\uff0c\u5982\u5782\u76f4\u7535\u7f06\u4e95\u9053\u3001\u96a7\u9053\u3001\u53d1\u7535\u5382\u6216\u77f3\u5316\u8bbe\u65bd\uff0c\u5e94\u89c4\u5b9aIEC 60332-3\u6210\u675f\u6d4b\u8bd5\uff0c\u5e76\u53ef\u80fd\u6709\u989d\u5916\u8981\u6c42\uff08\u4f4e\u70df\u3001\u7b26\u5408IEC 60754\u548cIEC 61034\u7684\u65e0\u5364\uff09\u3002\n            <\/p>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Test Equipment Specifications \u6d4b\u8bd5\u8bbe\u5907\u89c4\u683c<\/h2>\n            \n            <div class=\"data-table-wrapper\">\n                <table class=\"data-table\">\n                    <caption>Table 6: IEC 60332-1 Test Apparatus Requirements (per IEC 60332-1-1)<br><span class=\"cn-note\">\u88686\uff1aIEC 60332-1\u6d4b\u8bd5\u8bbe\u5907\u8981\u6c42\uff08\u4f9d\u636eIEC 60332-1-1\uff09<\/span><\/caption>\n                    <thead>\n                        <tr>\n                            <th scope=\"col\">Component<br><span class=\"cn-note\">\u7ec4\u4ef6<\/span><\/th>\n                            <th scope=\"col\">Specification<br><span class=\"cn-note\">\u89c4\u683c<\/span><\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td>Metal Enclosure \u91d1\u5c5e\u7bb1\u4f53<\/td>\n                            <td>Internal dimensions: 300mm (W) \u00d7 450mm (D) \u00d7 1200mm (H) minimum; sheet steel \u22650.5mm thick<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Burner Type \u71c3\u70e7\u5668\u7c7b\u578b<\/td>\n                            <td>Tube burner with 1 kW thermal output; propane\/air pre-mixed flame<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Flame Characteristics \u706b\u7130\u7279\u6027<\/td>\n                            <td>Inner blue cone height: 50\u201360mm; Overall flame height: 170\u2013190mm<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Thermocouple Verification \u70ed\u7535\u5076\u9a8c\u8bc1<\/td>\n                            <td>Time from 100\u00b0C to 700\u00b0C: 40\u201350 seconds (flame calibration check)<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Gas Flow (Propane) \u6c14\u4f53\u6d41\u91cf\uff08\u4e19\u70f7\uff09<\/td>\n                            <td>\u2265650 mL\/min (adjusted for 1 kW output)<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Air Flow \u7a7a\u6c14\u6d41\u91cf<\/td>\n                            <td>\u226510 L\/min (for pre-mixed combustion)<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Ambient Conditions \u73af\u5883\u6761\u4ef6<\/td>\n                            <td>Temperature: 23\u00b0C \u00b110\u00b0C; No forced ventilation during test<\/td>\n                        <\/tr>\n                    <\/tbody>\n                    <tfoot>\n                        <tr>\n                            <td colspan=\"2\">Equipment must be calibrated per IEC 60332-1-1 before each test series.<sup>[3][4]<\/sup><\/td>\n                        <\/tr>\n                    <\/tfoot>\n                <\/table>\n            <\/div>\n        <\/section>\n        \n        <section class=\"content-section\">\n            <h2>Conclusion \u7ed3\u8bba<\/h2>\n            <p>\n                The IEC 60332-1 flame retardancy requirement represents a fundamental fire safety baseline for VDE 0250 rubber cables. This vertical single-cable flame propagation test ensures that cables will self-extinguish and limit fire spread when exposed to a defined ignition source. For VDE 0250 compliant cables manufactured with appropriate flame-retardant compounds such as chloroprene rubber or FR-additive enhanced EPR, passing IEC 60332-1-2 is an expected performance characteristic that provides essential protection in general industrial installations.\n            <\/p>\n            <p class=\"cn-note\">\n                IEC 60332-1\u963b\u71c3\u6027\u8981\u6c42\u4ee3\u8868\u4e86VDE 0250\u6a61\u80f6\u7535\u7f06\u7684\u57fa\u672c\u9632\u706b\u5b89\u5168\u57fa\u7ebf\u3002\u8fd9\u79cd\u5782\u76f4\u5355\u6839\u7535\u7f06\u706b\u7130\u8513\u5ef6\u6d4b\u8bd5\u786e\u4fdd\u7535\u7f06\u5728\u66b4\u9732\u4e8e\u89c4\u5b9a\u70b9\u706b\u6e90\u65f6\u80fd\u591f\u81ea\u7184\u5e76\u9650\u5236\u706b\u52bf\u8513\u5ef6\u3002\u5bf9\u4e8e\u91c7\u7528\u9002\u5f53\u963b\u71c3\u5316\u5408\u7269\uff08\u5982\u6c2f\u4e01\u6a61\u80f6\u6216FR\u6dfb\u52a0\u5242\u589e\u5f3a\u7684EPR\uff09\u5236\u9020\u7684VDE 0250\u5408\u89c4\u7535\u7f06\uff0c\u901a\u8fc7IEC 60332-1-2\u662f\u9884\u671f\u7684\u6027\u80fd\u7279\u6027\uff0c\u4e3a\u4e00\u822c\u5de5\u4e1a\u5b89\u88c5\u63d0\u4f9b\u57fa\u672c\u4fdd\u62a4\u3002\n            <\/p>\n        <\/section>\n        \n        <section class=\"references-section\">\n            <h2>References &amp; Authoritative Sources \u53c2\u8003\u6587\u732e\u53ca\u6743\u5a01\u6765\u6e90<\/h2>\n            <ol class=\"reference-list\">\n                <li>\n                    <strong>IEC 60332-1-2:2004+AMD1:2015<\/strong> \u2013 Tests on electric and optical fibre cables under fire conditions \u2013 Part 1-2: Test for vertical flame propagation for a single insulated wire or cable \u2013 Procedure for 1 kW pre-mixed flame. International Electrotechnical Commission.\n                    <a href=\"https:\/\/webstore.iec.ch\/publication\/1475\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/webstore.iec.ch\/publication\/1475<\/a>\n                <\/li>\n                <li>\n                    <strong>IEC 60332-1-1:2004+AMD1:2015<\/strong> \u2013 Tests on electric and optical fibre cables under fire conditions \u2013 Part 1-1: Test for vertical flame propagation for a single insulated wire or cable \u2013 Apparatus. International Electrotechnical Commission.\n                    <a href=\"https:\/\/webstore.iec.ch\/publication\/1474\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/webstore.iec.ch\/publication\/1474<\/a>\n                <\/li>\n                <li>\n                    <strong>BS EN 60332-1-2:2004+A12:2020<\/strong> \u2013 Tests on electric and optical fibre cables under fire conditions \u2013 Test for vertical flame propagation for a single insulated wire or cable \u2013 Procedure for 1 kW pre-mixed flame. British Standards Institution.\n                    <a href=\"https:\/\/www.en-standard.eu\/bs-en-60332-1-2-2004-a12-2020\/\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/www.en-standard.eu\/bs-en-60332-1-2-2004-a12-2020\/<\/a>\n                <\/li>\n                <li>\n                    <strong>IEC 60811-203<\/strong> \u2013 Electric and optical fibre cables \u2013 Test methods for non-metallic materials \u2013 Part 203: General tests \u2013 Measurement of overall dimensions. International Electrotechnical Commission.\n                    <a href=\"https:\/\/webstore.iec.ch\/publication\/3554\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/webstore.iec.ch\/publication\/3554<\/a>\n                <\/li>\n                <li>\n                    <strong>DIN VDE 0250-1:1981<\/strong> \u2013 Specifications for cables, wires and flexible cords for power installations \u2013 General requirements. VDE Verband der Elektrotechnik.\n                    <a href=\"https:\/\/www.vde.com\/en\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/www.vde.com\/en<\/a>\n                <\/li>\n                <li>\n                    <strong>DIN VDE 0250-812<\/strong> \u2013 Rubber insulated flexible cables up to and including 450\/750V (NSSH\u00d6U). VDE Association \/ DKE German Commission for Electrical, Electronic &#038; Information Technologies.\n                    <a href=\"https:\/\/www.dke.de\/en\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/www.dke.de\/en<\/a>\n                <\/li>\n                <li>\n                    <strong>DIN VDE 0207-20<\/strong> \u2013 Ethylene-propylene rubber insulation compounds. VDE Association.\n                    <a href=\"https:\/\/www.beuth.de\/\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/www.beuth.de\/<\/a>\n                <\/li>\n                <li>\n                    <strong>IEC 60332-3-22:2018<\/strong> \u2013 Tests on electric and optical fibre cables under fire conditions \u2013 Part 3-22: Test for vertical flame spread of vertically-mounted bunched wires or cables \u2013 Category A. International Electrotechnical Commission.\n                    <a href=\"https:\/\/webstore.iec.ch\/publication\/63048\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/webstore.iec.ch\/publication\/63048<\/a>\n                <\/li>\n                <li>\n                    <strong>EN 50575:2014+A1:2016<\/strong> \u2013 Power, control and communication cables \u2013 Cables for general applications in construction works subject to reaction to fire requirements. CENELEC.\n                    <a href=\"https:\/\/www.cenelec.eu\/\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/www.cenelec.eu\/<\/a>\n                <\/li>\n                <li>\n                    <strong>IEC 60754-1<\/strong> \u2013 Test on gases evolved during combustion of materials from cables \u2013 Part 1: Determination of the halogen acid gas content. International Electrotechnical Commission.\n                    <a href=\"https:\/\/webstore.iec.ch\/publication\/3401\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/webstore.iec.ch\/publication\/3401<\/a>\n                <\/li>\n                <li>\n                    <strong>IEC 61034-2<\/strong> \u2013 Measurement of smoke density of cables burning under defined conditions \u2013 Part 2: Test procedure and requirements. International Electrotechnical Commission.\n                    <a href=\"https:\/\/webstore.iec.ch\/publication\/4339\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/webstore.iec.ch\/publication\/4339<\/a>\n                <\/li>\n            <\/ol>\n        <\/section>\n        \n        <aside class=\"contact-section\">\n            <h2>Contact Anhui Feichun Special Cable Co., Ltd. \u8054\u7cfb\u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8<\/h2>\n            <div class=\"contact-grid\">\n                <div class=\"contact-item\">\n                    <strong>WhatsApp \u5fae\u4fe1\/WhatsApp<\/strong>\n                    <a href=\"https:\/\/wa.me\/8613855123218\" rel=\"nofollow noopener\" target=\"_blank\">+86 138 5512 3218<\/a>\n                <\/div>\n                <div class=\"contact-item\">\n                    <strong>Technical Support \u6280\u672f\u652f\u6301<\/strong>\n                    <a href=\"mailto:tech@feichuncables.com\" rel=\"nofollow noopener\">tech@feichuncables.com<\/a>\n                <\/div>\n                <div class=\"contact-item\">\n                    <strong>Sales \u2013 Zihao Yang \u9500\u552e-\u6768\u5b50\u6d69<\/strong>\n                    <a href=\"mailto:zihao.yang@feichuncables.com\" rel=\"nofollow noopener\">zihao.yang@feichuncables.com<\/a>\n                <\/div>\n                <div class=\"contact-item\">\n                    <strong>Sales \u2013 Ziyu Huang \u9500\u552e-\u9ec4\u5b50\u94b0<\/strong>\n                    <a href=\"mailto:ziyu.huang@feichuncables.com\" rel=\"nofollow noopener\">ziyu.huang@feichuncables.com<\/a>\n                <\/div>\n            <\/div>\n        <\/aside>\n        \n        <footer style=\"margin-top: 2rem; padding-top: 1rem; border-top: 1px solid currentColor; opacity: 0.7; font-size: 0.85rem;\">\n            <p>\u00a9 2025 Anhui Feichun Special Cable Co., Ltd. \u5b89\u5fbd\u98de\u7eaf\u7279\u79cd\u7535\u7f06\u6709\u9650\u516c\u53f8. Technical content for informational purposes. Specifications subject to applicable standards and verification.<\/p>\n        <\/footer>\n        \n    <\/article>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"VDE 0250 rubber cables are required to comply with IEC 60332-1 flame retardancy testing, which evaluates the vertical flame propagation characteristics of single insulated wires and cables under fire conditions. This standard establishes that the cable must self-extinguish after flame removal and the charred zone must not extend within 50mm of the upper mounting clamp. Most VDE 0250 rubber cables constructed with flame-retardant materials such as chloroprene rubber (CR\/Neoprene) or compounds with flame-retardant additives are designed to pass this critical fire safety test.[1][2]\nVDE 0250\u6a61\u80f6\u7535\u7f06\u5fc5\u987b\u7b26\u5408IEC 60332-1\u963b\u71c3\u6d4b\u8bd5\u8981\u6c42\uff0c\u8be5\u6d4b\u8bd5\u8bc4\u4f30\u5355\u6839\u7edd\u7f18\u7535\u7ebf\u7535\u7f06\u5728\u706b\u707e\u6761\u4ef6\u4e0b\u7684\u5782\u76f4\u706b\u7130\u8513\u5ef6\u7279\u6027\u3002\u8be5\u6807\u51c6\u89c4\u5b9a\u7535\u7f06\u5728\u79fb\u9664\u706b\u7130\u540e\u5fc5\u987b\u81ea\u7184\uff0c\u4e14\u78b3\u5316\u533a\u57df\u4e0d\u5f97\u5ef6\u4f38\u81f3\u4e0a\u56fa\u5b9a\u5939\u517750mm\u8303\u56f4\u5185\u3002\u5927\u591a\u6570\u91c7\u7528\u963b\u71c3\u6750\u6599\uff08\u5982\u6c2f\u4e01\u6a61\u80f6\u6216\u6dfb\u52a0\u963b\u71c3\u5242\u7684\u5316\u5408\u7269\uff09\u5236\u9020\u7684VDE 0250\u6a61\u80f6\u7535\u7f06\u5747\u8bbe\u8ba1\u4e3a\u901a\u8fc7\u6b64\u5173\u952e\u9632\u706b\u5b89\u5168\u6d4b\u8bd5\u3002","protected":false},"author":1,"featured_media":4927,"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":[66,94,56],"tags":[32830,32799,32785,32837,32811,32797,32834,32840,32841,32835,32827,32843,32813,32826,466,32782,32793,32787,32842,32794,798,32810,32789,32795,7037,32814,12137,32836,32790,24482,32821,32828,32818,32825,32783,32822,32819,32796,32791,8995,32802,32803,32804,32839,32806,14611,32805,32807,32808,32809,32812,32815,10171,32829,32781,32817,32788,32792,32832,32823,32800,32786,32820,1311,8217,32784,32824,32816,32798,25507,32831,32014,31668,32833,32838,32844],"class_list":["post-4925","post","type-post","status-publish","format-standard","has-post-thumbnail","category-common-problems-encountered-in-cable-applications","category-din-vde-0250-mining-cable","category-reeling-cable","tag-1kw-pre-mixed-flame-test","tag-airport-cable-fire-rating","tag-automation-cable-fire-performance","tag-bs-4066-1-equivalent","tag-bs-en-60332-1-22004a122020","tag-building-cable-fire-classification","tag-cable-char-height-test","tag-cable-combustion-test","tag-cable-fire-classification","tag-cable-fire-performance","tag-cable-fire-rating","tag-cable-fire-test-laboratory","tag-cable-fire-test-standard-comparison","tag-cable-flame-application-time","tag-chloroprene-rubber-cable","tag-cnc-machine-cable-flame-retardant","tag-commercial-building-cable-fire","tag-conveyor-cable-fire-safety","tag-cpr-cable-regulation","tag-data-center-cable-fire-safety","tag-din-vde-0250-812","tag-din-vde-0472-part-804","tag-elevator-cable-flame-test","tag-emergency-lighting-cable-fire-rating","tag-en-50575-cable","tag-en-505752014a12016","tag-en-60332-1-2-cable","tag-epr-flame-retardant-cable","tag-escalator-cable-fire-rating","tag-euroclass-cable-rating","tag-flame-retardant-cable-standard","tag-flame-retardant-insulation","tag-flame-retardant-vs-fire-resistant-cable","tag-flame-spread-test-cable","tag-frequency-converter-cable-flame-test","tag-h07rn-f-flame-test","tag-halogen-free-cable-iec-60332","tag-hospital-cable-flame-retardant","tag-hvac-cable-flame-retardant","tag-iec-60332-1-flame-test","tag-iec-60332-1-1-apparatus","tag-iec-60332-1-2-procedure","tag-iec-60332-1-3-flaming-droplets","tag-iec-60332-1","tag-iec-60332-2-2-small-cable-test","tag-iec-60332-3-22-category-a","tag-iec-60332-3-23-category-b","tag-iec-60332-3-24-category-c","tag-iec-60332-3-25-category-d","tag-iec-60754-1-halogen-acid","tag-iec-60754-2-ph-conductivity","tag-iec-60811-203-diameter-measurement","tag-iec-61034-2-smoke-density","tag-industrial-cable-fire-safety","tag-industrial-machinery-cable-fire-safety","tag-lszh-cable-fire-rating","tag-material-handling-cable-flame-retardant","tag-metro-station-cable-flame-test","tag-neoprene-cable-flame-retardant","tag-nsshou-flame-retardant","tag-residential-cable-fire-safety","tag-robot-cable-fire-classification","tag-rubber-cable-fire-safety","tag-rubber-sheathed-flexible-cable","tag-self-extinguishing-cable-2","tag-servo-motor-cable-fire-rating","tag-single-cable-flame-test","tag-ul-1581-vw-1-equivalent","tag-underground-parking-cable-flame","tag-vde-0250-rubber-cable","tag-vde-0250","tag-vde-cable-certification","tag-vertical-flame-propagation-test","tag-32833","tag-32838","tag-32844","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/4925","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=4925"}],"version-history":[{"count":1,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/4925\/revisions"}],"predecessor-version":[{"id":4928,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/4925\/revisions\/4928"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/4927"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=4925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=4925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=4925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}