{"id":1581,"date":"2026-05-08T00:00:00","date_gmt":"2026-05-08T00:00:00","guid":{"rendered":"http:\/\/yieou.com\/?post_type=products&#038;p=1581"},"modified":"2026-09-10T05:23:44","modified_gmt":"2026-09-10T05:23:44","slug":"24kv-integrated-insulator","status":"publish","type":"products","link":"https:\/\/yieou.com\/ja\/product\/24kv-integrated-insulator\/","title":{"rendered":"24kV Integrated Insulator"},"content":{"rendered":"<p class=\"wp-block-paragraph\">24kV Integrated Insulator<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u88fd\u54c1\u6982\u8981<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/yieou.com\/ja\/products\/\" data-type=\"link\" data-id=\"https:\/\/yieou.com\/products\/\">24kV\u4e00\u4f53\u578b\u788d\u5b50<\/a> 24kV\u306e\u4e2d\u96fb\u5727\u7528\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u305f\u3001\u30b3\u30a2\u7d76\u7e01\u90e8\u54c1\u3067\u3059\u3002 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Switchgear\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Switchgear\" target=\"_blank\" rel=\"noopener\">switchgear<\/a> \u304a\u3088\u3073\u95a2\u9023\u3059\u308b\u96fb\u529b\u6a5f\u5668\u3002\u4e00\u4f53\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u3067\u88fd\u9020\u3055\u308c\u3001\u96fb\u6c17\u7d76\u7e01\u3001\u6a5f\u68b0\u7684\u30b5\u30dd\u30fc\u30c8\u3001\u304a\u3088\u3073\u7d76\u7e01\/\u4fdd\u8b77\u6a5f\u80fd\u3092\u517c\u306d\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u5c4b\u5185\u7528\u4e2d\u96fb\u5727\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u96fb\u529b\u6a5f\u5668\u306e\u5b89\u5168\u3067\u5b89\u5b9a\u3057\u305f\u904b\u7528\u3092\u4fdd\u8a3c\u3059\u308b\u91cd\u8981\u306a\u7d76\u7e01\u90e8\u54c1\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u88fd\u54c1\u306e\u7279\u5fb4<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">\u512a\u308c\u305f\u96fb\u6c17\u7684\u6027\u80fd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Rated insulation voltage is matched to 24kV medium-voltage systems with high dielectric strength, capable of withstanding the system rated voltage, lightning impulse overvoltage, and switching overvoltage, effectively preventing surface flashover, breakdown, and other insulation failures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Manufactured from high-quality epoxy resin (or epoxy glass fiber reinforced plastic), the material exhibits low dielectric loss and high insulation resistance, with no insulation aging or performance degradation during long-term operation, meeting the requirements of GB\/T 1408.1 and other national standards.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The shed profile design optimizes electric field distribution, increases creepage distance, and effectively suppresses the risk of insulation failure in contaminated or humid environments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reliable Mechanical Performance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The monolithic integrated structure design provides high mechanical strength and excellent impact resistance, capable of withstanding the mechanical and installation stresses imposed by busbars and contacts, with no risk of cracking or deformation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Excellent vibration and seismic resistance ensures the mechanical stability required for long-term operation of power equipment and accommodates the complex installation conditions within switchgear enclosures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Brass inserts are embedded at the top with high-precision threading, providing a secure connection capable of sustaining long-term busbar clamping forces without loosening or pullout.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u512a\u308c\u305f\u74b0\u5883\u9069\u5fdc\u6027<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The material offers weathering resistance and corrosion resistance, capable of withstanding indoor temperature and humidity variations and mildly contaminated environments without cracking, chalking, or aging.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Excellent flame retardancy compliant with UL94 V-0 flame retardant standard \u2014 the material does not ignite or sustain combustion when exposed to an open flame, enhancing fire safety of the equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Moisture resistance, mold resistance, and salt spray resistance meet applicable standards, making the product suitable for indoor power distribution environments across different regions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Structural and Process Advantages<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The integrated monolithic design reduces assembly steps, improves installation efficiency, and eliminates the sealing and insulation risks associated with multi-piece structures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vacuum epoxy casting process ensures the product is free of voids and defects, with uniform and consistent internal insulation performance and high quality stability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The open-bottom structure accommodates the installation requirements of switchgear busbar compartments and contact boxes, offering strong compatibility with enclosures and busbars for easy installation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30a2\u6280\u8853\u30d1\u30e9\u30e1\u30fc\u30bf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Note: The above parameters are for standard model specifications. Custom parameters (e.g., higher withstand current, special creepage distance, etc.) are available upon customer request.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b9\u30b3\u30fc\u30d7<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">\u9069\u7528\u30b7\u30ca\u30ea\u30aa<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">24kV indoor metal-clad withdrawable switchgear (KYN28A-24 and similar models)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">24kV indoor fixed-mounted switchgear and ring main units<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Busbar support and contact insulation isolation for 24kV medium-voltage distribution equipment<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Internal insulating components for 24kV compact substations and switching stations<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Insulation support and isolation for other 24kV medium-voltage power equipment<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Applicable Systems<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Three-phase AC 50Hz, 24kV medium-voltage power distribution systems<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Systems with unearthed neutral, arc suppression coil (Petersen coil) earthed neutral, or resistance-earthed neutral<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Power equipment in indoor power distribution environments<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u52d5\u4f5c\u6761\u4ef6<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u5e38\u904b\u8ee2\u6761\u4ef6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Altitude: \u22641000m (high-altitude customization available; insulation parameters corrected per GB\/T 11022)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ambient temperature: -5\u00b0C ~ +40\u00b0C (daily average temperature \u226435\u00b0C)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Relative humidity: daily average relative humidity \u226495%, monthly average relative humidity \u226490%, no condensation<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Environmental conditions: indoor installation, no severe contamination, no corrosive gases, no flammable or explosive media, no intense vibration or shock<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mounting orientation: vertical installation, tilt angle \u22645\u00b0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7279\u5225\u904b\u7528\u6761\u4ef6\uff08\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u8981\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u5730\u74b0\u5883\uff08\u6a19\u9ad81000m\u8d85\uff09\uff1a\u7d76\u7e01\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u6a19\u9ad8\u306b\u5408\u308f\u305b\u3066\u88dc\u6b63\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u6cbf\u9762\u8ddd\u96e2\u3068\u7d76\u7e01\u8010\u529b\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">High\/low temperature environments (outside the -5\u00b0C ~ +40\u00b0C range): custom materials for high\/low temperature resistance<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Heavily contaminated environments: increased creepage distance with anti-pollution shed profile design<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Special vibration\/shock environments: enhanced mechanical strength design<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u7f6e\u304a\u3088\u3073\u4fdd\u5b88\u8981\u4ef6<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u8981\u4ef6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Inspect the product appearance before installation: no cracks, no voids, no damage, no loose inserts<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Install strictly according to the switchgear assembly drawings to ensure vertical mounting with a tilt angle not exceeding 5\u00b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When connecting busbars, tighten insert bolts to the specified torque to avoid cracking the insulator due to excessive force<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Avoid striking or knocking the insulator during installation to prevent insulation damage<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Clean surface dust and foreign matter after installation to ensure the insulating surface is clean<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fdd\u5b88\u8981\u4ef6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Regular inspection: check the insulator surface for contamination, cracks, and discharge marks, and check inserts for looseness<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cleaning and maintenance: wipe the surface with a dry cloth; the use of corrosive cleaning agents is strictly prohibited<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Insulation testing: conduct periodic insulation resistance and withstand voltage tests to verify that insulation performance meets requirements<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Replacement criteria: if cracks, puncture, or severe contamination that cannot be cleaned is found, replace the product immediately<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9069\u7528\u898f\u683c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GB\/T 1408.1 \u2014 Methods of Test for Electric Strength of Insulating Materials \u2014 Part 1: Tests at Power Frequencies<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GB\/T 11022 \u2014 Common Specifications for High-Voltage Switchgear and Controlgear Standards<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GB\/T 4109 \u2014 Insulating Bushings for Alternating Voltages above 1000V<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IEC 60660 \u2014 Insulators for High-Voltage Switchgear and Controlgear<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JB\/T 10685 \u2014 Insulating Parts for High-Voltage AC Switchgear<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ce8\u610f\u4e8b\u9805<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This product is intended exclusively for indoor 24kV medium-voltage systems; operation beyond rated voltage or specified conditions is strictly prohibited<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Installation and maintenance must be performed by qualified electrical personnel in strict compliance with electrical safety regulations<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During transport and storage, avoid impact, moisture, and exposure to high temperatures; the storage environment must be dry and well-ventilated<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If the product shows visible damage or fails to meet insulation performance requirements, it must not be put into service<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For customized products, the bilateral technical agreement shall prevail; parameters in this manual are for reference for standard models only<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u66f8\u6ce8\u8a18<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This manual is the standard product technical manual for the 24kV integrated insulator. Parameters and content may be adjusted according to the customer&#8217;s specific model and customization requirements. All technical specifications are subject to the product factory inspection report.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ed8\u9332\uff1a\u88fd\u54c1\u6982\u8981\u56f3<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30ab\u30c6\u30b4\u30ea<\/th><th>\u6280\u8853\u4ed5\u69d8<\/th><th>\u5099\u8003<\/th><\/tr><\/thead><tbody><tr><td>\u5b9a\u683c\u96fb\u5727<\/td><td>24kV<\/td><td>Matched to 24kV medium-voltage distribution systems<\/td><\/tr><tr><td>\u5b9a\u683c\u5468\u6ce2\u6570<\/td><td>50\u30d8\u30eb\u30c4<\/td><td>Compliant with domestic power frequency standard<\/td><\/tr><tr><td>\u5b9a\u683c\u96f7\u6483\u30a4\u30f3\u30d1\u30eb\u30b9\u8010\u96fb\u5727<\/td><td>125kV\uff08\u30d4\u30fc\u30af\uff09<\/td><td>Phase-to-earth \/ phase-to-phase<\/td><\/tr><tr><td>Rated Power Frequency Withstand Voltage<\/td><td>42kV (1 min)<\/td><td>Phase-to-earth \/ phase-to-phase<\/td><\/tr><tr><td>\u6cbf\u9762\u8ddd\u96e2<\/td><td>\u2265450mm<\/td><td>Meets pollution severity class II and above<\/td><\/tr><tr><td>\u7d76\u7e01\u62b5\u6297<\/td><td>\u22651\u00d710\u00b9\u00b2\u03a9<\/td><td>Under normal conditions<\/td><\/tr><tr><td>\u8a98\u96fb\u6b63\u63a5\uff08tan \u03b4\uff09<\/td><td>\u22640.005<\/td><td>At power frequency<\/td><\/tr><tr><td>Rated Short-Time Withstand Current<\/td><td>25kA\/4s (customizable)<\/td><td>Matched to switchgear short-circuit current requirements<\/td><\/tr><tr><td>Rated Peak Withstand Current<\/td><td>63kA (customizable) |<\/td><\/tr><tr><td>Flame Retardancy Class<\/td><td>UL94 V-0 |<\/td><\/tr><tr><td>\u52d5\u4f5c\u6e29\u5ea6\u7bc4\u56f2<\/td><td>-40\u2103\uff5e+85\u2103<\/td><td>Indoor environment<\/td><\/tr><tr><td>\u76f8\u5bfe\u6e7f\u5ea6<\/td><td>\u226495% (25\u2103\u306b\u3066)<\/td><td>No condensation<\/td><\/tr><tr><td>\u7d20\u6750<\/td><td>Epoxy Resin (EP) \/ Epoxy Glass Fiber Reinforced Plastic<\/td><td>Customizable<\/td><\/tr><tr><td>Insert Material<\/td><td>Brass (tin-plated or silver-plated optional) |<\/td><\/tr><tr><td>\u4fdd\u8b77\u7b49\u7d1a<\/td><td>IP20<\/td><td>Suitable for indoor switchgear<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"360\" height=\"360\" src=\"https:\/\/yieou.com\/wp-content\/uploads\/2026\/05\/24kV-Integrated-Insulator.webp\" alt=\"24kV Integrated Insulator\" class=\"wp-image-2856\" srcset=\"https:\/\/yieou.com\/wp-content\/uploads\/2026\/05\/24kV-Integrated-Insulator.webp 360w, https:\/\/yieou.com\/wp-content\/uploads\/2026\/05\/24kV-Integrated-Insulator-300x300.webp 300w, https:\/\/yieou.com\/wp-content\/uploads\/2026\/05\/24kV-Integrated-Insulator-150x150.webp 150w, https:\/\/yieou.com\/wp-content\/uploads\/2026\/05\/24kV-Integrated-Insulator-12x12.webp 12w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/figure>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>24kV Integrated Insulator Product Overview The 24kV integrated insulator is a core insulating component specifically designed for 24kV medium-voltage switchgear [&hellip;]<\/p>\n","protected":false},"featured_media":2856,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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