{"id":673,"date":"2026-01-26T06:35:11","date_gmt":"2026-01-26T06:35:11","guid":{"rendered":"http:\/\/yieou.com\/?post_type=products&p=673"},"modified":"2026-09-16T02:07:41","modified_gmt":"2026-09-16T02:07:41","slug":"tg3-35q-260x260x450-bushing","status":"publish","type":"products","link":"https:\/\/yieou.com\/zh\/product\/tg3-35q-260x260x450-bushing\/","title":{"rendered":"TG3-35Q\/260x260x450 \u7edd\u7f18\u5b50 (\u5de5\u9891\u8010\u538b\uff1a95kV\/1min\uff1b\u5c40\u90e8\u653e\u7535\uff1a\u22645pC @ 40.5kV)"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u8ff0<\/h3>\n\n\n\n

TG3-35Q\/260\u00d7260\u00d7450 \u5899\u58c1\u5957\u7ba1<\/a> \u8fd9\u662f\u4e00\u79cd\u7528\u4e8e35\u5343\u4f0f\u9ad8\u538b\u7535\u529b\u7cfb\u7edf\u7684\u73af\u6c27\u6811\u8102\u7edd\u7f18\u90e8\u4ef6\u3002<\/p>\n\n\n\n

It allows live conductors, such as busbars and copper bars, to pass safely through walls, partitions, switchgear panels, and other grounded structures. The bushing provides electrical insulation, mechanical support, and a stable passage for conductor connections, helping ensure the safe and reliable operation of high-voltage power systems.<\/p>\n\n\n\n

\u9002\u7528\u4e8e\u53d1\u7535\u5382\u3001\u53d8\u7535\u7ad9\u3001\u9ad8\u538b switchgear<\/a>\u914d\u7535\u5ba4\u53ca\u5176\u4ed6\u4e2d\u538b\u7535\u6c14\u88c5\u7f6e\u3002<\/p>\n\n\n\n

\u6280\u672f\u89c4\u683c<\/h3>\n\n\n\n
\u53c2\u6570<\/th>\u89c4\u683c<\/th><\/tr><\/thead>
\u4ea7\u54c1\u578b\u53f7<\/td>TG3-35Q\/260\u00d7260\u00d7450<\/td><\/tr>
\u989d\u5b9a\u7535\u538b<\/td>40.5 kV, suitable for 35 kV systems<\/td><\/tr>
\u989d\u5b9a\u9891\u7387<\/td>15\u201360 Hz<\/td><\/tr>
\u989d\u5b9a\u7535\u6d41<\/td>630\u20133150 A, customizable upon request<\/td><\/tr>
\u603b\u4f53\u5c3a\u5bf8<\/td>260 \u00d7 260 \u00d7 450 mm<\/td><\/tr>
Mounting Flange Size<\/td>260 \u00d7 260 mm<\/td><\/tr>
\u6750\u6599<\/td>Epoxy resin manufactured by APG process<\/td><\/tr>
Colour<\/td>Red<\/td><\/tr>
\u5de5\u9891\u8010\u538b<\/td>95 kV for 1 minute under dry conditions<\/td><\/tr>
\u96f7\u7535\u51b2\u51fb\u8010\u53d7\u7535\u538b<\/td>185 kV peak<\/td><\/tr>
\u5c40\u90e8\u653e\u7535<\/td>\u22645 pC at 1.1 Um<\/td><\/tr>
\u722c\u7535\u8ddd\u79bb<\/td>Complies with the applicable requirements of GB\/T 311 and related standards<\/td><\/tr>
Optional Configuration<\/td>Integrated internal shielding layer<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u4ea7\u54c1\u7279\u70b9<\/h3>\n\n\n\n

Excellent Electrical Insulation<\/h3>\n\n\n\n

The wall bushing is manufactured through an integrated epoxy resin Automatic Pressure Gelation process. The dense moulded structure helps minimize internal bubbles, voids, and other insulation defects.<\/p>\n\n\n\n

Its high dielectric strength provides reliable resistance to electrical breakdown in 35 kV power systems.<\/p>\n\n\n\n

The external shed structure increases the creepage distance and improves resistance to surface tracking, moisture, contamination, and flashover.<\/p>\n\n\n\n

\u53ef\u9760\u7684\u673a\u68b0\u5f3a\u5ea6<\/h3>\n\n\n\n

The epoxy resin body provides good resistance to impact, bending, cracking, and mechanical deformation.<\/p>\n\n\n\n

It can withstand the electrodynamic forces generated by busbars during short-circuit conditions, helping maintain conductor alignment and structural stability during long-term operation.<\/p>\n\n\n\n

The square mounting flange distributes mechanical loads evenly and provides a firm connection to switchgear panels, walls, or equipment partitions.<\/p>\n\n\n\n

Optimized Electric Field Distribution<\/h3>\n\n\n\n

An internal shielding layer can be integrated according to application requirements. The shielding structure helps distribute the electric field more evenly, reduce local electric field concentration, and suppress partial discharge.<\/p>\n\n\n\n

The smooth internal and external surfaces contain no sharp edges, helping reduce corona discharge and improve long-term insulation reliability.<\/p>\n\n\n\n

\u5f3a\u5927\u7684\u73af\u5883\u9002\u5e94\u6027<\/h3>\n\n\n\n

The epoxy resin material provides resistance to:<\/p>\n\n\n\n

    \n
  • High and low temperatures<\/li>\n\n\n\n
  • Electrical ageing<\/li>\n\n\n\n
  • Moisture<\/li>\n\n\n\n
  • Chemical corrosion<\/li>\n\n\n\n
  • Mould and fungal growth<\/li>\n\n\n\n
  • Insects and other biological influences<\/li>\n\n\n\n
  • Common industrial contaminants<\/li>\n<\/ul>\n\n\n\n

    The product can be used in indoor, outdoor, high-altitude, and industrial power distribution environments, subject to the selected creepage distance and installation configuration.<\/p>\n\n\n\n

    \u5b89\u88c5\u7ef4\u62a4\u65b9\u4fbf<\/h3>\n\n\n\n

    The standardized flange dimensions and mounting-hole arrangement allow the bushing to be installed in compatible 35 kV switchgear, including KYN61-40.5 and similar cabinet structures.<\/p>\n\n\n\n

    Its compact and lightweight design simplifies installation. Under normal operating conditions, routine maintenance is limited mainly to surface cleaning and connection inspection.<\/p>\n\n\n\n

    \u5e94\u7528<\/h3>\n\n\n\n

    The TG3-35Q\/260\u00d7260\u00d7450 Wall Bushing is suitable for three-phase AC power systems with rated voltages from 10 to 35 kV and frequencies from 15 to 60 Hz.<\/p>\n\n\n\n

    \u5178\u578b\u5e94\u7528\u5305\u62ec\uff1a<\/p>\n\n\n\n

      \n
    • Busbar passage connections inside high-voltage switchgear<\/li>\n\n\n\n
    • KYN61-40.5 and similar 35 kV switchgear<\/li>\n\n\n\n
    • Busbar connections through substation walls and partitions<\/li>\n\n\n\n
    • Power distribution room wall penetrations<\/li>\n\n\n\n
    • Box-type substations<\/li>\n\n\n\n
    • \u73af\u7f51\u67dc<\/li>\n\n\n\n
    • Busbar and conductor insulation support<\/li>\n\n\n\n
    • Industrial high-voltage distribution systems<\/li>\n\n\n\n
    • Mining power distribution systems<\/li>\n\n\n\n
    • Petrochemical electrical installations<\/li>\n\n\n\n
    • Power stations and substations<\/li>\n<\/ul>\n\n\n\n

      The bushing can be used wherever a live conductor must pass through a grounded wall, metal panel, equipment partition, or insulating barrier.<\/p>\n\n\n\n

      \u64cd\u4f5c\u6761\u4ef6<\/h3>\n\n\n\n

      Normal Environmental Conditions<\/h3>\n\n\n\n
      Condition<\/th>Requirement<\/th><\/tr><\/thead>
      \u73af\u5883\u6e29\u5ea6<\/td>-40\u00b0C \u81f3 +120\u00b0C<\/td><\/tr>
      Short-Term Temperature Resistance<\/td>Up to +155\u00b0C<\/td><\/tr>
      Installation Altitude<\/td>\u22643,000 m<\/td><\/tr>
      Daily Average Relative Humidity<\/td>\u226495%<\/td><\/tr>
      Monthly Average Relative Humidity<\/td>\u226490%<\/td><\/tr>
      Pollution Level<\/td>Up to Level IV<\/td><\/tr>
      \u5b89\u88c5\u73af\u5883<\/td>Free from severe vibration, impact, explosive substances, and strongly corrosive gases<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      For installations above 3,000 metres, equipment derating, insulation coordination adjustment, or a customized bushing may be required.<\/p>\n\n\n\n

      For heavily polluted environments, a model with an increased creepage distance should be selected.<\/p>\n\n\n\n

      \u5b89\u88c5\u8981\u6c42<\/h3>\n\n\n\n

      Installation Direction<\/h3>\n\n\n\n

      The wall bushing can be installed vertically or horizontally.<\/p>\n\n\n\n

      The flange surface must fit closely against the switchgear panel, wall, or mounting partition. All fastening points should be tightened evenly to avoid mechanical stress and deformation.<\/p>\n\n\n\n

      Conductor Installation<\/h3>\n\n\n\n

      When inserting a copper bar or busbar through the bushing, maintain an even clearance between the conductor and the inner surface.<\/p>\n\n\n\n

      The conductor must be correctly centred to prevent localized mechanical stress and uneven electric field distribution.<\/p>\n\n\n\n

      Do not force an oversized or misaligned conductor through the bushing.<\/p>\n\n\n\n

      Sealing and Protection<\/h3>\n\n\n\n

      Install a suitable sealing gasket between the flange and the mounting surface.<\/p>\n\n\n\n

      The seal helps prevent dust, moisture, and contaminants from entering the equipment compartment and improves long-term insulation reliability.<\/p>\n\n\n\n

      \u7535\u6c14\u95f4\u9699<\/h3>\n\n\n\n

      After installation, verify the clearance between live conductors and grounded structures.<\/p>\n\n\n\n

      The completed assembly must meet the minimum electrical clearance and insulation coordination requirements specified in GB\/T 311 and other applicable standards.<\/p>\n\n\n\n

      Fastening Requirements<\/h3>\n\n\n\n

      Use suitable mounting bolts and tighten them according to the equipment assembly specifications.<\/p>\n\n\n\n

      Excessive tightening may damage the epoxy resin flange, while insufficient tightening may result in vibration, loosening, or uneven mechanical loading.<\/p>\n\n\n\n

      Inspection and Maintenance<\/h3>\n\n\n\n

      \u5b89\u88c5\u524d\u68c0\u67e5<\/h3>\n\n\n\n

      Before installation, confirm that:<\/p>\n\n\n\n

        \n
      • The model and dimensions match the equipment design<\/li>\n\n\n\n
      • The flange dimensions and mounting holes are compatible<\/li>\n\n\n\n
      • The surface is clean and dry<\/li>\n\n\n\n
      • No cracks, chips, deformation, or impact damage are present<\/li>\n\n\n\n
      • The internal passage is free from foreign objects<\/li>\n\n\n\n
      • Required electrical inspection results are acceptable<\/li>\n\n\n\n
      • The conductor size matches the internal opening<\/li>\n<\/ul>\n\n\n\n

        Do not install a bushing with visible damage or suspected insulation defects.<\/p>\n\n\n\n

        Routine Inspection<\/h3>\n\n\n\n

        During scheduled equipment maintenance:<\/p>\n\n\n\n

          \n
        • Clean contamination from the insulating surface<\/li>\n\n\n\n
        • Check the flange mounting bolts for looseness<\/li>\n\n\n\n
        • Inspect the surface for cracks or deformation<\/li>\n\n\n\n
        • Check for electrical tracking marks<\/li>\n\n\n\n
        • Check for carbonization or arc damage<\/li>\n\n\n\n
        • Inspect for abnormal partial discharge<\/li>\n\n\n\n
        • Confirm that the conductor remains correctly positioned<\/li>\n\n\n\n
        • Check the condition of the flange sealing gasket<\/li>\n<\/ul>\n\n\n\n

          Use a clean, dry, soft cloth for routine cleaning. Do not use corrosive solvents, metal tools, or abrasive cleaning materials.<\/p>\n\n\n\n

          Replacement Conditions<\/h3>\n\n\n\n

          Stop operation and inspect or replace the wall bushing immediately if any of the following conditions are found:<\/p>\n\n\n\n

            \n
          • Visible cracks<\/li>\n\n\n\n
          • Severe surface damage<\/li>\n\n\n\n
          • Carbonization<\/li>\n\n\n\n
          • Electrical tracking<\/li>\n\n\n\n
          • Arc erosion<\/li>\n\n\n\n
          • Abnormal partial discharge<\/li>\n\n\n\n
          • Mechanical deformation<\/li>\n\n\n\n
          • Loose or damaged conductor connections<\/li>\n\n\n\n
          • Significant deterioration of insulation performance<\/li>\n<\/ul>\n\n\n\n

            \u5b89\u5168\u6ce8\u610f\u4e8b\u9879<\/h3>\n\n\n\n
              \n
            • Avoid impact, dropping, compression, and improper stacking during transportation.<\/li>\n\n\n\n
            • Store the product in a dry, ventilated environment free from corrosive gases.<\/li>\n\n\n\n
            • Protect the insulating surface from moisture, oil, dust, and mechanical damage.<\/li>\n\n\n\n
            • Do not drill, cut, grind, or otherwise modify the bushing without technical approval.<\/li>\n\n\n\n
            • Do not install or remove the product while the equipment is energized.<\/li>\n\n\n\n
            • Disconnect and isolate all power sources before installation or maintenance.<\/li>\n\n\n\n
            • Confirm that the circuit is de-energized and properly grounded before work begins.<\/li>\n\n\n\n
            • Installation and maintenance must be carried out by qualified electrical personnel.<\/li>\n\n\n\n
            • Stop operation immediately if partial discharge, tracking marks, cracks, or other insulation abnormalities are detected.<\/li>\n<\/ul>\n\n\n\n

              Selection and Ordering Information<\/h3>\n\n\n\n

              When selecting the TG3-35Q\/260\u00d7260\u00d7450 Wall Bushing, confirm the following information:<\/p>\n\n\n\n

                \n
              • System rated voltage<\/li>\n\n\n\n
              • \u989d\u5b9a\u7535\u6d41<\/li>\n\n\n\n
              • Conductor or busbar dimensions<\/li>\n\n\n\n
              • Installation direction<\/li>\n\n\n\n
              • Mounting flange dimensions<\/li>\n\n\n\n
              • Available installation space<\/li>\n\n\n\n
              • Required creepage distance<\/li>\n\n\n\n
              • Environmental pollution level<\/li>\n\n\n\n
              • Installation altitude<\/li>\n\n\n\n
              • Need for an internal shielding layer<\/li>\n\n\n\n
              • Indoor or outdoor operating conditions<\/li>\n<\/ul>\n\n\n\n

                Customized rated current, conductor openings, creepage distances, shielding structures, and mounting dimensions are available according to project requirements.<\/p>\n\n\n\n

                \"TG3-35Q-260x260x450-\u886c\u5957\"<\/figure>\n\n
                \n\n\t\t\n
                  \n\t\t\t <\/ul>\n <\/div>","protected":false},"excerpt":{"rendered":"

                  Product Overview The TG3-35Q\/260\u00d7260\u00d7450 Wall Bushing is an epoxy resin insulating component designed for 35 kV high-voltage power systems. It […]<\/p>\n","protected":false},"featured_media":674,"template":"","meta":{"_acf_changed":false,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_category":[34],"class_list":["post-673","products","type-products","status-publish","has-post-thumbnail","hentry","product_category-insulation-components-series"],"acf":{"products_imagines":[674,675],"short_describe":"

                  The TG3-35Q\/260×260×450 Wall Bushing is an epoxy resin insulating component designed for 35 kV high-voltage power systems.<\/p>","pdf_file":"","related_products":{"products":""},"technical_parameter":"","outline_and_installation_dimension":""},"_links":{"self":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/products\/673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/types\/products"}],"acf:attachment":[{"embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media\/675"},{"embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media\/674"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media\/674"}],"wp:attachment":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media?parent=673"}],"wp:term":[{"taxonomy":"product_category","embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/product_category?post=673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}