{"id":3610,"date":"2026-06-25T11:14:10","date_gmt":"2026-06-25T03:14:10","guid":{"rendered":"https:\/\/www.wolunelectric.com\/?post_type=product&p=3610"},"modified":"2026-06-25T11:14:10","modified_gmt":"2026-06-25T03:14:10","slug":"fcgw-40-5kv-composite-dry-wall-bushing400a-4000a","status":"publish","type":"product","link":"https:\/\/www.wolunelectric.com\/ar\/product\/fcgw-40-5kv-composite-dry-wall-bushing400a-4000a\/","title":{"rendered":"FCGW-40.5kV Composite Dry Wall Bushing(400A-4000A)"},"content":{"rendered":"
\n

1. Product Overview<\/h2>\n<\/div>\n
\n

\u0645\u0642\u062f\u0645\u0629<\/h3>\n<\/div>\n
\n
FCGW-40.5kV composite dry wall bushing is a dedicated insulating component for 40.5kV medium-voltage power systems, designed to pass high-current copper busbars through partition walls between indoor switch rooms and outdoor power distribution areas.<\/p>\n
<\/div>\n

This series adopts full dry composite silicone rubber insulation, eliminating traditional oil-filled structures. It delivers pollution flashover resistance, explosion-proof, zero leakage and maintenance-free performance, widely deployed in 35kV\/40.5kV substations, high-voltage switch cabinets, transformer rooms, new energy booster stations and heavy industrial power supply projects.<\/p><\/div>\n<\/div>\n

\n

Core Competitive Advantages<\/h3>\n<\/div>\n
\n
\u2705 Hydrophobic Silicone Composite Insulation<\/strong><\/p>\n
<\/div>\n

Excellent anti-pollution, anti-salt-fog and anti-aging properties, stable insulation performance in coastal, chemical plant and heavy dust environments.<\/p>\n

<\/div>\n

\u2705 Oil-Free Dry Structure, High Safety<\/strong><\/p>\n

<\/div>\n

No flammable insulating oil inside, completely avoid oil leakage, fire and explosion risks, compliant with indoor power distribution room fire protection standards.<\/p>\n

<\/div>\n

\u2705 Two Standard Creepage Series Design<\/strong><\/div>\n<\/div>\n

\n
    \n
  • 400A\u20131600A medium-current models: Indoor creepage 662.5mm, outdoor creepage 1306mm<\/li>\n
  • 2000A\u20134000A heavy-current models: Indoor creepage 1427mm, outdoor creepage 1423mm\n
    <\/div>\n

    All models unified total height 1020mm, convenient for standardized wall prefabrication.<\/p>\n

    <\/div>\n
    \u2705 Strong Dielectric Withstand Capacity<\/strong><\/div>\n
    <\/div>\n

    92kV power frequency withstand voltage, fully complies with IEC high-voltage insulation standards for 40.5kV grade.<\/p>\n

    <\/div>\n

    \u2705 Full Current Range Coverage<\/strong><\/p>\n

    <\/div>\n

    Complete specifications ranging from 400A up to 4000A, matching all mainstream 40.5kV main busbar current demands.<\/p>\n

    <\/div>\n

    \u2705 Standardized Square Flange Mounting<\/strong><\/p>\n

    <\/div>\n

    Unified square mounting plate with pre-opened fixing holes, universal wall opening size, fast on-site installation without customized civil modification.<\/li>\n<\/ul>\n<\/div>\n

    \n
    \n

    2. Complete Technical Parameter Table<\/h2>\n<\/div>\n
    \n
    \n
    <\/div>\n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    \n
    \n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Model Number<\/th>\n\u0627\u0644\u0641\u0648\u0644\u062a\u064a\u0629 \u0627\u0644\u0645\u0642\u062f\u0631\u0629<\/th>\n\u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0642\u0646\u0646<\/th>\nIndoor Creepage Distance<\/th>\nOutdoor Creepage Distance<\/th>\nOverall Height<\/th>\nPower Frequency Withstand Voltage<\/th>\n<\/tr>\n<\/thead>\n
    FCGW-40.5\/400<\/td>\n40.5kV<\/td>\n400A<\/td>\n662.5mm<\/td>\n1306mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n
    FCGW-40.5\/630<\/td>\n40.5kV<\/td>\n630A<\/td>\n662.5mm<\/td>\n1306mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n
    FCGW-40.5\/1000<\/td>\n40.5kV<\/td>\n1000A<\/td>\n662.5mm<\/td>\n1306mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n
    FCGW-40.5\/1250<\/td>\n40.5kV<\/td>\n1250~1600A<\/td>\n662.5mm<\/td>\n1306mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n
    FCGW-40.5\/2000<\/td>\n40.5kV<\/td>\n2000A<\/td>\n1427mm<\/td>\n1423mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n
    FCGW-40.5\/3150<\/td>\n40.5kV<\/td>\n3150A<\/td>\n1427mm<\/td>\n1423mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n
    FCGW-40.5\/4000<\/td>\n40.5kV<\/td>\n4000A<\/td>\n1427mm<\/td>\n1423mm<\/td>\n1020mm<\/td>\n92kV<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
    \n

    General Technical Standards<\/h3>\n<\/div>\n
    \n
      \n
    • Rated system voltage: 40.5kV (35kV class power grid)<\/li>\n
    • Insulation material: High-temperature vulcanized silicone rubber composite<\/li>\n
    • Power frequency withstand voltage: 92kV<\/li>\n
    • Operation environment: Indoor & outdoor dual-purpose, anti-pollution grade III<\/li>\n
    • Installation form: Square metal flange fixed vertical mounting<\/li>\n
    • Conductor material: Solid copper busbar through core<\/li>\n
    • Working temperature range: -40\u00b0C ~ +70\u00b0C<\/li>\n
    • Service life: \u226520 years under normal operating conditions<\/li>\n<\/ul>\n<\/div>\n
      \n
      \n

      3. Structural & Dimension Drawing Description<\/h2>\n<\/div>\n
      \n
      Each FCGW-40.5 bushing specification includes three engineering drawings for client design reference:<\/div>\n<\/div>\n
      \n
        \n
      1. Overall full-length dimension drawing: Mark total length, indoor\/outdoor creepage section length, copper busbar through-hole size<\/li>\n
      2. Square mounting flange outline drawing: Standard fixed hole spacing and wall opening reserved size<\/li>\n
      3. End cross-section drawing: Matched copper conductor thickness for different rated currents<\/li>\n<\/ol>\n<\/div>\n
        \n

        Two Specification Series Design Logic<\/h3>\n<\/div>\n
        \n
          \n
        1. Medium Current Series (400A\u20131600A)<\/strong>\n
          <\/div>\n

          Shorter indoor creepage design, suitable for conventional 40.5kV switch rooms with standard wall thickness, cost-effective for general distribution feeders.<\/li>\n

        2. Heavy Current Series (2000A\u20134000A)<\/strong>\n
          <\/div>\n

          Extended indoor creepage distance, thicker copper conductive core, lower temperature rise under full load, specially designed for main incoming lines and heavy-load power transmission circuits.<\/li>\n<\/ol>\n<\/div>\n

          \n
          \n

          4. Application Scenarios<\/h2>\n<\/div>\n
          \n
            \n
          • 35kV\/40.5kV indoor & outdoor power distribution substations<\/li>\n
          • 40.5kV high voltage metal-clad switchgear cabinets<\/li>\n
          • Transformer room wall penetration insulation isolation<\/li>\n
          • Mining, metallurgy heavy industrial high-power power supply systems<\/li>\n
          • Wind farm, solar PV station 35kV booster cabinet power transmission<\/li>\n
          • Urban power grid upgrading, prefabricated compact substation projects<\/li>\n<\/ul>\n<\/div>\n
            \n
            \n

            5. Standard Installation Guidance<\/h2>\n<\/div>\n
            \n
              \n
            1. Reserve square wall opening according to flange drawing dimensions during civil wall construction.<\/li>\n
            2. Pass the bushing through the wall opening, align flange mounting holes with pre-embedded wall bolts.<\/li>\n
            3. Tighten fixing nuts evenly to keep the bushing vertical to the partition wall.<\/li>\n
            4. Connect indoor and outdoor copper busbars to both ends of the conductive core; apply anti-oxidation conductive grease at contact joints to reduce heating.<\/li>\n
            5. Inspect silicone rubber surface for cracks or damage before energization; keep creepage surface clean and free of dust accumulation.<\/li>\n<\/ol>\n<\/div>\n
              \n
              \n

              6. Packaging, Delivery & Custom Service<\/h2>\n<\/div>\n
              \n

              Packaging<\/h3>\n<\/div>\n
              \n
              Export-standard plywood cases with EPE foam inner lining, shockproof and moisture-proof for long-distance sea\/land international transportation.<\/div>\n<\/div>\n
              \n

              Customization Support<\/h3>\n<\/div>\n
              \n
                \n
              • Non-standard rated current, customized creepage distance<\/li>\n
              • Special flange size matching client\u2019s cabinet drawings<\/li>\n
              • OEM brand printing, private label service for overseas distributors<\/li>\n<\/ul>\n<\/div>\n
                \n

                Lead Time<\/h3>\n<\/div>\n
                \n
                  \n
                • Standard inventory models: 7\u201310 working days<\/li>\n
                • Custom non-standard products: 15\u201320 working days<\/li>\n<\/ul>\n<\/div>\n
                  \n

                  International Trade Terms<\/h3>\n<\/div>\n
                  \n
                  Support FOB, CFR, CIF, DAP, DDP; door-to-door delivery available for global ports and destinations.<\/div>\n<\/div>\n
                  \n
                  \n

                  7. Frequently Asked Questions<\/h2>\n<\/div>\n
                  \n

                  Q1: What is the difference between medium current and heavy current FCGW-40.5 bushings?<\/h3>\n<\/div>\n
                  \n
                  A: The main difference lies in creepage distance and conductive copper core thickness. 400A\u20131600A models have shorter indoor creepage for ordinary feeders; 2000A\u20134000A models adopt longer indoor creepage and thicker copper core to control temperature rise under high continuous load. All two series share the same total height of 1020mm for unified civil construction.<\/div>\n<\/div>\n
                  \n

                  Q2: Can this bushing be used in coastal salt fog environment?<\/h3>\n<\/div>\n
                  \n
                  A: Yes. The composite silicone rubber has strong hydrophobicity and anti-salt-fog performance, suitable for coastal areas, chemical factories and high-pollution industrial zones.<\/div>\n<\/div>\n
                  \n

                  Q3: Is this product oil-type or dry-type? What are its safety advantages?<\/h3>\n<\/div>\n
                  \n
                  A: Full dry composite structure without any insulating oil inside. It eliminates risks of oil leakage, fire and explosion, which is much safer for indoor compact switch rooms compared with traditional oil-filled wall bushings.<\/div>\n<\/div>\n
                  \n

                  Q4: Can you provide CAD dimension drawings and test reports?<\/h3>\n<\/div>\n
                  \n
                  A: We can supply editable CAD drawings, complete technical datasheets and factory test certificates free of charge upon client request. Third-party type test reports are available for project bidding.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

                  FCGW-40.5kV composite dry wall bushing, 400A~4000A rated current, 92kV power frequency withstand voltage.<\/p>\n

                  Oil-free silicone insulation, anti-pollution, indoor-outdoor dual-use for 35kV MV substation & switchgear.<\/p>\n

                  Factory direct supply with custom drawing service for worldwide power projects.<\/p>","protected":false},"featured_media":3613,"template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"FCGW-40.5kV Composite Dry Type Wall Through Bushing \u2013 36kV\/40.5kV High Voltage Silicone Insulation Wall Bushing for Substation & MV Switchgear","_seopress_titles_desc":"FCGW-40.5 series composite dry wall bushings for 40.5kV medium voltage power system, rated current 400A~4000A, two sets of creepage distance specifications, 92kV power frequency withstand voltage, oil-free silicone rubber insulation, indoor-outdoor dual-use wall penetration bushing for high voltage cabinet, power station and industrial power distribution. Custom drawings available.","_seopress_robots_index":""},"product_brand":[],"product_cat":[81],"product_tag":[],"class_list":{"0":"post-3610","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-wall-bushing","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product\/3610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/media\/3613"}],"wp:attachment":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/media?parent=3610"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product_brand?post=3610"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product_cat?post=3610"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product_tag?post=3610"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}