{"id":694702,"date":"2024-11-06T05:37:19","date_gmt":"2024-11-06T05:37:19","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ul-6352021\/"},"modified":"2024-11-06T05:37:19","modified_gmt":"2024-11-06T05:37:19","slug":"ul-6352021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ul\/ul-6352021\/","title":{"rendered":"UL 635:2021"},"content":{"rendered":"

1 Scope<\/b><\/p>\n

1.1 This Standard covers insulating bushings and accessories for insulating bushings used for the following purposes in electrical equipment:<\/p>\n

    \n
  1. \n

    a)\u00a0Insulating bushings used for the protection of cables, flexible cords, and insulated wires, where routed through internal or external walls of electrical equipment.<\/p>\n<\/li>\n

  2. \n

    b)\u00a0Insulating bushings used to provide strain-relief for flexible cord and single conductor insulated wiring and to protect such cords or wiring.<\/p>\n<\/li>\n

  3. \n

    c)\u00a0Accessories to insulating bushings used to supplement the characteristics of the bushing.<\/p>\n<\/li>\n<\/ol>\n

    \n

    1.2 This Standard does not cover bushings used in the following applications:<\/p>\n

      \n
    1. \n

      a)\u00a0Bushings for the protection of uninsulated conductors.<\/p>\n<\/li>\n

    2. \n

      b)\u00a0Strain-relief insulating bushings used to hold more than one cable, wire, or cord.<\/p>\n<\/li>\n

    3. \n

      c)\u00a0Bushings that are an integral part of a flexible cord.<\/p>\n<\/li>\n

    4. \n

      d)\u00a0Bushings used at the end of a raceway at the point of connection to open wiring and bushings used in conjunction with rigid or flexible conduit, conduit fittings, electrical metallic tubing, armored cable, or non-metallic sheathed cable.<\/p>\n<\/li>\n

    5. \n

      e)\u00a0Bushings for power circuit breakers, transformers, or similar power apparatus rated more than 600 volts.<\/p>\n<\/li>\n

    6. \n

      f)\u00a0Bushings intended for outdoor use.<\/p>\n<\/li>\n

    7. \n

      g)\u00a0Bushings used on armored cable between the conductors and the outer armor.<\/p>\n<\/li>\n

    8. \n

      h)\u00a0Insulating bushings provided either separately or as part of a conduit fitting.<\/p>\n<\/li>\n

    9. \n

      i)\u00a0Rainproof or liquid tight bushings.<\/p>\n<\/li>\n

    10. \n

      j)\u00a0Bushings for use on the ends of rigid or flexible conduit.<\/p>\n<\/li>\n

    11. \n

      k)\u00a0Closures of the type used to plug holes in outlet boxes or outlet box covers:<\/p>\n

        \n
      1. \n

        1)\u00a0Covered by the Standard for Metallic Outlet Boxes, UL 514A<\/b> and by the Standard for Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers, UL 514C<\/b>; or<\/p>\n<\/li>\n

      2. \n

        2)\u00a0Of the type used to plug holes in enclosures.<\/p>\n<\/li>\n<\/ol>\n<\/li>\n

      3. \n

        l)\u00a0The following items covered by the Standard for Conduit, Tubing, and Cable Fittings, UL 514B<\/b>:<\/p>\n

          \n
        1. \n

          1)\u00a0Cord grips;<\/p>\n<\/li>\n

        2. \n

          2)\u00a0Insulating bushings;<\/p>\n<\/li>\n

        3. \n

          3)\u00a0Liquid-tight flexible cord fittings;<\/p>\n<\/li>\n

        4. \n

          4)\u00a0Mesh grips;<\/p>\n<\/li>\n

        5. \n

          5)\u00a0Strain relief grips;<\/p>\n<\/li>\n

        6. \n

          6)\u00a0Strain relief grips for bus drop cables;<\/p>\n<\/li>\n

        7. \n

          7)\u00a0Strain relief grips for flexible cords; and<\/p>\n<\/li>\n

        8. \n

          8)\u00a0Strain relief with wire mesh cord grips.<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

          1.3 In this standard, a requirement which applies to one type of bushing is to be identified by a specific reference in that requirement to the type of bushing involved. In the absence of such specific reference or when the general terms "bushing" or "insulating bushing" are used, it is to be understood that the requirement applies to all other types of bushings covered by this standard.<\/p>\n","protected":false},"excerpt":{"rendered":"

          Standard for Insulating Bushings<\/b><\/p>\n\n\n\n\n
          Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
          UL<\/b><\/a><\/td>\n2021-02-15<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":694712,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2680],"product_tag":[],"class_list":{"0":"post-694702","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ul","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/694702","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/694712"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=694702"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=694702"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=694702"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}