UL 1773-2020 pdf download

UL 1773-2020 pdf download.Termination Boxes.
6.2 Conduit connections 6.2.1 A nonmetallic enclosure shall have a bonding means provided to maintain continuity of grounding between all conduit openings. For a construction having a threaded opening or nipple for metal conduit, the bonding means shall be assembled to the enclosure. For a construction having a non-threaded opening, the bonding means may be provided as separate parts for field installation. An enclosure intended for field assembly of the bonding means shall be provided with instructions for installation. The instructions shall include the identification of the parts and their method of installation. Exception: The bonding means need not be provided in a nonmetallic enclosure not intended for use with a metallic conduit system ifthe enclosure is marked as specified in 28.8.1. 6.2.2 A nonmetallic enclosure having provision for connection of rigid metallic conduit or rigid nonmetallic conduit shall be investigated for such use as specified in the Conduit Connection Tests, Section 22. 6.3 Provision for support 6.3.1 Provision for support or other mounting means for a nonmetallic termination box shall be outside the termination box, unless the termination box is constructed such that the conductors within the box cannot contact the supporting screws. 6.3.2 So that contact between a supporting screw and conductors within a box will be prevented as required in 6.3.1, a hole in a box for a screw shall be located in a recess constructed such that there will be a spacing of not less than 1/32 inch (0.8 mm) between the plane of the top of the recess and the head of the largest screw that is provided with the box.
6.4 Enclosures containing inlet assemblies 6.4.1 All inlet assemblies shall be installed within the termination box such that the enclosure completely encloses all uninsulated parts, both with and without the inlet cables connected to the assembly. 6.4.2 Where used to connect inlet conductors, enclosures shall separate inlet conductors from internal terminal box wiring. Access to the inlet conductors shall be possible without exposing the internal terminal box conductors or uninsulated live parts. 6.4.3 The enclosure shall be such that when the covers and doors are properly secured, accidental contact with the body of all separable connectors is prevented. 6.4.4 Access panels and doors provided for the attachment and removal of inlet conductors shall be secured by means of a latching mechanism incorporating a lock and key, a fastener requiring the use of a tool, or shall have provision for locking. 6.4.5 Where intended for outdoor use, the enclosure shall comply with the requirements of the Standard for Enclosures for Electrical Equipment, Non-Environmental Considerations, UL 50 and the Standard for Electrical Equipment, Environmental Considerations, UL 50E for the intended use, with and without the inlet conductors connected. 6.4.6 Marking and instructions on the exterior of an enclosure shall be permanent and suitable for the intended use. See Markings, Section 28. 7 Mounting Post or Pedestal 7.1 General 7.1.1 A mounting post or pedestal shall not be less than 12 square inches (77 cm 2 ) in cross-sectional area and 2-1/2 inches (63.5 mm) deep, and at least three sides shall be fabricated of galvanized steel not less than 0.070 inch (1.8 mm) thick.
7.1.2 That portion of a post located below grade level and up to 12 inches (305 mm) above grade level shall be painted on both the inside and outside surfaces in addition to being galvanized. 7.1.3 Where intended for outdoor use, the mounting post or pedestal shall comply with the requirements of the Standard for Enclosures for Electrical Equipment, Non-Environmental Considerations, UL 50 and the Standard for Electrical Equipment, Environmental Considerations, UL 50E for the intended use. Mounting posts or pedestals with an integral door or cover intended to provide environmental protection of factory or field installed receptacles shall provide environmental protection with and without attachment plugs connected. See Rain and Splash Test specified in Section 23. 7.2 Cover 7.2.1 A cover or cap for a mounting post or pedestal shall be of metal not thinner than as required in 7.1.1, or nonmetallic material complying with the Standard for Enclosures for Electrical Equipment, Non- Environmental Considerations, UL 50. A cover or cap fabricated from 0.056 inch (1.4 mm) thick steel may be any length provided its width does not exceed 10 inches (254 mm). Exception: A cover or cap provided on a mounting post or pedestal to close unused openings intended to accommodate a field-installed unit may be thinner than 0.056 inch if the cover or cap complies with the deflection test described in the Deflection Test, Section 21. 7.3 Grade level 7.3.1 The distance between the marked final grade level of a mounting post as covered in 28.7.1 or the bottom of the base of a mounting pedestal and the lowest live part shall not be less than 12 inches (305 mm). 7.4 Wire opening 7.4.1 The opening provided in the base of a mounting post for the entrance of underground wiring shall be rolled, flanged, or equipped with a bushing so that there will be a smoothly rounded surface against which the cables can bear. The upper edge of the opening shall be at least 18 inches (457 mm) below the marked final grade level.UL 1773-2020 pdf download.