![]() ![]() ![]() Cables shall have steel supporting members as required for suspension by 620.41. The individual conductors of all cords, except those of heat-resistant cords, shall have a thermoset or thermoplastic insulation, except that the equipment grounding conductor, where used, shall be in accordance with 400.23(B).ġRubber-filled or varnished cambric tapes shall be permitted as a substitute for the inner braids.ĢElevator traveling cables for operating control and signal circuits shall contain nonmetallic fillers as necessary to maintain concentricity. Notes: All types listed in Table 400.4 shall have individual conductors twisted together, except for Types HPN, SP-1, SP-2, SP-3, SPE-1, SPE-2, SPE-3, SPT-1, SPT-2, SPT-3, SPT-1W, SPT-2W, TPT, NISP-1, NISP-2, NISPT-1, NISPT-2, NISPE-1, NISPE-2, and three-conductor parallel versions of SRD, SRDE, and SRDT. Refrigerators, room air conditioners, and as permitted in 422.16(B)Īll elastomer (thermoplastic) parallel cord Thermoplastic elastomer with optional nylonģ-6 plus grounding conductors and 1 ground check conductor One cotton or equivalent and a thermoplastic jacketĢ or more plus grounding conductor(s), plus optional hybrid data, signal communications, and optical fiber cables Three cotton outer one flame-retardant and moisture-resistant TABLE 400.4 Flexible Cords and Flexible Cables Trade Name
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