APPLIANCE WIRING MATERIAL
Subj.758 Section 4 Page 4279 Issued:1977-08-22
Revised:2019-11-07
Style 4279 Multiple insulated conductors using non-integral jacket.

Rating105 deg C, 600 Vac, Cable flame.
Conductor30 AWG - 9 AWG solid or stranded round, tinned or bare copper.
InsulationLabeled or Complying with manufacturer's AWM procedure.
AssemblyTwo or more individually insulated conductors or groups of insulated conductors cabled together. All conductors in any group twisted together. If more than one group is used, groups shall also be twisted together. The length of lay of the twisted conductors or groups is not specified. A barrier layer, if employed, may be a fibrous wrap serving, or braid; paper; nylon; oriented polyethylene terephthalate; or a thermoplastic-tape wrap. Such barrier layer would serve to protect the cable during further processing, and would be applied immediately over the twisted assembly of individual conductors or groups of conductors.
ShieldOptional. 36 - 30 AWG tinned or untinned copper applied as a wrap or braid or a wrap of aluminum faced polyester tape. An uninsulated drain wire may be used. The shield may be over one or more of the insulated conductors or applied between the conductor assembly and the optional covering.
CoveringOptional. A nominal 15 mils of PVC covering may be extruded over the conductor assembly.
BraidOptional.
JacketExtruded XLPVC
dia of cable under jacket
0.425 inches or less45 mils min average36 mils min at any point
0.426-0.700 dia60 avg48 min
0.701-1.500 dia80 avg64 min
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseExternal wiring

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