APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 20870 Issued:1994-09-01
Revised:2012-02-20
Style 20870 Multiple-conductor cable using non-integral jacket

Rating80 deg C, 300 Vac, Cable Flame.
ConductorMinimun 36 AWG, solid or stranded.
Insulated ConductorLabeled or complying with manufacturer's AWM procedure.
AssemblyTwo or more individually insulated conductors or groups of insulated conductors cabled together to form around cable. A flat or oval cable may also be constructed with not more than three rows of single conductors or groups of conductors. The length of lay of the twisted conductors or groups is not specified. Fillers may be used in a cable but are not required. A barrier layer, if employed, may be a fibrous wrap serving, or braid, paper, nylon, oriented polyethylene terephthalate, or thermoplastic-tape wrap. Such as a 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.
CoveringOptional. Extruded PVC, 10 mils minimum average thickness.
ShieldOptional.
JacketExtruded TPU.
Diameter of core assembly under jacket*Minimum average thicknessMinimum thickness at any point
1.500 inch or less60 mils48 mils
1.501-2.50080 mils64 mils
2.501-4.000110 mils88 mils
4.001 inch or greater140 mils112 mils
*Major diameter if cable is flat or oval.
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseExternal interconnection of electronic equipment.

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