APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 20581 Issued:1988-06-07
Revised:2012-04-17
Style 20581 Multiple-conductor cable using non-integral jacket

Rating60 deg C, 30 Vac, Cable flame (construction B), Horizontal Flame (construction A).
Conductor40 AWG min, solid or stranded.
InsulationLabeled or complying with manufacturer's AWM procedure.
AssemblyConsists of two or more conductors, twisted pairs or groups of twisted conductors twisted together. The conductors or groups of conductors may be laid parallel forming a flat, oval or round cable. The lay of the conductors is not specified. A barrier layer and/or fillers are optional. Manufacturer shall maintain a complete description of each assembly. May use same or mixed AWG size.
CoveringOptional - Extruded PVC covering, 3 mils minimum at any point may be extruded over shielded or unshielded twisted singles, individual groups of twisted singles, or the complete insulated conductor assembly.
ShieldOptional.
JacketExtruded PVC
dia of cable under jacket is 0.350 inches or less*(const A)15 mils min avg12 mils min at any point
dia of cable under jacket is 0.350 inches or less(const B)30 avg24 min
0.351-0.700 dia(const A) and (const B)30 mils avg24 mils min
0.701-1.000 dia(const A) and (const B)40 avg36 min
1.001-1.500 dia(const A) and (const B)54 avg48 min
*Major dia if cable is flat or oval.
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseConstruction A: Internal Wiring of Class 2 Circuits in Electronic Equipment. Construction B: External Wiring of Class 2 Circuits in Electronic Equipment.

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