Subj.758 Section 2 Page 21100 Issued:2000-06-27
Style 21100 Multiple conductor cable using non-integral jacket.

Rating80 deg C, 30 Vac, Cable flame (construction A), Horizontal flame (construction B).
Conductor40 AWG minimum.
InsulationLabeled or complying with Manufacture's AWM Procedure having a minimum rating of 80 deg C, 30 V.
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 insulated conductors are 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. A 6 mil or heavier PVC covering may be extruded over the conductor assembly.
Dia. under jacketMinimum average for Construction A External UseMinimum at any point for Construction A External UseMinimum average for Construction B Internal UseMinimum at any point for Construction B Internal Use
0.350 inch or less20 mils17 mils15 mils12 mils
0.351-0.700 inch30 mils24 mils30 mils24 mils
0.701-1.000 inch40 mils36 mils40 mils36 mils
1.001-1.500 inch54 mils48 mils54 mils48 mils
StandardAppliance Wiring Material UL 758.
UseConstruction A: Internal wiring or external interconnection of electronic equipment in Class 2 circuits only. Construction B: Internal wiring of electronic equipment in Class 2 circuits only.

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