Subj.758 Section 2 Page 2637 Issued:1973-05-22
Style 2637 Multiple Conductor Cable with Extruded Non-integral Jacket.

Rating90 deg C, 30 Vac, Cable flame.
Conductor40 AWG minimum solid or stranded round.
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.
Covering(Optional) A 6 mil or heavier PVC covering may be extruded over the conductor assembly.
JacketExtruded PVC major dia in inches of 0.425 or less, 30 mils min average, 24 mils minimum at any point; 0.426-0.70 dia, 45 avg, 36 min; 0.701-1.000 dia, 60 avg, 48 min; 1.001-1.500 dia, 80 avg, 64 min; 1.501-2.500 dia, 110 avg, 88 min; 2.501 dia and larger, 140 avg, 112 min.
StandardAppliance Wiring Material UL 758.
UseExternal Wiring.

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