APPLIANCE WIRING MATERIAL
Subj.758 Section 5 Page 5158 Issued:1977-07-19
Revised:2012-12-19
Style 5158 Single conductor with non-extruded insulation

Rating450 deg C, 300 Vac, Horizontal flame.
Conductor24 AWG - 4/0 AWG. Solid or stranded for 24-8 AWG, stranded only for larger sizes.
InsulationConsisted of glass braid or serving treated with SR varnish or PTFE finish (inner layer), mica tapes (middle layer) and glass braid treated with SR varnish or PTFE finish (outer layer) .
Conductor sizeMinimum average thickness of glass braid or serving treated with SR varnish or PTFE finishMinimum average thickness of mica tapesMinimum average thickness of glass braid treated with SR varnish or PTFE finish
24-12 AWG5 mils10 mils7 mils
11-4 AWG10 mils20 mils15 mils
3-4/0 AWG10 mils25 mils20 mils
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseInternal Wiring where not subjected to mechanical abuse.

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