APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 21090 Issued:2000-05-03
Revised:2018-04-10
Style 21090 Multi-conductor cable using non-extruded covering.

Rating80 deg C, Voltage not specified, Horizontal flame (construction A only).
ConductorMin. 40 AWG, solid or stranded.
InsulationLabeled or complying with manufacturer's AWM Procedure having a min rating 80C.
AssemblyConstruction A - Two or more groups of conductors labeled or complying with manufacturer's AWM Procedure and having a temperature and voltage rating equaling or exceeding the rating of the cable. These groups are laid parallel with an overall expanded PTFE tape jacket with inner TPU adhesive layer and these groups are joined together by an interconnecting web. The lay of the conductors within each group is not specified. Barrier layer and/or fillers and strength members are optional. Manufacturer shall maintain a complete description of each assembly. May use same or mixed AWG. Construction B - Same as Construction A except employs TPU tubing cores.
Inner CoveringOptional. An expanded PTFE tape, thickness not specified, covering may be extruded over the six groups that are laid parallel with an overall expanded PTFE tape jacket with inner TPU adhesive layer which is joined together by an interconnecting web.
ShieldOptional. May be either over the assemblies or coverings.
Outer CoveringExpanded PTFE tape with Inner TPU adhesive layer.
Thickness of jacketMinimum average thickness milsMinimum thickness at any point mils
Expanded PTFE tape21
TPU layer1211
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseConstruction A: Internal wiring. Construction B: For further processing into Internal wiring - No flame rating.

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