Subj.758 Section 1 Page 1640 Issued:1974-11-11
Style 1640 Insulated Wire.

Rating80 deg C, 30 Vac, Horizontal flame.
Conductor40 AWG minimum, material not specified.
InsulationSolid or cellular PE or POLYESTER or PP or XLPE, 2 mils minimum thickness
AssemblyInsulated conductor with optional inner shield, optional inner covering, optional outer shield and optional outer covering.
ShieldInner shield (Optional) - Metal Serve, or Braid. Outer shield. (optional)
CoveringInner covering (Optional) - Optional, Paper, PETP, tape wrap or extruded covering outlined below. Outer covering (optional) - PE, PVC, TFE, FEP or ETFE, 3 mils minimum at any point.
StandardAppliance Wiring Material UL 758.
UseInternal wiring of electronic equipment in Class 2 circuits only.
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