APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 2540 Issued:1971-07-07
Revised:2011-10-07
Style 2540 Parallel Cable with Extruded Integral Insulation

Rating80 deg C, 300 Vac, Horizontal flame.
Conductor44 AWG - 20 AWG flat or round, bare or tinned, silver, nickel, nickel-or silver-plated copper. For flat Conductors min. 0.002 in., max. 0.010 in. thick; min. 0.010 in., max. 0.50 in. wide.
InsulationFRPE, 13 mils min average, 12 mils minimum at any point. Min. insulation width from edge to first conductor same as min. space between adjacent conductors but not less than 0.010 in. in any case.
AssemblyTwo to 400 conductors laid parallel in one plane. Max. width of cable 6 inches, length of conductors not specified. Min. space between adjacent conductors specified as follow (round and flat): round conductors w. 44-30 AWG, flat conductors width with 0.010-0.050 in., min. space between conductors - 0.005 in.; 29-25 AWG, 0.051-0.100 in.,space 0.010 in.; flat conductors width with 0.101-0.200 in., space 0.020 in.; 24-20 AWG, 0.201-0.500 in., space 0.050 in..
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseInternal wiring of electronic equipment.

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