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Rating | 60 deg C, 300 Vac, FT2 flame. |
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Conductor | Two No. 18 AWG, consisting of No. 34 AWG untinned copper strands and one No. 22 AWG consisting of No. 30 AWG tinned copper strands. |
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Insulation | Extruded PVC, 60 mils minimum average hickness, 54 mils minimum thickness at any point. |
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Assembly | Over two conductors same as for Type SPT-3 with a Shield, nominal 60 mils wall except for a minimum 58 mils wall after rip. Over one conductor a 42 mils wall of polyethylene with a wrap shield of 40 ends of No. 34 AWG tinned copper with five ends of No. 34 AWG in a reverse wrap. |
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Jacket | Extruded PVC, 30 mils minimum average thickness, 24 mils minimum thickness at any point. |
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Standard | Appliance Wiring Material UL 758. |
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Marking | General. |
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Use | In stereophonic amplifiers. |
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