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| Rating | 125 deg C, 300 Vac, Horizontal flame. |
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| Conductor | 24 AWG min, Resistance wire, solid or stranded. |
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| Insulation | Extruded TPE, average wall thickness 30 mils, minimum wall thickness 20 mils, Web thickness 45 mils, Wall after rip 13 mils. See facing page for compound. |
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| Assembly | Two conductors, same as Type SPT-1. |
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| Shield | Optional. |
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| Jacket | Optional. Extruded TPE, 30 mils min average, 24 mils minimum at any point. See Facing page for compound. |
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| Standard | Appliance Wiring Material UL 758. |
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| Marking | General. |
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| Use | Heating cable, where the acceptability of the combina- tion is to be determined by Underwriters Laboratories Inc. |
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