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Rating | 60 deg C, 300 Vac. |
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Conductor | Each is composed of six tinsel threads stranded with rope lay around a No. 10 three-ply cotton thread at nominally 2.5 turns per inch. Each tinsel consists of two No. 37 AWG copper alloy wires flattened to nominal 0.0009 by 0.018 inch and spiraled concentrically around a core of No. 20, three-ply cotton threads. The conductor resistance per linear foot of cord length shall be 0.28 ohms maximum. |
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Insulation | Extruded SRB/NR, 15 mils minimum average thickness, 13 mils minimum thickness at any point. |
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Assembly | Four conductors, same as type SV Cord, but with a lay of twist opposite in direction to the direction in which the helical cord is wound. |
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Jacket | Extruded NR - NEOPRENE, 30 mils minimum average thickness. The cord is vulcanized while coiled in a helical shape on a mandrel. When the helix is stretched out and released, the cord returns to its helical form because of the elasticity of the jacket. |
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Standard | Appliance Wiring Material UL 758. |
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Marking | General. |
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Use | Suitable for hand set cord of telephone for use in Hazardous Locations. |
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