Ax14728g.aw - Home | US Forest Service

120/208 Volt, 3 phase, 4 wire, Wye; 277/480 Volt, 3 phase, 4 wire, Wye. Wire size: Usually printed on insulation, if not, measure insulation diameter, with micrometer then go to NEC Table 5, page 70-753 of insulation to find wire size under proper insulation type. If circuit is de-energized, actual wire diameter may be measured and wire size ... ................
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