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reference:wire_colors [2014/02/09 17:48] – Alan Shea | reference:wire_colors [2014/02/09 17:49] – [NFPA 70 - National Electrical Code (USA)] Alan Shea | ||
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* Grounded conductor (" | * Grounded conductor (" | ||
* Orange, when used in a 3-phase 4 wire delta configuration supplying 120/240, shall designate the " | * Orange, when used in a 3-phase 4 wire delta configuration supplying 120/240, shall designate the " | ||
- | * Orange is the only ungrounded conductor specified by the NEC. "Wild leg" (120/240 center-tapped neutral delta configuration), the two end phases on the center-tapped winding provide 120 volts to neutral, but on the wild leg you will find nearly 208 volts to the neutral. If you see an orange wire in a panel, alarm bells should go off: You don’t want to wire a 120 VAC circuit across the wild 208 volt phase. | + | * Orange is the only ungrounded conductor specified by the NEC. In a 120/240 center-tapped neutral delta configuration, |
====IEC 60446 Standard=== | ====IEC 60446 Standard=== |