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reference:wire_colors [2014/02/09 17:48] Alan Sheareference:wire_colors [2014/02/09 17:49] – [NFPA 70 - National Electrical Code (USA)] Alan Shea
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   * Grounded conductor ("neutral"): wires must be white or gray   * Grounded conductor ("neutral"): wires must be white or gray
   * Orange, when used in a 3-phase 4 wire delta configuration supplying 120/240, shall designate the "wild" leg with 208v to neutral.    * Orange, when used in a 3-phase 4 wire delta configuration supplying 120/240, shall designate the "wild" leg with 208v to neutral. 
-    * 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, 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.
  
 ====IEC 60446 Standard=== ====IEC 60446 Standard===
reference/wire_colors.txt · Last modified: 2018/05/28 22:29 by 127.0.0.1