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reference:wire_colors

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reference:wire_colors [2014/02/09 17:48] Alan Sheareference:wire_colors [2018/05/28 22:29] (current) – external edit 127.0.0.1
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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===
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   * brown, violet, yellow and gray    * brown, violet, yellow and gray 
  
-====230V Single Phase===+===230V Single Phase===
   * brown and white   * brown and white
-  * brown and blue((IEC - blue is grounded, neutral conductor ("colder" color) -- http://www.electrical-installation.org/enwiki/The_neutral_conductor))+  * brown and blue((IEC 60446 - blue is grounded, neutral conductor ("colder" color) -- http://www.electrical-installation.org/enwiki/The_neutral_conductor))
  
-====230/400V Three Phase====+===230/400V Three Phase====
   * brown, purple, yellow, gray   * brown, purple, yellow, gray
   * brown, purple, yellow, blue   * brown, purple, yellow, blue
reference/wire_colors.1391968109.txt.gz · Last modified: 2018/05/28 22:28 (external edit)