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reference:wire_colors
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| reference:wire_colors [2014/02/09 17:37] – Alan Shea | reference:wire_colors [2018/05/28 22:29] (current) – external edit 127.0.0.1 | ||
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| ======Wire Color Standards===== | ======Wire Color Standards===== | ||
| - | |||
| - | The following suggested standards are subject to the | ||
| ====NFPA 70 - National Electrical Code (USA)=== | ====NFPA 70 - National Electrical Code (USA)=== | ||
| - | * Grounding conductor (" | + | * Grounding conductor (" |
| * 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=== | ||
| - | * Grounding conductor (" | + | * Grounding conductor (" |
| * Grounded conductor (" | * Grounded conductor (" | ||
| * PEN (Protective Earth/ | * PEN (Protective Earth/ | ||
| Line 17: | Line 15: | ||
| =====MetaTek Wire Color Standard===== | =====MetaTek Wire Color Standard===== | ||
| + | The following are suggested wire colors when your local electrical code does not designate wire colors. Where your local electrical code conflicts with this standard, you must follow your local code requirements. | ||
| ===120/240V Single-Phase=== | ===120/240V Single-Phase=== | ||
| Line 30: | Line 29: | ||
| * 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 (" | + | * brown and blue((IEC |
| - | ====230/400V Three Phase==== | + | ===230/400V Three Phase==== |
| * brown, purple, yellow, gray | * brown, purple, yellow, gray | ||
| * brown, purple, yellow, blue | * brown, purple, yellow, blue | ||
| Line 43: | Line 42: | ||
| * http:// | * http:// | ||
| * [[http:// | * [[http:// | ||
| - | * | + | * [[http:// |
| + | * http:// | ||
reference/wire_colors.1391967424.txt.gz · Last modified: 2018/05/28 22:28 (external edit)
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