Difference between revisions of "Insulation color"
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[[File:Wirecolor201127.png|thumb|right|'''IEC/NEC AC circuits from top to bottom:'''<br />L1, L2, L3 refer to ungrounded current carrying conductors. N refers to grounded current carrying conductors. G refers to protective grounding system.<br/>'''DC circuits from top to bottom:'''<br />Ungrounded positive, ungrounded negative, grounded conductor, and protective grounding system.]] | [[File:Wirecolor201127.png|thumb|right|'''IEC/NEC AC circuits from top to bottom:'''<br />L1, L2, L3 refer to ungrounded current carrying conductors. N refers to grounded current carrying conductors. G refers to protective grounding system.<br/>'''DC circuits from top to bottom:'''<br />Ungrounded positive, ungrounded negative, grounded conductor, and protective grounding system.]] | ||
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Wires - also referred to here as conductors - can come with insulation (used for carrying current in a circuit) or without insulation (used for [[Special:MyLanguage/Grounding system|grounding system]]). If the wires have insulation, it will be possible to choose from a variety of different colors each of which is used to signify the purpose of that wire within an electrical installation. The standards vary from country to country, therefore it is necessary to research the practices in your location. Additionally, the appropriate colors will vary in each country depending upon whether the circuit is [[Special:MyLanguage/Electricity types|alternating current (AC)]], [[Special:MyLanguage/Electricity types|direct current (DC)]] and the system voltage. | Wires - also referred to here as conductors - can come with insulation (used for carrying current in a circuit) or without insulation (used for [[Special:MyLanguage/Grounding system|grounding system]]). If the wires have insulation, it will be possible to choose from a variety of different colors each of which is used to signify the purpose of that wire within an electrical installation. The standards vary from country to country, therefore it is necessary to research the practices in your location. Additionally, the appropriate colors will vary in each country depending upon whether the circuit is [[Special:MyLanguage/Electricity types|alternating current (AC)]], [[Special:MyLanguage/Electricity types|direct current (DC)]] and the system voltage. | ||
| − | ===IEC standard for residential AC wiring=== | + | ===IEC standard for residential AC wiring=== <!--T:3--> |
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*Phase 1 - Brown | *Phase 1 - Brown | ||
*Phase 2 - Black | *Phase 2 - Black | ||
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*Ground - Green with Yellow Stripe/without insulation | *Ground - Green with Yellow Stripe/without insulation | ||
| − | ===US NEC standard for residential 120/208/240 V AC wiring=== | + | ===US NEC standard for residential 120/208/240 V AC wiring=== <!--T:5--> |
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*Phase 1 - Black | *Phase 1 - Black | ||
*Phase 2 - Red | *Phase 2 - Red | ||
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*Ground - Green/Green with yellow/without insulation | *Ground - Green/Green with yellow/without insulation | ||
| − | ===Standard for DC wiring in PV systems=== | + | ===Standard for DC wiring in PV systems=== <!--T:7--> |
| + | <!--T:8--> | ||
*Ungrounded positive - Red | *Ungrounded positive - Red | ||
*Ungrounded negative - Black | *Ungrounded negative - Black | ||
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*Ground - Green/Green with yellow/without insulation | *Ground - Green/Green with yellow/without insulation | ||
| − | ==Notes/references== | + | ==Notes/references== <!--T:9--> |
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Revision as of 10:08, 14 February 2021
IEC/NEC AC circuits from top to bottom:
L1, L2, L3 refer to ungrounded current carrying conductors. N refers to grounded current carrying conductors. G refers to protective grounding system.
DC circuits from top to bottom:
Ungrounded positive, ungrounded negative, grounded conductor, and protective grounding system.
L1, L2, L3 refer to ungrounded current carrying conductors. N refers to grounded current carrying conductors. G refers to protective grounding system.
DC circuits from top to bottom:
Ungrounded positive, ungrounded negative, grounded conductor, and protective grounding system.
Wires - also referred to here as conductors - can come with insulation (used for carrying current in a circuit) or without insulation (used for grounding system). If the wires have insulation, it will be possible to choose from a variety of different colors each of which is used to signify the purpose of that wire within an electrical installation. The standards vary from country to country, therefore it is necessary to research the practices in your location. Additionally, the appropriate colors will vary in each country depending upon whether the circuit is alternating current (AC), direct current (DC) and the system voltage.
Contents
IEC standard for residential AC wiring
- Phase 1 - Brown
- Phase 2 - Black
- Phase 3 - Grey
- Neutral - Blue
- Ground - Green with Yellow Stripe/without insulation
US NEC standard for residential 120/208/240 V AC wiring
- Phase 1 - Black
- Phase 2 - Red
- Phase 3 - Blue
- Neutral - White or grey
- Ground - Green/Green with yellow/without insulation
Standard for DC wiring in PV systems
- Ungrounded positive - Red
- Ungrounded negative - Black
- Grounded negative or positive - White or grey
- Ground - Green/Green with yellow/without insulation
