Kod kolorow izolacji
| typ | kompensacyjny | termoelektryczny | EU IEC 584-3 | D DIN 43714 | GB BS 1843 | F NF C 42-324 | ANSI/MC 96-1 |
| T | TX |  |
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| J | JX |  |
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| E | EX |  |
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| K | KX |  |
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| KCA |  |
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| KCB |  |
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| N | NX |  |
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| R | RCA/RCB |  |
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| S | SCA/SCB |  |
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| B | BC |  |
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