| 单词 | ELV (Extra low voltage) |
| 释义 | ELV (Extra low voltage) According to the International Electrotechnical Commission (IEC), alter- nating current (AC) voltage less than 50V, or direct current (DC) voltage less than 120V. Unlicensed personnel can safely install ELV wiring. See also AC, DC, and IEC. |
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