Time：2022-08-10 Preview：1031
Household power cords should be BVV2×2.5 and BVV2×1.5 type wires. BVV is the national standard code, which is copper sheathed wire. BVV2×2.5 and BVV2×1.5, respectively represent 2 cores 2.5 square millimeters and 2 cores 1.5 square millimeters. In general, BVV2×2.5 is used as the main line and trunk line, and BVV2×1.5 is used as a single electrical branch line and switch line. BVV2×4 is used for the one-way air-conditioning line, and a special ground wire is also provided.
National Service Number
CN
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