Building electrical power equipment in the dark pipe is threading or wearing a cable?
BV denotes a PVC insulated copper wire, and R denotes a plurality of strands.
BVR wire Chinese name: copper core PVC insulated soft sheathed wire. Wire structure: conductor + insulation. Figure: Commonly used PVC insulated wires are: BV, BLV, BVR. Letter B on behalf of the wiring (for example: for the indoor power line, it nail cloth on the wall), voltage: 300 / 500V. V-PVC plastic sheath (a V on behalf of a layer of insulation on behalf of two pairs of insulation) That is, plastic insulation. L represents the aluminum wire, and no L represents the copper wire. The letter R represents the meaning of the cord, to be soft, is to increase the number of conductors, reducing the diameter of each wire. Structure: conductor for the copper wire, the average diameter of each copper wire is less than one millimeter. BV for single-core copper wire, hard, inconvenient construction, but the strength of large; BVR for multi-core copper, soft, easy construction, but the intensity is small. BV single-core copper wire is generally used for more fixed places; BVR multi-core copper wire is generally used for a slight movement of the occasion. In addition, BVR multi-stranded current capacity than the single-stranded line, the price is higher. Usually the inside of the cabinet can be used BVR, not so much strength, easy wiring.
B ... cloth wire class ... V ... polyvinyl chloride (insulation) ... R ... multi-strand cord
