Home decoration, the original electrician to open the single to buy is 2.51.5 BVV line, and later he drilled holes are not big enough (more lines, there are network cable, monitoring, video) said to switch to BVR line. I would like to ask, with a single strand of the line is good or more shares of the good, or are the same, if the single shares of the good I would like to put him big hole again. Hurry more
BVV line is a single strand of copper, insulated more than a layer, of course, some of the larger, some people also called the balance line. Fire line zero line together. BVR line is multi-strand copper wire, is a soft line. Multiple shares and single shares as long as the square, no difference. This line with a line, with a zero line. I think the BVR line is even better than the BVV line. Fortunately, it is separate from the heat is good, not easy to short circuit. By the team for help, only this reply, I hope to help you.
BVV stands for PVC insulated, PVC sheathed, copper core (hard) cloth wire. Often referred to as jacket line, single-core is round, double-core is flat. Often used to mount wires. BVR stands for PVC insulated, copper core (soft) cloth wire. Often referred to as soft lines. As the wire is relatively soft, often used for electric drag and motor connection and the cable often have a slight movement of the occasion. It is recommended to use BVR line, there are strong and weak not to be wired together, that is, network cable, monitoring line, video lines and wires can not be in the same slot.
BVV line is double-layer insulation protection, and BVR is a single-layer insulation protection, so the same area BVV line (BVV) is a double-layer insulation protection, and BVR is a single layer of insulation protection, so the same area BVV line Compare BVR thicker, harder. Why use BVV single-core line, the main consideration when the contact to be better, not prone to poor contact. Also home decoration lighting generally with 2.5 square feet, sockets and air conditioning generally with 4 square lines.
