The thicker the wire, the better the insulation? The thicker the wire, the better——The thicker the wire, the greater the current carrying capacity and the better the insulation. It is not easy to heat up, it is not easy to leak electricity, and it is safer to use. But when it comes to the place of use, you can't just consider the performance of the wire.
Like what we're going to say here,“decoration wire”, in addition to wire size, there are also objective factors to consider. In home decoration, the increase in the thickness of the wire will cause the following disadvantages: increased cost: 4 square meters is more expensive than 2.5 square meters, and 6 square copper wires are more expensive than 4 square copper wires. The cross-section of the wire becomes larger, and the corresponding cost also increases.
Single-phase electricity requires three wires as live wire, neutral wire and ground wire respectively, and the cost is 3 times more than the original BV4 square. Reduced operability The thicker the wire, the more difficult the construction. When the wire becomes thicker, it will also become hard, and it is very difficult to pull and pull, and it is very easy to have a dead line.
Corresponding pipe material, slotting and other processes will increase the cost and difficulty. The safety reduction of the national standard wire is 25-32A for 4 square meters, and 48A for 6 square meters. Under the same voltage, large current means that in case of electric shock, the safety of excessive current is lower.
Corresponding leakage equipment and air switch should be equipped with suitable line current. Summary: In the "Code for Electrical Design of Residential Buildings", it is expressly stipulated as follows: for a one-bedroom room below 60 square meters (inclusive), the main circuit uses 6 square copper wires; the lighting circuit uses 1.5 square copper wires; the ordinary socket circuit uses 2.5 square copper wires ; The high-power socket circuit uses 4 square copper wires. The thicker the wire, the better the insulation? The thicker the wire, the better? Shenzhen Noyafa Electronic Technology Co., Ltd.
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