With the development of social economy and the widespread application of electricity, household electricity consumption is also increasing. For lighting or hair blowing, it is necessary to use AAC cables to ensure the level of safety.
The difference between single-core cable and multi-core cable
Take copper wire as an example. In fact, the difference between single-core and multi-core lies in the flexibility of the steel wire. It is necessary to determine which to use according to the specific purpose. The specific point is:
1. In terms of circuit capacity, the rated current of the three-core cable and the single-core cable are in the same section, and the rated current of the single-core cable is greater than the rated current of the three-core cable.
2. From the perspective of insulation performance, single-core three-core cables need to meet national standards. Under the premise of meeting national standards, a certain amount of safe space is still required. It can be understood that the insulation performance is qualified and there is no difference.
3. In terms of cable use, the heat dissipation performance of a single-core cable is greater than that of a three-core cable (the same type of cable), plus the single-core cable rated load current of the same section of three-core cable, it is more stable to use under the same load or short-circuit conditions. The calorific value of the core cable is less than the calorific value of the three-core cable.
4. From the perspective of cable laying, single-core cables are more convenient to lay and easier to bend, but long-distance laying of single-core cables is more difficult than three-core cables.
5. From the perspective of the installation of ASTM 477 MCM ACSR Cable head, it is easier to install the single-core cable head, and it is also convenient to remove the wires.
If the wire needs to pass through the pipe and bury the wall, the heat dissipation of the wire will be affected and the carrying capacity will be reduced. Generally speaking, as long as the wires are not connected to the sockets of high-power appliances (such as air conditioners, electric water heaters, etc.), 2.5 square meters of wires are sufficient. If the power of the electrical appliance is less than that, there will not be too much current.
It is recommended to use a 4-square wire for the kitchen socket, on the one hand because there are many appliances in the kitchen, and on the other hand because of the high frequency of use. Some kitchens have a square at the top, and then arrange the sockets below and use 2.5 square wires to extinguish the fire. All sockets are connected separately from the square wires, so this method is no problem.