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The so-called main line refers to the two main wires between the main power supply and all electrical appliances. The main wire must be made of coarse copper core wire, as it carries the charge of various electrical appliances and requires high-performance coarse copper wire. The bypass can choose multi-core wires.

The first step for wires is to have good conductivity. There are copper core wires and other wires on the market. Copper core wires are the most practical type of indoor decoration. However, copper core wires can be divided into several types, including large radius copper cores and multi wire copper cores. The electricity consumption in the home varies, and at its peak, we turn on the TV, air conditioning, computer, lights, water dispenser, refrigerator, hair dryer, etc. If the load capacity of the wire is not strong, coupled with the hot summer, it is easy for the wire to burn due to high temperature, leading to a fire.