Home wiring circuit knowledge
1 material selection
If you are renovating an old house, the original aluminum wire must be replaced with a copper wire because the aluminum wire is easily oxidized and its connector is easy to light. According to the survey, the incidence of electrical fire using aluminum wire is the number of copper wires. ten times. If you plan to save trouble, or change the line affect the appearance. Only change the switch and outlet, it will bury potential safety hazards for the residents in the future.
2. Conductor cross section
From the perspective of electrical safety, the national residential design code specifies that branch circuit sections should be no less than 2.5 inches. Air-conditioning and other high-power electrical appliances are best left alone a 4-inch line, if you consider the future surge in the number and type of kitchen and bathroom appliances, kitchen and bathroom circuit is best to use 4 铜 copper.
3. The number of loops
Sufficient loop count is essential for modern home life. When a short circuit or other problem occurs on a line, it will not affect the normal operation of other circuits. According to the area of ​​use, lighting circuit can choose two or three ways, power socket three to four. The kitchen and toilets each take one route, with air-conditioning circuits two to three, and one air-conditioning circuit with two air conditioners.
4 wiring method
In order to be beautiful and easy to inspect and replace, slotting and dark pipe laying are generally adopted. In the wiring process, the principle of "hot line entry switch, zero line entry lamp" should be followed.
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