Household distribution boxes must be both beautiful and safer. Distribution boxes should meet the following requirements:
1. The distribution box is divided into two types: a shell and a plastic shell. There are two types of wall mounted and concealed, and the box must be intact.
2. The busbars in the cabinet shall be set with zero line, protective grounding line and phase line, respectively, and they shall be intact and have good insulation.
3. The mounting bracket for the air switch should be clean and free of space.
4. The distribution box door panel should have a transparent window for inspection.
The main points for installing the distribution box are:
1, should be installed in a dry, ventilated area, and no obstacles to prevent the use of convenient.2, the distribution box should not be installed too high, the general installation elevation of 1.8 meters in order to operate.
3, The power pipe of the distribution box must be fixed with a locking nut.
4. If the distribution box needs to be opened, the edges of the holes must be smooth and clean.
5. When the distribution box is buried in the wall, it should be vertical, horizontal, and the edge should be 5-6mm.
6. The wiring in the distribution box should be regular and tidy, and the terminal screws must be fastened.
7. Each circuit must have sufficient length to enter the line and must not have connectors.
8. After the installation, indicate the name of each circuit.
9. After the installation is completed, the residue in the distribution box must be cleaned.
Xiaobian message: What is double entry or double exit? That is, the air switch (L) and the neutral wire (N) are all connected to the air switch. In the event of a fault, the two wires can be disconnected at the same time. The double protection device of the zero line of the open fire line is more secure than the single pole air breaker. But the price is a bit more expensive
Distribution box brand
Foreign brands
ABB
Schneider
Siemens
Domestic brands
Chint
Tracy
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