The main function of the high and low voltage distribution box is to distribute, calculate and control electric energy in the power supply system. It's the nerve center of the human body.
Low-voltage distribution box is also called low-voltage switchgear or low-voltage electrical equipment. Generally, power plants use high voltage power distribution cabinet first, and then the current is transferred to the low voltage power distribution cabinet through the transformer treatment, from the low voltage power distribution cabinet to the distribution board and control the power consumption of each box. The internal circuit is composed of switches, indicators, buttons, circuit breakers, fuses, instruments, wires and other common circuit components, which combine all kinds of devices into one to achieve electrical design functions.
Low voltage distribution box use safety technical matters
1. When working on current transformer and voltage transformer circuits, ensure permanent protection and grounding.
2. When all or part of the electrical equipment is working, the maintenance equipment and the operating equipment should be clearly marked apart.
3. It is strictly forbidden to disconnect the current loop or short circuit the secondary coil of the current transformer. Do not wrap conductor. Be sure to use short wire or short circuit strip. Short circuit or grounding should be strictly controlled.
Precautions for low-voltage distribution box installation:
1. There may be deviation in the vertical height of the low-voltage distribution box: inaccurate measurement or uneven ground should be calibrated in time.
2. The iron frame of the distribution box must be square.
3, distribution box solder joints such as corrosion, should be dealt with in time.
4. The gap between the low-voltage distribution box and the surrounding buildings is too large, and cement masonry should be used.
5. distribution box PE wire end is generally not used for residential buildings.
