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Correct Connection Method of Charging Socket

In a power supply system where the neutral point is not grounded, protection grounding must be carried out. In a system where the neutral point is grounded, zero protection can be applied to the device enclosure. However, these two protection methods are not allowed to be shared in the same low-voltage grid.


The use of protective zero has the following characteristics:

The use of protective zero electrical equipment, such as insulation damage, the "phase" of the "zero" short-circuit current is much larger than the use of protective grounding, which can prompt the fuse or automatic air switch action in a short time, quickly cut off the power supply; Because the zero line and phase line are generally laid in parallel, so the use of protection zero is safe and convenient. In the use of single-phase socket protection zero. The wiring must be correct. The right jack of the single-phase three-hole power socket is connected to the phase line, the left jack is connected to the neutral line, and the upper jack (the aperture is larger than the other two jacks) is connected to the protection neutral line.


Correct Connection Method of Charging Socket


However, this neutral line must be connected to the main line of the neutral line, and can not be connected to the left jack terminal between the main line of the neutral line. In this case, once the null line is broken, the voltage of the phase line is led to the left jack of the working null line through the electrical equipment, and then transmitted to the equipment shell by the connecting line, so that the personnel touching the equipment shell will be shocked. Therefore, it is necessary to strictly follow the correct wiring mode and install a three-hole power socket. There are strict standards for installation and arrangement of electrical lines. In practice, it is very important to correctly assemble ground, neutral and live lines according to the standards.

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Correct connection method of charging socketIn a power supply system where the neutral point is not grounded, protection grounding must be carried out. In a system where the neutral point is grounded,...

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