How to judge the zero line and the ground line in an irregular line place
If there is a neutral line, what happens to the ground line (such as three-hole socket, three-wire four-wire power distribution system)
Nowadays, in the three-phase five-wire power supply line, the yellow-green red abc is easy to distinguish (using an electric pen or a multimeter). From the distribution box through the zero line of the meter, find the line color or find it with a multimeter. The line from the terminal block of the distribution box is naturally the ground line. Shun the vine, mark the zero line, and the wiring is complete.
2. The regular line ground should be a two-color line, especially the wiring of the three-hole socket.
In this way, there will be no reversal of zero ground, and there will be no consequences.
Note: The support of the neutral terminal block is insulated, and vice versa.
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