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Details of the connection of the total distribution box to the distribution box 2017-12-15 16:28:30    Times of browsing :

This paper is an illustration of the connection method of the total distribution box to the distribution box by taking the three road three road as an example.

1, from the distribution switch of the total distribution box, the yellow, green, red (A, B and C) three-phase lines are respectively led out. The light blue working zero line is drawn from the working zero terminal, and the yellow green double color PE protection zero line is drawn from the PE terminal.


There must be a reliable connection between the braid soft copper wire and the protective connection between the door and the box of the general distribution box.


The safe distance between the five lines.


The 2 line, yellow, green and red line access to the total isolation switch two level distribution box on the N line access to the leakage protector N end light blue, the leakage protection after receiving work zero line terminal board.


3, the yellow green double color PE line is connected to the protection of the zero terminal board PE board.


4. The total isolation switch from the two level distribution electric box leads to the three phase line to the leakage protector.


5, from the junction end of the leakage protector leads to the phase line to the shunt isolation switch.


The PE line cannot enter the leakage protector, because the action of the leakage protector at the end of the line causes a wide range of power outages to be caused by the tripping of the front stage leakage protector.


6, yellow, green and red line respectively from the bypass isolating switch power distribution box leads, LED light blue from the N board terminal work zero line, out of yellow green color protection zero line from the PE board terminal.


There must be a reliable connection between the braided soft copper wire and the protective connection between the door and the box of the distribution box.


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