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Busbar arrangement and color marking

 

4.2 Provisions for selecting wire colors according to the circuit (GB2681) (see Table 6)

4.3      Table 6

Serial number	Circuit	Busbar color code
1	Phase A of an AC three-phase circuit                         Phase B leveler machine for copper.0000pt;">                        Phase C      Neutral or neutral     Ground wire for safety	Yellow Green Red light blue Yellow and green
2	Positive pole of DC circuit                        negative electrode      Ground intermediate	Brown Blue light blue

 

Note: A. The surface of the low-voltage cabinet busbar is tinned, and the color code of the color specified in the table is pasted on the maintenance surface busbar of the cabinet body.

     B. The surface of the busbar of the high-voltage cabinet is tinned, and then the color code of the color specified in the table is pasted on the busbar of the maintenance surface of the cabinet body.

 

4.5 The arrangement of busbars shall meet the requirements of Table VII                  Table七

Differ	Vertical arrangement	Horizontal arrangement	Downline
A	on	Rear	left
B	in	in	in
C	under	before	right
Neutral	Bottom	First	Most right
positive electrode	Up	Rear	left
negative electrode	under	before	right

Description: 1. The orientation is based on the front view of the screen.

       2. Under special circumstances, for example, the arrangement of low-voltage cabinets will cause difficulties in bus bar configuration, and it is allowed not to comply with Table 7.

       3. When the high-voltage cabinet 35KV cabinet is used for communication, the down wires are arranged vertically, and the regulations in Table 7 are not followed.