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Specific description of the terms busway and closed bus

  • Categories:Zhongrui News
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  • Time of issue:2019-05-28 14:05
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(Summary description)First look at the terms busway and closed busbar: According to JB/T 9639, the closed busbar refers to the medium and high voltage bus. The busway is only mentioned in GB7251 and not as an independent specification, but it is generally said to be a low voltage busway. As far as the rules are concerned, the closed busbars generally refer to medium and high voltage busbars: the common box busbar and the off-phase busbar. The closed busbar bridge I have seen is that the low-voltage busbar is air-insulated according to the process and style of the common box busbar (NPB). The main switchgear cabinet is connected to the switchgear cabinet and the marine busbar; the appearance and process are high voltage. The actual rated voltage can be low voltage. It may also be the reason you ask.

Specific description of the terms busway and closed bus

(Summary description)First look at the terms busway and closed busbar:

According to JB/T 9639, the closed busbar refers to the medium and high voltage bus. The busway is only mentioned in GB7251 and not as an independent specification, but it is generally said to be a low voltage busway. As far as the rules are concerned, the closed busbars generally refer to medium and high voltage busbars: the common box busbar and the off-phase busbar. The closed busbar bridge I have seen is that the low-voltage busbar is air-insulated according to the process and style of the common box busbar (NPB). The main switchgear cabinet is connected to the switchgear cabinet and the marine busbar; the appearance and process are high voltage. The actual rated voltage can be low voltage. It may also be the reason you ask.

  • Categories:Zhongrui News
  • Author:
  • Origin:
  • Time of issue:2019-05-28 14:05
  • Views:
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First look at the terms busway and closed busbar:
 
According to JB/T 9639, the closed busbar refers to the medium and high voltage bus. The busway is only mentioned in GB7251 and not as an independent specification, but it is generally said to be a low voltage busway. As far as the rules are concerned, the closed busbars generally refer to medium and high voltage busbars: the common box busbar and the off-phase busbar. The closed busbar bridge I have seen is that the low-voltage busbar is air-insulated according to the process and style of the common box busbar (NPB). The main switchgear cabinet is connected to the switchgear cabinet and the marine busbar; the appearance and process are high voltage. The actual rated voltage can be low voltage. It may also be the reason you ask.
 
According to this idea, this problem is actually more troublesome, because the busbar bridge is produced according to the high voltage 1KV standard, defined between high and low voltage, and the operating voltage is indeed low voltage (1KV is the boundary between high and low voltage).
 
Now the question is what you want to do. If it's just a title, many people call it a busway. It makes sense in the line. If it is sales, then you have to be careful, it is best to press 1KV high pressure, the nameplate also press high pressure, otherwise it is very dangerous. Because of this ambiguous thing, I can say that it does not meet the 3C and is fine (I will be fined, cry!) If the export is HS code, it is best to press the high voltage, the nameplate will be replaced at that time, but the foreign busway is relatively Better than domestic, no 3C trouble.

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