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IF i have switchgear with busbar current rating of 1000Amp
35kA then is it necessary to have outgoing breaker kA rating
to be equal to busbar kA rating?
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Answer Posted / rajender mohan
The Busbar Rating specifies the maximum short circuit current it can see and operate, so you can put a breaker up to breaking capacity of busbar,
Ambience temprature has to taken into consideration while designing the LT Panel.
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