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Topic Title: Prospective Short-Circuit Current
Topic Summary: Generator and UPS arrangement
Created On: 18 November 2013 03:47 AM
Status: Post and Reply
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 18 November 2013 03:47 AM
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Patchy

Posts: 26
Joined: 29 September 2008

Hi all,

My local code requires alternate egress paths where a switchboard has a prospective short-circuit current of not less than 15 kA.

I have a board that has an integral ATS capable of switching between the building supply (from MSB) and the standby generator supply (from generator switchboard).

There is also a 120 kVA UPS/battery arrangement connected to the switchboard.

Any ideas where to begin with this calculation? If anyone could recommend a design guide that is applicable to this type of install etc that would be great!

Cheers,
Patchy
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