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BUS BAR PROFILE v/s AMPACITY

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profilebusbar

Electrical
Joined
Sep 4, 2003
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SA
IEC 439 and UL 67 specifies the recommended AMPACITY of rectangular crossection bus-bars.

COuld you please advise, how to calculate ampacity of profiled bus-bars??

MOre surface area should increase the ampacity....and a profiled structure will be give more structural strength to Copper Bus bars.

Bus-bars required is for SWITCH BOARD installation...
 
I'd check with the manufacturer.

If that's not an option, I'd base your ampacity on cross-sectional area only and neglect any possible additional ampacity from non-rectangular profile.

But that's just me.
 
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