[RE-wrenches] Engineered Solution to 705.12

Blake Gleason blake at sunlightandpower.com
Mon Apr 14 13:48:35 PDT 2025


Yes, basically just verifying that the loads will not exceed the busbar
rating, with some safety factor/cushion based on judgement and available
data.  For example, in a controlled industrial situation with years worth
of 15-minute demand data showing consistent demand, a relatively small
cushion.

Blake

On Mon, Apr 14, 2025, 1:14 PM Jennifer Crawford via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Has anyone actually seen an engineer-supervised design for a busbar with
> multiple power sources & loads? I'm looking at 705.12-B-6, or similar
> depending on which code cycle we're talking about. What specifically were
> they checking, and did they reference any particular IEEE standard or other
> reference as the basis of their approval?
>
> Regards,
>
>
>
> Jen Crawford, PE (NY, MA, TX, WV, VA, ME, MD)
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