So if this was a bigger circuit, say a 60a, and one used #2 AL because it was on hand, can a egc smaller than 4 be used? Or is the reason for the up size irrelevant?circuits using 14/12/10 for minimum size will always have the same size EGC when you upsize the wire due to VD or temp adj.... if the circuit is larger, say 40a, then the EGC might be smaller than the ungrounded conductors even when upsizing for VD because the EGC is smaller to begin with...
the reason is irrelevant. code requires the EGC to be increased proportionally when the ungrounded conductors are increased in size.So if this was a bigger circuit, say a 60a, and one used #2 AL because it was on hand, can a egc smaller than 4 be used? Or is the reason for the up size irrelevant?
Thanks, that is what I expected.the reason is irrelevant. code requires the EGC to be increased proportionally when the ungrounded conductors are increased in size.
unfortunately for the scenario you brought up, #4 is the min req for the EGC. actually #5 could work since #6 is just slightly too small however #5 doesnt exist....
I'll have to admit I've never seen #5 except for here>>#6 is just slightly too small however #5 doesnt exist....
yeah i shouldve said that differently. Ive never seen it as a single conductor on a roll....I'll have to admit I've never seen #5 except for here>>
https://www.lowes.com/pd/Southwire-...Service-Entrance-Cable-By-the-Roll/1000274291
I should have been clearer. Wylie covered it that whenever the current carrying conductors are upsized beyond what's needed the ground conductor also needs to be upsized an equal percentage amount. Old code verbiage was just for when upsized for voltage drop.Thanks.
What if the VD was in the recommended range and I was just upsizing because I hated money/had the wire on hand? Just a hypothetical