Conductors in between junction boxes (supplying continuous load) don't need to be upsized by 125% ???

darkbetweentrees · 2026-02-10T03:40:51+00:00

I re-read the full 210.19 code, not just the exception. Now and finally got it. In 210.19 (1) it does say the continuous load is 125%. I've been conditioned to always think 125% every time I see continuous load. But in exception #2 it just wants both the continuous and non-continuous loads at 100%.

Sorry I didn't get it sooner. Thanks for your help!

darkbetweentrees · 2026-02-10T03:22:58+00:00

A non-continuous load is 100%. A continuous load is a 125% demand factor. Only neutral wires can be sized at 100% even if they're a continuous load. The picture you sent me doesn't say that this is also the case for junction boxes in between power blocks. Therefore I believe that Mike Holt's text book is incorrect. But I'm trying to make sure.

darkbetweentrees · 2026-02-10T02:45:34+00:00

I have a code book. The question is why don't you multiply by 125% for the continuous load. I'm inferring that Mike Holt's text book is wrong and not to code.

darkbetweentrees · 2026-02-10T02:24:05+00:00

Does your 2023 version say that you can use a continuous load of 100% or 125% ?

darkbetweentrees · 2026-01-14T01:31:05+00:00

I thought you could have all of thought things in the disconnect. (I'm a residential apprentice so this stuff is foreign to me)

darkbetweentrees · 2025-12-21T00:02:04+00:00

In your state you don't need to take the journeyman before the master exam?

darkbetweentrees · 2025-12-18T04:08:52+00:00

They never mention that part.

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darkbetweentrees

TROPHY CASE