wiring methods- paralleling neutrals

[Designer69]

on field contractor roughs in more neutrals then come with systems furniture.

so he roughs in 4 total and systems furn. comes with 2

i basically want to say connect 3 of his to one of the systems furn neutral.

btw his are 12ga and Sys furn is oversized 10ga.

my boss says theres a code violation against this... says you can't parallel neutral conductors less than 1/0. but I can't seem to find it anywhere in the code.

is anyone familiar with this situation? Thanks

ps. I'm sure you guys picture the situation but just in case I attached a horrible paint diagram lol

 

[cpal]

ref to 310.4 see if fills in the information you need

 

[infinity]

He needs to use only one #12 neutral. As you stated parallel conductors must be #1/0 or larger.

These types of wiring problems are common when dealing with furniture partitions. Seems that the electrician, engineer and the furniture guy aren't always on the same page.

 

[augie47]

I would not question that it would technically be a violation of 310.4 and I would never condone a violation. That said, since each conductor has adequate amapcity on it's own, and since parallelling is allowed under certain specifics as pointed out in Exception 3, I sure wouldn;t be upset if they were paralleled... excuse me.."connected together"
maybe it's time to coin a new term: "redundant conductors":grin:

 

[iwire]

He needs to use only one #12 neutral.

That can be a problem if the job was roughed with cable.

These types of wiring problems are common when dealing with furniture partitions. Seems that the electrician, engineer and the furniture guy aren't always on the same page.

Big time.