#10 stranded wire

[charlie b]

I have a contractor asking me for an exception to a specification requirement that says #10 and larger shall be solid. They want to use stranded #10 for a specific application. I have no basic objection, but I would like a sanity check on their reason for the request. They stated, "10AWG can be pulled through RMC only on a straight line. We require 10AWG for the Water Heater line with multiple 90 degree bends in the RMC conduit."

Does anyone have an opinion on the statement that "10AWG can be pulled through RMC only on a straight line"?

 

[roger]

We use #10 solid regularly, it is specked on 95% of our jobs and we never have problems pulling it in any type of conduit run

Roger

 

[iwire]

I agree with Roger, we do it often.

 

[peter d]

#10 solid is fine when it's pulled point to point and being terminated at each point. Pulling it in and out of boxes and LB's is no fun at all. :happyno:

 

[don_resqcapt19]

We always take exception to using #10 solid. What advantage is there to using solid?

 

[iwire]

We always take exception to using #10 solid. What advantage is there to using solid?

It meets the job specs and have never found it to be a hardship to use.

 

[Steviechia2]

We use #10 solid regularly, it is specked on 95% of our jobs and we never have problems pulling it in any type of conduit run

Roger

What is the reason solid wire is specked on your jobs?
I have heard of this in bio tech buildings requiring solid so that the bacteria, germs, ect. will not follow up in between the strands

 

[peter d]

It meets the job specs and have never found it to be a hardship to use.

A hardship? No. But using #10 stranded is definitely easier. :thumbsup:

 

[iwire]

My personal opinion is that solid is much better in wet locations. In dry locations the only advantage to me is ease of termination.

 

[iwire]

A hardship? No. But using #10 stranded is definitely easier. :thumbsup:

I am just so used to working with solid MC in 10 AWG I don't find 10 THHN hard to work with.

Unless it is in walker duct, then it is awful. :rant:

 

[peter d]

I am just so used to working with solid MC in 10 AWG I don't find 10 THHN hard to work with.

Unless it is in walker duct, then it is awful. :rant:

Yes, I know what you're saying. I wasn't thinking of MC cable so much as a 3/4" or 1" EMT/PVC with 6, 7 or 8 solid #10s in it, pulling through multiple j-boxes. I guess we have to define our terms here. :lol: Remember the fabric store and all those j-boxes and #10?

 

[iwire]

Yes, I know what you're saying. I wasn't thinking of MC cable so much as a 3/4" or 1" EMT/PVC with 6, 7 or 8 solid #10s in it, pulling through multiple j-boxes. I guess we have to define our terms here. :lol: Remember the fabric store and all those j-boxes and #10?

I am fine with it in pipe.

As far as that job if you recall I asked our Irish buddy to go easy on the 150 offsets he made between boxes.

 

[charlie b]

Thanks everyone. One more followup question: Where in the NEC is the 360 degree limit on bends between pull points located? I just paged through 300 and 310 and could not find it.:happysad:

 

[peter d]

I am fine with it in pipe.

As far as that job if you recall I asked our Irish buddy to go easy on the 150 offsets he made between boxes.

Yes, the offsets, boxes, LB's..it seemed to take forever to pull those wires.

 

[roger]

Thanks everyone. One more followup question: Where in the NEC is the 360 degree limit on bends between pull points located? I just paged through 300 and 310 and could not find it.:happysad:

Charlie, look at any of the conduit or tubing article 3xx.26 sections


Roger

 

[peter d]

I am fine with it in pipe.

Well that's because you're the almighty iwire. :lol:

 

[iwire]

Well that's because you're the almighty iwire. :lol:

Or it could be that I am in a position to make others do it while I type on a keyboard.

 

[hardworkingstiff]

Or it could be that I am in a position to make others do it while I type on a keyboard.

I'm jealous. :lol:

 

[hardworkingstiff]

Charlie, look at any of the conduit or tubing article 3xx.26 sections


Roger

You've been to JCR classes?

 

[iwire]

I'm jealous. :lol:

I would not be, I spent last night working pulling long cable runs across a store ceiling.