Above the roof mast question

[Buck Parrish]

I had a truck hit a customers service and tore it off the house this morning.
I need to extend the new mast about 5 ft above the roof. I am going to use my 10 ft piece of rigid on the top. So as not to have a splice on the top.
Do you see any thing wrong with useing emt on the 5 ft. of bottom section?

 

[iwire]

Seriously check with the serving utility, they have a lot more to say about masts then the NEC.

Most likely you could download the info from the utility's web site.

 

[Buck Parrish]

Okay thanks,
I figured that. I guess I am coverd though as far as the emt grounding the rigid conduit.

 

[iwire]

Okay thanks,
I figured that. I guess I am coverd though as far as the emt grounding the rigid conduit.

As far as the grounding you would be all set, the NEC allows EMT for services but 230.28 is worth a look.

 

[Pierre C Belarge]

The POCO in our area only permits RIGID for the mast as a whole.
I would bet that it gets past most of their CSRs.

It might get past some of the EIs as well.

 

[480sparky]

POCO would allow it here if 7' of it is below the roof. Any hihger, and I'm guying it back anyway.

 

[TOOL_5150]

When I use 2" rigid or IMC, POCO here allows up to 54" the roofline without backguying. Thats good, because I hate putting holes in the roof for additional supports - im an electrician, not a roofer.

~Matt

 

[Cow]

Do you see any thing wrong with useing emt on the 5 ft. of bottom section?

Sounds tacky, do you not have access to a threader? Irrigation supply houses sometimes have threaders, we've used them before to thread our conduit before we bought one.

 

[hillbilly1]

Why not a compression beginners coupling? (ridgid threadless adapter or coupling)

 

[iwire]

Why not a compression beginners coupling? (ridgid threadless adapter or coupling)

Pretty much what I do.:smile:

I use a compression connector at the meter if threading is going to be a pain.

 

[charlie]

Seriously check with the serving utility, they have a lot more to say about masts then the NEC. Most likely you could download the info from the utility's web site.

Absolutely! We all have different requirements and since our service drop is to be supported, we get to set up the requirements or we will take our toys and go home.

 

[stickboy1375]

Pretty much what I do.:smile:

I use a compression connector at the meter if threading is going to be a pain.

I do the same as well, its expensive fitting, but who cares.

 

[Buck Parrish]

Thanks, I like the 7 ft rule.
I had to get it back on. Not many places to look for materials Saturday.
The job went smooth.
Here is a clip of it, if your interested. I know I am opening my self up for critics. But have at it. I can take it.

http://www.youtube.com/watch?v=jOoYGCbuUC4

 

[Local Electrician]

I liked the video, good ideal.

 

[Pierre C Belarge]

Buck
The video is very cool, what a great idea.

 

[augie47]

was the 4 conductor SER used in the riser ??

 

[Buck Parrish]

was the 4 conductor SER used in the riser ??

Yeah, That's all I had. :wink: I cut the bare wire back on each end.

 

[augie47]

From Chapter 9, Table 1:

"(9) A multiconductor cable or flexible cord of two or more conductors shall be treated as a single conductor for calculating percentage conduit fill area. For cables that have elliptical cross sections, the cross-sectional area calculation shall be based on using the major diameter of the ellipse as a circle diameter. "

 

[Buck Parrish]

Well I did have to use a little soap. But, I think it is routiely used in 2" conduit.

Hey , any body notice the Emt ? Like Pierre said earlier. Probably no body would notice.

 

[augie47]

Well I did have to use a little soap. But, I think it is routiely used in 2" conduit.

Hey , any body notice the Emt ? Like Pierre said earlier. Probably no body would notice.

what counts is the fact that POCO didn't notice (care)