ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 260 guests, and 20 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
#110555 05/12/06 09:54 PM
Joined: Jul 2002
Posts: 8,443
Likes: 3
Trumpy Offline OP
Member
Photo's and info submitted by Harold Endean:

Quote
Here is an example of a homeowner trying to do his own service. Outside was a piece of plumbing pipe with thre 3/0 copper wires running into the service in the basement. Inside he stopped the pipe and ran the wires directly into the service panel. After I fail him the first time, he removed the 3/0 wires and ran 4/0 SEU cable throught the same pipe. After a few trips there I think I finally set him straight. Unfortunately, I still might have to go back one more time to final out his job.

[Linked Image]


[Linked Image]


[Linked Image]


[Linked Image]

Stay up to Code with the Latest NEC:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

#110556 05/13/06 03:32 AM
Joined: Jul 2002
Posts: 8,443
Likes: 3
Trumpy Offline OP
Member
Harold,
Is that the finished product?.
If it is it will leak like a sieve!.
Are you allowed to clamp wires like that in an entry to a panel?.
Sure there are bushings, but what is the bare minimum in this respect?.
I see a green wire to the left of the 2nd pic, it looks like it is going through the top of the clamp, but seems to be outside of the thread in the lower part of the panel??!.
It makes me wonder if this wasn't a Home Depot advised install?.
Customer must have asked "what can I use for the bend into the house?"
HD guy "Use this, water or wires, it's all the same, the check-out guy told me so".

#110557 05/13/06 07:33 AM
Joined: Sep 2005
Posts: 39
M
Member
Trumpy,

I think the green wire has it's own clamp.

What's the silver stuff at the bottom of the last two pics? Coax?

Mike

#110558 05/13/06 07:51 AM
Joined: Dec 2001
Posts: 2,498
T
Member
Black wire with white paint splatters, probably coax.

#110559 05/13/06 12:37 PM
Joined: Aug 2001
Posts: 466
Likes: 1
J
Member
Looks like they found a way to solve the question of whether or not a bushing is needed on a male adapter.

#110560 05/13/06 09:14 PM
Joined: Mar 2004
Posts: 391
B
Member
I really don't get it. These amature service upgrades. How in the world do these people know how to properly do a load calc. and determine conductor sizes, but can't figure out things like putting conductors in conduit?

It's like being able to rebuild a carbeurator but not knowing how to put gas in the tank.

-John

#110561 05/14/06 08:19 PM
Joined: Nov 2001
Posts: 745
M
Member
Harold:
Sure glad you failed him on the 3/0's. The guy looks like he got pretty rough with them while installing. Notice the damaged insulation.

Mike (mamills)

#110562 05/15/06 12:12 PM
Joined: Nov 2002
Posts: 134
R
Member
Back when I couldn't spell NEC I did a DIY upgrade from 60A to 200A service on my house. I nicked up the outer coating on the THHN I installed; pretty badly. I made a point of asking the inspector about it and he told me not to worry since that covering was only there for oil protection and oil wasn't likely a problem in my house. (no I haven't opened an oil change shop in my basement since then...)

Any thoughts.

Also what's the SEU cable on the left? What's the service size. 200amps hence the failure of the 3/0 right?

RSlater,
RSmike

#110563 05/16/06 10:10 AM
Joined: Feb 2004
Posts: 75
S
Member
Its always been my understanding that the nylon jacket is there simply for mechanical protection. I remember reading somewhere (I can't remember where) that when the UL tests wire they remove the nylon jacket from the wire.

#110564 05/16/06 01:50 PM
Joined: May 2005
Posts: 984
Likes: 1
G
Member
That's what a manufacturer's rep told me about the nylon jacket.
I asked him what about if the jacket gets damaged when it first comes off the reel? Does the insulation get damaged while being pulled through the rest of the run?
He told me "it's UL listed and everyone uses it...NEXT QUESTION?"
Anybody who ducks a simple question in that manner makes me suspicious. Since I've have problems in the past with THHN, I prefer to avoid it whenever possible (it's not often possible).


Ghost307
Page 1 of 2 1 2

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5