ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
HVDC Greece to Crete
by gfretwell - 08/06/20 02:28 AM
310.15 (B) 7 Feeders
by HotLine1 - 07/31/20 02:29 PM
What would be the ideal solution?
by Fleppin - 07/21/20 12:42 AM
NESC question
by gfretwell - 07/16/20 04:17 PM
Code Violation or just not good Practice?
by HotLine1 - 07/16/20 03:03 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 14 guests, and 20 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
-Bathroom Ground- #120981 06/03/05 12:10 AM
Joined: Dec 2000
Posts: 4,283
electure Online Sleepy OP
Member
I discovered this one during a bath remodel.

Under the lavatory, buried in the wall-


[Linked Image]


The conductor was spliced with a barrel crimp to 4 conductors above the ceiling, and the 4 wires were attached to the boxes in this fashion-


[Linked Image]


The branch circuit was supplied by this NM cable, containing a #16 ground wire, which was connected in the usual manner at the panel-


[Linked Image]


What do ya' think?




[This message has been edited by electure (edited 06-03-2005).]

Tools for Electricians:
Re: -Bathroom Ground- #120982 06/03/05 12:25 AM
Joined: Feb 2005
Posts: 693
L
Larry Fine Offline
Member
Homestly, I think it's one of the better-done retro-grounding jobs I've seen. At least the nut and bolt were used for no ther purpose.


Larry Fine
Fine Electric Co.
fineelectricco.com
Re: -Bathroom Ground- #120983 06/03/05 12:27 AM
Joined: Mar 2001
Posts: 333
S
stamcon Offline
Member
The ground strap is very common(original to the house)in the Bay Area, but I've only seen the reduced ground NM a couple of times.

steve


Steve
Re: -Bathroom Ground- #120984 06/03/05 09:29 AM
Joined: Nov 2001
Posts: 745
M
mamills Offline
Member
That's not a PLASTIC pipe in that first pic, is it? [Linked Image]

Mike (mamills)

Re: -Bathroom Ground- #120985 06/03/05 08:21 PM
Joined: Feb 2002
Posts: 183
N
n1ist Offline
Member
Looks like 1/2" copper to me...
/mike

Re: -Bathroom Ground- #120986 06/03/05 11:38 PM
Joined: Dec 2000
Posts: 4,283
electure Online Sleepy OP
Member
Yes, it's 1/2" copper, and cast iron drain with really-by-golly lead and oakum joints.

This house was custom built in 1958. This is original as installed.

Re: -Bathroom Ground- #120987 06/04/05 12:40 AM
Joined: Sep 2004
Posts: 167
S
sandsnow Offline
Member
Hey Dude!!!
What were you doing in my house????
My place was done pretty much the same way.
See here https://www.electrical-contractor.net/ubb/Forum5/HTML/000871.html

The ground was attached by the same type of clamp to the local water line in the bathroom and then around the nail for the box.


Larry LeVoir
Inspector
City of Irvine, CA
Re: -Bathroom Ground- #120988 06/04/05 04:36 AM
Joined: Jul 2002
Posts: 8,329
Trumpy Offline
Member
I'd be interested to see how connections like this would actually carry the high fault current that they are supposed to. [Linked Image]
What sort of filler is that, in that piece of NM cable?.
It looks like it would burn pretty readily. [Linked Image]

Re: -Bathroom Ground- #120989 06/04/05 02:47 PM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
Wasn't the cold water allowed to be used as a GEC/EGC up until prior to '93 NEC? When did the 5' rule come up for point of connection to water? It was the way it was done for a while, not sure when that 'while' was though. It seems 40's- 60's.

Trumpy, that filler is craft paper, still used in romex, and other cables.


Mark Heller
"Well - I oughta....." -Jackie Gleason
Re: -Bathroom Ground- #120990 06/04/05 05:08 PM
Joined: Mar 2005
Posts: 1,803
Alan Belson Offline
Member
I remember dad using that cast-iron pipe. To seal it they rammed tow (oakum) and boss-white, (a mix of powdered chalk and linseed oil), in the annulus, followed by lead-wool hammered in with a wooden spoke. Another American pipe used in the UK at that time (late forties) was made of paper-pulp and molten tar,(made in a vacuum), with the ends taper machined. It was brilliant- light, strong & supple with foolproof joints- just hammered together with a dolly. Then upvc arrived.
Alan


Wood work but can't!
Page 1 of 2 1 2

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Bill Addiss
Bill Addiss
NY, USA
Posts: 3,959
Joined: October 2000
Show All Member Profiles 
Top Posters(30 Days)
BigB 3
Popular Topics(Views)
268,631 Are you busy
202,969 Re: Forum
191,344 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3