ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
High current GFI vs regular GFCI
by HotLine1. 11/16/18 01:03 PM
This anti-theist is priceless!!!
by djk. 11/14/18 07:19 AM
Single phase and what you call it.
by dsk. 11/12/18 11:10 AM
220/230/240V 60Hz Systems
by Albert. 11/07/18 12:48 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 24 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Lucky carpenter #186945
06/06/09 07:14 PM
06/06/09 07:14 PM
P
petey_c  Offline OP
Member
Joined: Jan 2005
Posts: 65
Miller Place, NY USA
Carpenter working in a small strip mall went to remove what he thought was a plumbing waste or vent line. Turns out it was the three phase feed for the unit he was working in. Good thing the power was turned off. He didn't realize it until he was through all four lines. The electrician who wired the mall had schedule 80 on the exterior wall and SCH 40 DWV for the interior. Next door is a day care center.... The carpenter took the rest of the day off to reflect on his good fortune.

[Linked Image]

Last edited by Trumpy; 06/06/09 10:27 PM. Reason: To add picture
Tools for Electricians:
Re: Lucky carpenter [Re: petey_c] #186951
06/07/09 01:43 PM
06/07/09 01:43 PM
P
packrat56  Offline
Member
Joined: Mar 2008
Posts: 76
MT, U.S.
Man, that carpenter is lucky.


I have a sense of adventure, I just keep it leashed with common sense.
Re: Lucky carpenter [Re: packrat56] #186960
06/07/09 09:07 PM
06/07/09 09:07 PM
F
frenchelectrican  Offline
Member
Joined: Feb 2003
Posts: 939
Wi/ Paris France { France for ...
One.,

The carpenter is dangbat lucky He do need to take the day off to get his nerves relax.

Now the other issue is the DWV pipe I do not know how they allow it in first place for myself I will never go that route too easy to make a mistake like that.

Merci,Marc


Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)

Re: Lucky carpenter [Re: frenchelectrican] #186965
06/08/09 09:24 AM
06/08/09 09:24 AM
G
ghost307  Offline
Member
Joined: May 2005
Posts: 959
Chicago Illinois USA
I try to avoid MI cable for a similar reason.
I can just see someone deciding to reroute those Copper water lines...not knowing that it's really the feed to the fire pump.


Ghost307
Re: Lucky carpenter [Re: ghost307] #186991
06/09/09 09:11 PM
06/09/09 09:11 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 7,039
Brick, NJ USA
Petey:
You said....'The electrician who wired the mall had schedule 80 on the exterior wall and SCH 40 DWV for the interior.'.....

Sure it wasn't a plumber? Your area of NY has permits/licenses/inspections right??




John
Re: Lucky carpenter [Re: HotLine1] #186992
06/09/09 09:16 PM
06/09/09 09:16 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 7,039
Brick, NJ USA
Marc: (Frenchelectrician)

DWV (plumbing) pipe is NOT allowed. I have seen plumbing PVC used for irrigation (low volt) wiring for lawn sprinklers, and the occasional homeowner using plumbing pipe, but I have to say in 40+ years.....I have not met a hack that used DWV for a feeder, much less an electrician


John
Re: Lucky carpenter [Re: petey_c] #187000
06/10/09 06:04 AM
06/10/09 06:04 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,250
SI,New Zealand
One thing that seems strange about this.
Isn't DWV white and electrical conduit grey?
Sure, only a real hack would use DWV to enclose wiring with water pipe, but the onus is on the "carpenter" to actually identify the service in the pipe, before cutting it.

By this I mean, if the pipe did not head to a water fitting, would that not make you think twice?

Let's be real here, it only takes a minute or two to trace where a conduit/pipe leads to.

Re: Lucky carpenter [Re: Trumpy] #187006
06/10/09 08:40 AM
06/10/09 08:40 AM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 7,039
Brick, NJ USA
Mike:
I agree with you 100%. Things happen when people hurry a job, or do things 'outside' of their trade, specially during 'demo' stages of jobs. Fortunatley in this situation, the power was off.

A quick side note:
Years back, industrial bldg, interior demo & renovation. WE marked all conduits w/fluor. orange or red spray that where 'live' and were to remain. The 'demo' guys with long oxy.acetleyne torches 'cut' a 4160volt feeder. The cut was 6" from the marking spray, and next to a 4160 sticker. That was one large 'boom'.



John
Re: Lucky carpenter [Re: HotLine1] #187008
06/10/09 09:52 AM
06/10/09 09:52 AM
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
Mike, I think that "DWV" is actually black, and made of a different plastic than PVC. Ordinary PVC glue won't work.

Ampther mistake was calling it 'schedule 40.' Drains need not withstand the same pressures as water pipe, and thus is usually a much lighter material.

In the picture, the stuff looks gray, but that is probably because of lighting, and the 'fuzz' on the cut edge.

As for the carpenter not feeling the wires inside: There have been many times I have used my saw on steel pipe, and have cut through it in a heartbeat. This might have been the case here - the cut was complete before he had any idea there were wires inside.

The 'sawzall' was nearly the last tool I bought; by contrast, for many guys it seems to be the first. I've seen plenty of guys go into a playfull frenzy when the tool comes out, filling them with that pure joy that comes from destroying things.

Re: Lucky carpenter [Re: HotLine1] #187011
06/10/09 12:09 PM
06/10/09 12:09 PM
E
EV607797  Offline
Member
Joined: Oct 2006
Posts: 745
Fredericksburg, VA, USA
Quote
...I have to say in 40+ years.....I have not met a hack that used DWV for a feeder, much less an electrician


Well, John: There's a first time for everything. Here's a pic from a camp ground in South Carolina:

https://i98.photobucket.com/albums/l268/ev607797/Beach09.jpg


---Ed---

"But the guy at Home Depot said it would work."
Page 1 of 2 1 2

Featured:

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

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 8
Popular Topics(Views)
251,513 Are you busy
188,688 Re: Forum
178,391 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.024s Queries: 16 (0.004s) Memory: 1.0277 MB (Peak: 1.2096 MB) Zlib enabled. Server Time: 2018-11-16 20:13:59 UTC