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#101391 - 03/13/07 09:03 PM Grounding Pigtails  
Ewire88  Offline
Junior Member
Joined: May 2006
Posts: 17
Wheelersburg, Ohio USA
I am working on a school renovation and consversion of a middle school to an elementary and the old 1930's and 50's parts were razed and the 1995 gym and class rooms addition was left standing and new parts were added to the 1995 part to make a new building. The existing boxes and conduit where left remaining ( wire and devices removed) in the 1995 part and I see no evidence of grounding pigtails and I had to retrofit the boxes with ground pigtail clips when I installed devices. Did the NEC in 1995 require metal box pigtails for bonding?


Aaron

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#101392 - 03/14/07 01:07 AM Re: Grounding Pigtails  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
Were they self grounding devices (little brass clip on the yoke)?


Greg Fretwell

#101393 - 03/14/07 01:19 AM Re: Grounding Pigtails  
ShockMe77  Offline
Member
Joined: Jun 2005
Posts: 821
Rahway, New Jersey
For some reason I am under the impression that 250.148 is a relatively new code. I may have read that over at the Mike Holt forum.


#101394 - 03/14/07 03:36 PM Re: Grounding Pigtails  
Ewire88  Offline
Junior Member
Joined: May 2006
Posts: 17
Wheelersburg, Ohio USA
I am pretty sure they were self grounding and they were spec. grade and we still have allot of old devices in our job site trailer.I am sorry that I don't know the code that well because I am an apprentice but I am still learning.


Aaron

#101395 - 03/14/07 07:58 PM Re: Grounding Pigtails  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
"Sherman set the way back machine to 1993"
In the 93 code the 250.148 language was in 250.114, pretty much the same way.
Self "grounding devices" was in 250.74 ex2


Greg Fretwell

#101396 - 03/15/07 08:44 PM Re: Grounding Pigtails  
ShockMe77  Offline
Member
Joined: Jun 2005
Posts: 821
Rahway, New Jersey
^^

Is this what I have to look forward to (referring to old codes as they change and I get older)? laugh

Ewire, there's plenty of "electricians" out there who aren't familiar with article 250.148. It's good that you came here to ask. Some don't even bother to do that!


#101397 - 03/16/07 02:02 AM Re: Grounding Pigtails  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
I imagine there might be some 1&2 family guys who have never used a metal box. I sure don't see them much in residential.
Yup, some day you will be telling your young guys how it was way back in the olden days when you actually had to put locknuts on Romex connectors and tighten 2 screws.
Then you will get the blank stare and the question "what was this Romex stuff"?


Greg Fretwell

#101398 - 03/16/07 07:02 PM Re: Grounding Pigtails  
Ewire88  Offline
Junior Member
Joined: May 2006
Posts: 17
Wheelersburg, Ohio USA
On the construction site I am working on, I am glad to see everything grounded such as the metal framing beams, cable trays, plumbing and even the metal roofing. We even have a lighting protection service subcontracted. By the way here is a link to the pictures of the jobsite below. Click on the date first that says 2003-06 and the newest part you see is the part left standing and new pics should be added soon and this school should be finished early of next month.

http://www.cmw.osfc.state.oh.us/guest/photoarchive.cgi?9184+


Aaron

#101399 - 03/17/07 09:31 PM Re: Grounding Pigtails  
Mark20  Offline
Member
Joined: Mar 2007
Posts: 25
Maryland
just remember 2 important things for surface mounted boxes, first the receptacles must be mounted directly to the box (if you are using an rs cover then you must provide a ground tail) second you must remove at least one of those paper washers that come on the 6-32 screw (if applicable). also if the boxes are flush mounted then you must use receptacles with the spring-type grounding strap.


#101400 - 03/21/07 10:05 PM Re: Grounding Pigtails  
Ewire88  Offline
Junior Member
Joined: May 2006
Posts: 17
Wheelersburg, Ohio USA
I worked in the kitchen the other day and the print calls for all recepticals to be gfi and some of them are not near water and what does code say about gfci's in commercial kitchens?


Aaron

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