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#45932 - 12/09/04 12:03 AM grounding switches  
scameron81  Offline
Member
Joined: Feb 2004
Posts: 75
Healdsburg, ca, USA
I was just wondering how many people ground their switches when using NM in plastic boxes. In the four years I have been in the trade I have never grounded a switch nor have I ever seen a grounded switch. Whenever I ask I am told "thats a dumb rule that nobody does"


Work Gear for Electricians and the Trades

#45933 - 12/09/04 12:31 AM Re: grounding switches  
A-Line  Offline
Member
Joined: Jul 2004
Posts: 272
Utah, USA
Before it was a code requirement I never grounded my switches but ever since it became a code requirement I have always grounded my switches. When the code first changed there were a few times that I did not ground dimmer switches because they didn't have a grounding terminal but now it seems that they all have a ground wire or ground terminal.


#45934 - 12/09/04 01:34 AM Re: grounding switches  
detubbs  Offline
Member
Joined: Nov 2004
Posts: 56
PA
is that what them there little fancy green screws are for?!


Scott

#45935 - 12/09/04 09:45 AM Re: grounding switches  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
Not only do we have to ground the switch on plastic boxes; I got called about a year ago for not grounding the switches in metal boxes. The reason given was: If I had removed the paper that holds the screw to the switch AND the switch rested firmly on the metal box (not by the ears on the drywall) I could forget the grd wire.


#45936 - 12/09/04 10:18 AM Re: grounding switches  
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
I still write it up as a violation once in a while. Most people here have figured out (after 6 years) that it is in fact a requirement.


Ryan Jackson,
Salt Lake City

#45937 - 12/09/04 02:29 PM Re: grounding switches  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
Steve,
Quote
If I had removed the paper that holds the screw to the switch AND the switch rested firmly on the metal box (not by the ears on the drywall) I could forget the grd wire.

The NEC does not require this for switches. Look at the wording in 404.9(B)(1) as compared to the requirement for receptacles in 250.146(A).
Don


Don(resqcapt19)

#45938 - 12/09/04 06:02 PM Re: grounding switches  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
"Snap switches shall be considered effectively grounded if either of the following conditions is met.
(1) The switch is mounted with metal screws to a metal box or to a nonmetallic box with integral means for grounding devices."

I did point this sec out at the time. His response was that "mounted" meant tight and in direct contact. He's a good inspector and normally very fair so it just wasn't worth arguing. We went back and added the jumpers (on 9 switches) like he wanted.


#45939 - 12/09/04 06:21 PM Re: grounding switches  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
I still see switches here in NW Arkansas in BRAND NEW HOMES that DO NOT have the switches grounded. I thought all metal parts of the electrical system Shall be grounded?

Myself, I could not sleep at night if I did not ground switches. Grounding is the MOST IMPORTANT part of ANY electrical system whether it is in a single room log cabin or a Nuclear Plant. What if a person actually got killed or injured from a switch that was not properly grounded? ( I doubt it) The forensic team would tear you apart..and your insurance would then come after you!

I think this is another one of those REGIONAL things...where you dont get shocked in certain parts of the country!

I say if the device has provisions for a ground then it should be used. Besides I cant remember ever seeing a MODERN switch that did not have a ground screw. It cost money to engineer them and to have them put on the switch so if it was not required, the first place you would see it would be from the manufacturer. If it is a two wire system you must use a gfi to replace an ungrounded switch.

Another thing I see a lot of is POINT OF ATTACHMENT ABOVE WEATHER HEAD! I guess nobody cares!

GREENIES ARE CHEAP!

-regards

Mustang


[This message has been edited by mustangelectric (edited 12-09-2004).]

[This message has been edited by mustangelectric (edited 12-09-2004).]


Electricity has no respect for ignorance!

#45940 - 12/09/04 06:30 PM Re: grounding switches  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
Quote
Another thing I see a lot of is POINT OF ATTACHMENT BELOW WEATHER HEAD!


It is required to be below the weather head.

Quote
230.54(C) Service Heads Above Service-Drop Attachment. Service heads and goosenecks in service-entrance cables shall be located above the point of attachment of the service-drop conductors to the building or other structure.

Exception: Where it is impracticable to locate the service head above the point of attachment, the service head location shall be permitted not farther than 600 mm (24 in.) from the point of attachment.


This just came up at another forum and I messed it up big time. shocked

But in the end IMO, we decided the point of attachment is required to be below the weather head.

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#45941 - 12/09/04 06:49 PM Re: grounding switches  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
I am sorry I meant ABOVE THE WEATHER HEAD! LONG DAY!

Thanks for pointing that mistake out..I went back and corrected my post.

-regards

Mustang


Electricity has no respect for ignorance!

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