|
0 members (),
313
guests, and
22
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
Joined: Feb 2003
Posts: 1
OP
Junior Member
|
Can anyone tell me what the distance between my house and my ground rod should be in Washington State?
Thank you
|
|
|
|
|
Joined: Oct 2000
Posts: 2,749
Member
|
jeannem You can look here for that information or you can call and ask them: http://www.lni.wa.gov/scs/electrical/ My guess is that the rod "electrode" must be driven beyond the footing, and that can be 12-18 inches away from the wall. Rods driven to less than their total length of 8 feet, and not flush with or buried, also violate code, and .... create a serious tripping hazard as well! I am aware of a story where a woman tripped and the rod (stuck up out of the ground) pierced through her eye, and out of the back of her head!! [This message has been edited by Joe Tedesco (edited 02-22-2003).]
Joe Tedesco, NEC Consultant
|
|
|
|
|
Joined: Jan 2003
Posts: 4,391
Moderator
|
Rods driven to less than their total length of 8 feet, and not flush with or buried, also violate code, and .... create a serious tripping hazard as well! I agree with the hazzard you describe, but if I pound it flush how does the inspector see the UL stamp if he wants to? What is the code cite for this? [This message has been edited by iwire (edited 02-22-2003).]
Bob Badger
Construction & Maintenance Electrician
Massachusetts
|
|
|
|
|
Joined: Oct 2002
Posts: 70
Member
|
Normally you dig a little hole, put the rod in to the stamp, connect it, have it inspected, cover it. The inspector also usually wants to see the connecting clamp.
Bob
|
|
|
|
|
Joined: Oct 2000
Posts: 2,749
Member
|
250.53(G)
................. The upper end of the electrode shall be flush with or below ground level unless the aboveground end and the grounding electrode conductor attachment are protected against physical damage as specified in 250.10. PS: How many are guilty of cutting a rod electrode?
Joe Tedesco, NEC Consultant
|
|
|
|
|
Joined: Jan 2003
Posts: 4,391
Moderator
|
Thanks Joe, I have always left them up as I said and have never been questioned on it by an inspector, that may be because the large majority of the rods I put in are for temp services, I know the rules are the same but perhaps not enforced as much for the temps.
But the picture in my mind of someone's head impaled on one of my rods is enough to make me pound them flush, in the future.
Bob
[This message has been edited by iwire (edited 02-22-2003).]
Bob Badger
Construction & Maintenance Electrician
Massachusetts
|
|
|
|
|
Joined: Nov 2002
Posts: 558
Member
|
Guilty as charged Joe.If I can't get one all the way in,I add another.Is this the right thing to do?
|
|
|
|
|
Joined: Nov 2000
Posts: 2,148
Member
|
If it is an 8' rod, then 250.52(A)(5) also requires it to be completely in the ground.
Don
Don(resqcapt19)
|
|
|
|
|
Joined: Nov 2002
Posts: 558
Member
|
So if I drive 2 rods 1 only goes in 6'I drive another and abandon the short one?
|
|
|
|
|
Joined: Oct 2000
Posts: 2,749
Member
|
Easiest way out of this situation is to use a 10 foot 5/8 inch ground rod, and drive it in as deep as possible for the 8 feet.
The physical protection would be necessary for the exposed piece if it was subject to physical damage.
Don: If you recall when we met in Chicago a while back, I took a picture of the rod driven in the gas station next door to the hotel below the service they upgraded to a 4 wire wye service and that rod was exposed about 6 inches and was not a 10 foot rod.
I once sent in a proposal to require the rod to be driven to 7 ft 9 inches to allow the end to be visible, and was shot down because the committee wanted me to provide a fact finding report!!
Joe Tedesco, NEC Consultant
|
|
|
|
Posts: 440
Joined: December 2001
|
|
|
|
