Ground Rod size

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kwired said:
Why is it a violation as long as there is other compliant electrodes? Isn't it just a supplemental electrode at that point even though it don't qualify as a stand alone electrode? Sort of like driving a rod at a machine in a plant because the manufacturer wants one, as long as it also has bond to the building electrical grounding system, if that manufacturer only specified a 5 foot rod, so what, you still have other compliant grounding electrodes for the premises wiring as well as a mostly useless piece of metal driven in the earth near the machine.
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It's connected to the GES. All connected electrodes must be compliant... even supplementary and auxiliary electrodes.
 
Smart $ said:
It's connected to the GES. All connected electrodes must be compliant... even supplementary and auxiliary electrodes.
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Are we limited to only connecting grounding electrodes to the GES?

Is it wrong to bond a water pipe or building steel that isn't a qualifying electrode to a GEC or make a jumper from another electrode that is qualifying?
 
Thinking it would be safe to drive a new 8 foot rod at there box and run GEC to it,Using two achorn nuts of course.I cant get into the CATV box it has a tamper screw installed,want to use the conductor they left in place on new rod.
 
kwired said:
Are we limited to only connecting grounding electrodes to the GES?

Is it wrong to bond a water pipe or building steel that isn't a qualifying electrode to a GEC or make a jumper from another electrode that is qualifying?
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You can't connect non-qualifying electrodes to the GES. Jumpering from a non-qualifying electrode would be a definite no-no. But you can bond non-current-carrying metal. It's a matter of your reasoning and how you go about it. :angel:
 
The 5 foot ground rod that is there now has CATV ground connected from CATV box.Going to replace ground rod with 8 foot rod,re-attach CATV ground,Plus a GEC.
 
wireday said:
The 5 foot ground rod that is there now has CATV ground connected from CATV box.Going to replace ground rod with 8 foot rod,re-attach CATV ground,Plus a GEC.
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If their box is mounted to the building siding, I'd shoot for structural steel first. Heck, after that I'd probably yank the existing rod and that's probably all I would do. But if I did install an 8' rod, I'd run #6 copper from building steel to the rod. I believe the bonding jumper for com's is only required to be #10 copper.
 
The box is on building.The building is on a slab,its near an entry door, nearest steel is up and over the door, 20 feet down the siding.It would look like hell.Also I cant easily get into the box,it has a tamper screw that Ive never seen before.I would like to use the ground wire that was provided coming out of the box.Its not very long,so I figured change the rod,and dig up our GES and connect.
 
Check out the Internet for sets of tamper resistant screw bits. I have not seen a totally proprietary one yet, but it is a big world. :)

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Smart $ it seems simple enough for me to change ground rods,connect the CATV ground wire to the new ground rod.bring over a ground wire from the GES,and connect that to the ground rod as well.Do you see any violation/problem with that set up?
 
wireday said:
Smart $ it seems simple enough for me to change ground rods,connect the CATV ground wire to the new ground rod.bring over a ground wire from the GES,and connect that to the ground rod as well.Do you see any violation/problem with that set up?
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I do not.
 
Smart $ said:
You can't connect non-qualifying electrodes to the GES. Jumpering from a non-qualifying electrode would be a definite no-no. But you can bond non-current-carrying metal. It's a matter of your reasoning and how you go about it. :angel:
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Which is what it is if it isn't a qualifying electrode, just a piece of metal that someone wants bonded.

If the utility provider wants that non qualifying rod, I'm not going to stop them, as long as they still have a bond to the premises GES they are still in compliance with NEC IMO.
 
kwired said:
Which is what it is if it isn't a qualifying electrode, just a piece of metal that someone wants bonded.

If the utility provider wants that non qualifying rod, I'm not going to stop them, as long as they still have a bond to the premises GES they are still in compliance with NEC IMO.
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I agree. You can bond to anything you want to.
 
kwired said:
Smart $ said:
You can't connect non-qualifying electrodes to the GES. Jumpering from a non-qualifying electrode would be a definite no-no. But you can bond non-current-carrying metal. It's a matter of your reasoning and how you go about it. :angel:
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Which is what it is if it isn't a qualifying electrode, just a piece of metal that someone wants bonded.

If the utility provider wants that non qualifying rod, I'm not going to stop them, as long as they still have a bond to the premises GES they are still in compliance with NEC IMO.
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petersonra said:
I agree. You can bond to anything you want to.
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That's why I stated it the way I did... but as just a hunk of metal, you can't use it to connect grounding [electrode] bonding jumpers, such as the OP'er wants to do after replacing "shorty" with a qualifying rod.
 
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