 UHFAll static, all day, ForeverPremium,MVM
join:2002-05-24
 ·Callcentric
 ·DIRECTV
 ·surpasshosting
·Dish Network
·VOIPo
| reply to Splitpair
Re: Grounding / Bonding question Here's a crappy diagram. Ground rod at the meter base, bonded to the panel located directly on the other side of that wall (but in the basement). House didn't show up in the diagram, but the outer two rods are at the corners of the house, bonded with #2 (buried) to the original ground rod.
I'm adding the SPD and ground bar a the location shown, was planning to bond it back to the middle ground rod with 3" strap.
I was also planning to run 3" strap from the ground bar into the basement, where it will run right past the breaker panel on it's way to the radio room.
Also considering a couple more ground rods, somewhere between 2 and 6. Can never have too many. Two would go south in that picture, and then possibly extending off the two outer rods towards the north, a partial ring around the house. But that's only if I get really ambitious, I'm sitting on lime rock so driving ground rods can be an exercise in futility at times. |
|
 whizkid3Premium,MVM
join:2002-02-21
Queens, NY
kudos:8 | said by UHF:I was also planning to run 3" strap from the ground bar into the basement, where it will run right past the breaker panel on it's way to the radio room. Perfectly acceptable (assuming your wire gauges are right). However, you must have equipment safety grounds that run to the ground bus in the panelboard for any ham gear powered from this panel. As well, you should bond the strap that runs from your copper bus to the ground/neutral bus in the panelboard. From that point to the external copper bus, your strap will be part of the grounding electrode system. Tie your antenna and mast grounding system to the copper bus. I would also suggest gas-discharge tube surge arrestors on any coax cable at the point of entry, with the surge arrestors bonded to the external copper bus. If you really want to go all out, construct a copper or aluminum plate grounded and mounted on the wall where the coax lines enter the house to mount bulkhead type gas-disharge tubes to. (Use appropriate surge protection for other type antenna cables, as well.)
said by UHF:Also considering a couple more ground rods, somewhere between 2 and 6. Can never have too many. Two would go south in that picture, and then possibly extending off the two outer rods towards the north, a partial ring around the house. But that's only if I get really ambitious, Why not. For that matter, how about a grounding counterpoise with lightning rods and down-conductors on your masts? |
|
UHFAll static, all day, ForeverPremium,MVM
join:2002-05-24 Reviews:
·Callcentric
·DIRECTV
·surpasshosting
·Dish Network
·VOIPo
| Equipment safety grounds? Wouldn't that be the third wire on the AC?
And as far as bonding the strap to the neutral bus, can I simply attach it to the side of the panel, with paint removed, etc? The ground bus is bolted the cabinet of the panel anyway, and the neutral bonding screw is installed.
I do have an actual copper ground bar like those used at a commercial tower site with insulated standoff, etc (»store.electrical-insulators-and-···1kt.html) that is being used at the coax entry point. And appropriate Polyphasers. At this point, the only antenna is a wire dipole supported by trees. If I ever get a tower or HF vertical installed I will have additional ground rods installed at the base of those bonded back to the ground bar. |
|
whizkid3Premium,MVM
join:2002-02-21
Queens, NY
kudos:8
1 edit | said by UHF:Equipment safety grounds? Wouldn't that be the third wire on the AC? Yes. said by UHF:And as far as bonding the strap to the neutral bus, can I simply attach it to the side of the panel, with paint removed, etc? The ground bus is bolted the cabinet of the panel anyway, and the neutral bonding screw is installed. Provided you use the proper lugs, and no sheet-metal screws - nut & bolt it with washers and a lock next to the nut. I would c-tap it and run a wire to the bus. |
|
 SplitpairPremium
join:2000-07-29
Cow Towne
kudos:3 | reply to UHF
said by UHF:And as far as bonding the strap to the neutral bus, can I simply attach it to the side of the panel, with paint removed, etc? Here's an example of one way to do so.
Wayne
--
If you cannot fix it with a buttset and some beanies you ain't a technician.
|
|
UHFAll static, all day, ForeverPremium,MVM
join:2002-05-24 | Exactly what I had in mind. Have some T&B crimp on lugs like the ones in your pic. |
|
|
|
UHFAll static, all day, ForeverPremium,MVM
join:2002-05-24 | Decided not to bond to the breaker panel for the time being. Got the antenna protected now at least, and cleaned up a lot of other cables for TV/Satellite that were driving me crazy. |
|
