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Old 29-Sep-2019, 5:19 PM   #2
GroundUrMast
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Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,766
Rather than running #6 AWG all the way around or over your house, consider abandoning the isolated ground rod and running #10 AWG from the mast to the electrical service... The electrical service ground should be the first choice in most applications.

1. Unless the clamp is rated for terminating multiple conductors, you should only land one wire per clamp. Off the top of my head, I don't know of any clamps that are rated for termination of multiple conductors per position.

2. I avoid NM staples in exposed areas due to corrosion/rust problems (more cosmetic than anything else), I have found galvanized staples occasionally but tie-wraps with screw eyelets are readily available in my local big-box stores. Example...
https://www.homedepot.com/p/NSi-Indu...00MH/303983049

3. You can add a new clamp to the electrical service ground rod, split-bolt to the grounding conductor that runs between the rod and service panel or use a clamp/connector to bond to the meter base or service panel (these connectors are designed and rated for the specific purpose). Example...
https://www.electricmotioncompany.co...ter-box-clamp/
https://www.homedepot.com/s/intersys...bonding?NCNI-5

4. I would not intentionally connect the mast bonding conductor to anything other than the mast and the electrical service... I have found that insulated #10 AWG wire is less expensive than bare (go figure) so I have always used insulated wire to bond my mast installations. All that said, in normal operation there will not be any voltage present on the mast or grounding conductor so you don't need to be worried about it.
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