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Old 11-19-2009, 08:34 PM   #38
Old Sailor
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First Name: Dave
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Default Re: Electrician question?

Quote:
Originally Posted by rack04 View Post
Since I got so many great responses with my first question I decide to throw another one your way.

I'm trying to properly ground my roof mounted antenna. I have come up with the following two options:

1.) Run #10 thhn stranded wire from the antenna mast to the coax grounding block at the point of entry. Run #10 thhn stranded wire from the coax grounding block to a driven 4 ft copper ground rod. Run #6 thhn stranded wire from the 4 ft copper ground rod to the system ground.

2.) Run #10 thhn stranded wire from the antenna mast to the 2" rigid riser. Run #10 thhn stranded wire from the coax grounding block to a driven 4 ft copper ground rod. Run #6 thhn stranded wire from the 4 ft copper ground rod to the system ground. Similar to the picture below except I will be making the connection to the rigid riser above the roof jack.



Option 2 is preferred because I wont have to run the #10 thhn stranded wire along the roof, around the awning, and down the brick wall to connect to the grounding block. Thoughts?
Option 2

fyi - http://members.cox.net/pc-usa/station/ground3.htm
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