Electrician question?

rack04 · 11-19-2009, 02:12 PM

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?

Old Sailor · 11-19-2009, 08:34 PM

Quote:

Originally Posted by rack04

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

11-19-2009, 02:12 PM	#1
rack04 Lebowski Urban Achiever Join Date: Oct 2008 First Name: Justin Location: Dallas, TX Posts: 1,023 Trading: (20)	Re: Electrician question? 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? __________________ "Why don't you put them in your secret compartment" - 12stones (Ricky)