On 8/23/2021 6:42 PM, James Bennett via Elecraft wrote:
Per N.E.C. specs, I need to tie the ground system at the shack entrance to the house utility ground - probably 150’ or so from the coax entrance panel to that Ufer spot.
There's a bit more to it than that. In essence, more grounds are better and you can have as many as you want, but they must ALL be bonded together. That includes power, telco, CATV, shack, etc.
My electrician said that a #4 solid copper wire running from the coax entrance panel to the Ufer point would suffice for keeping the grounds together. Looking at the ARRL book on grounding and bonding, it appears that what I’m going to do is to install a “perimeter ground.”
Not quite -- it would be a perimeter ground if that #4 (yes, big enough) were connecting driven rods spaced at least 1.5 - 2x their length around the perimeter.
Do you have the first or second edition of the book? Ward and I worked through some of the issues involved with situations like yours for the second edition.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
