zog
Senior Member
- Location
- Charlotte, NC
Depends on where you are, this map will help, you can do the math from there.
http://www.fcc.gov/mb/audio/m3/index.html
number of ground rods
- Thread starter romeo
- Start date
- Status
Depends on where you are, this map will help, you can do the math from there.
http://www.fcc.gov/mb/audio/m3/index.html
brian john
Senior Member
- Location
- Leesburg, VA
I have tested in the Washington Metro area from less than one ohm to over 100 ohms, for a single 8' electrode. Just west of here over 250 ohms, with 10 rods, a ufer and 150' of #2 bare tinned in the ground.
JohnE
Senior Member
- Location
- Milford, MA
I'll call you Romeo when it's set up. Mike's in charge of MECA in this area and e plans on putting one together in Milford probably in February. That's what he's done the last 2 or 3 cycles.
I've taken my past 2 reviews with Bill and Charlie and I've been very impressed with them.
Scott, it's about 40 minutes from you if you're interested.
JohnE
Senior Member
- Location
- Milford, MA
Agreed. Also as an alternative to any of the other approved electrodes as Charlie pointed out earlier.
Re: 2nd Ground Rod
Re: 2nd Ground Rod
It really depends on the size of the service entering the building, however the building cold water line is a sufficiant secondary ground, also keep in mind that if there is a steel structure it also require additional grounding.
Re: 2nd Ground Rod
It really depends on the size of the service entering the building, however the building cold water line is a sufficiant secondary ground, also keep in mind that if there is a steel structure it also require additional grounding.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Could you explain what you mean by the service size and secondary ground?
Welcome to the forum.
- Status