On Sunday, September 7, 2014 3:02:40 PM UTC-4, Oren wrote:
On Sun, 7 Sep 2014 11:27:22 -0700 (PDT), trader_4
wrote:
On Sunday, September 7, 2014 1:34:18 PM UTC-4, Oren wrote:
On Sun, 07 Sep 2014 13:02:17 -0400, wrote:
The best electrode these days is the steel in the foundation of your
house, if it is available.
If I'm correct this is what I have. My foundation is cable-tensioned.
I see steel buried in the foundation - between the framing (vertical),
at the access panel for phone, cable, etc. Coming from the foundation.
I see no ground rods anchored in the ground.
Sounds like a Ufer ground, which is what is used around here. They run the
ground wire into steel encased in the basement floor/foundation.
Ufer sounds correct and most likely. The grounding is tied into the
cable-tensioned foundation cables somehow (here). The electric surge
is spread in multiple directions (my guess).
Given that, I still think a whole house surge breaker at the panel is
still a good idea.
They are complimentary. You can have the best grounding system there
is and if 2000V winds up on the two hots from a lightning strike down
the block, the ground system isn't going to do anything to stop it
from reaching eqpt in the building. The whole house surge protector
connected to a proper ground system, will.