hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Thought you guys would get a kick out of this realtor! LOL!
YouTube strikes again!
- Thread starter hillbilly1
- Start date
- Status
ptonsparky
Tom
- Occupation
- EC - retired
Well the deep earth guys would agree and just keep adding and driving.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Or throw a truckload of them in the lake on a metal line! LOL! Notice how easy he said it was to go from 50 ohms to 25? LOL!
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
I ran across that video while looking at that system. A customer wants it installed at his dock. (Dock Lifeguard) Going tomorrow to quote it and a dock re-wire for them. System looks like it would work, just don’t know about that engineer that did the video. If I was him, I would delete it, and do it over! LOL!
ggunn
PE (Electrical), NABCEP certified
- Location
- Austin, TX, USA
- Occupation
- Consulting Electrical Engineer - Photovoltaic Systems
Maybe I am just dense, but how is a clamp ammeter measuring resistance?
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
It’s a special meter that injects voltage on the wire. Just bought one. It only works if the circuit is complete, then calculates the value by the amount of current flow. I tried it on my ufer ground at the house, and was surprised it was 50 ohms. My ground rod at an outbuilding was 70.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
That type of tester has two coils for the clamp. One injects an AC signal, and the other one measures the current.
- Status