high resistance, no trip...

[chris white]

Mike Holt had a video and article about something that is similar, not exactly, but still about the resistance factor in the ground path and whether a CB will trip. He tied a conductor from a power source straight to a ground rod, then amp probed the conductor. It went pretty high, and the 15 or 20A CB didn't trip. Showing that the ground (earth) itself isn't a great conductor with low currents.

 

[bennie]

Re: high resistance, no trip...

It all depends on the size of the overcurrent device, for the earth path to allow initiation.

 

[dereckbc]

Re: high resistance, no trip...

Chris, what is your question? Current is completelty dependant on the voltage and resistance. Earth cannot be used as a fault path.

[ September 17, 2003, 10:45 AM: Message edited by: dereckbc ]

 

[Guest]

Re: high resistance, no trip...

My read is that this post is an answer to a different thread that's already in progress. Maybe this answer needs to be moved into the original thread?

[ September 17, 2003, 10:47 AM: Message edited by: awwt ]