compare with GFCI
Posted by Mark from Buffalo, NY, US on May 5, 2008
On it’s most basic level, is this the same principle as a GFCI outlet in a residential application?
No, I would equate a GFCI with a fuse. If the leakage current is greater than 5 mA then the fuse, GFCI would open clearing the fault from the system. High Resistance Grounding actually limits the fault current to a desired value. The GFCI does not limit , it only detects and isolates.