Ground fault- Why doesn't anyone get shocked?

mivey

Senior Member
But the graph is:
...
UL felt it good enough to be taken seriously here using it as a foundation on which industrial GFCI protection is implemented.
LV GFCI and MV are not the same application of course.

But I am theorizing that in some cases it does more harm then good.

2.4kv can be brought into the structure.

There is nothing in the NESC which says this voltage must be cleared under 5 cycles.


I'd like my theory challenged and discussed because its something I'm genuinely curious about.
The NESC does say that the primary and secondary neutral should be connected when you have a MGN system.
 

mbrooke

Batteries Not Included
Location
United States
Occupation
*
LV GFCI and MV are not the same application of course.
True- but the physiological response to any given shock does not change.


The NESC does say that the primary and secondary neutral should be connected when you have a MGN system.

True- but nothing on how to limit the duration of the voltage imposed on the LV neutral.
 
Top