Quote:
Originally Posted by Lee
Thanks, that's all great info, and a big help Gary....
So the common point ground connects to earth of the 240V supply?
I will print that symbol too....  |
That is correct. At one point keeping the resistance as low as possible (i.e. less than 1
Ohm).
Should fault currents ever run through the "hard" protective ground, the 1 M Ohm
resistors limit current flow through any part of the body that happens to be touching
a soft-grounded ESD item to the point of being beneath perceptible.
The same technique is employed in electronic manufacturing and handling facilities
throughout the world.