Ground wire in MC cable


Batteries Not Included
United States
JMHO, but the jacket is 'wound' and (i'm told) 5-6 X's the length of interior conductors

they found this out with the old BX

if the shell was energized , it wouldn't trip

but not always because it was made off K&T, because of VD

we'd see this line of dots, in the old horsehair plaster...and we knew....:eek:

That sad part is DIY sites tell HO to take a tester to the box. If it lights, you may now proceed to install 3 prong outlets... just bond to the back of the box.

Home Center books are the same, creating the idea armor is always an low impedance path: