Re: electrical code?

"Jeff Goldberg" <jeff@w...> wrote:

> Grounding, grounding, grounding! Make sure all your metal

components are

> bolted together.

Will help to understand WHY. Most of the electrical boxes I have open
seem to have only one point earthed. I don't see any wires connecting
all the metal parts together. Probably I haven't open enough boxes.

> If the bolts are over paint, put in bonding jumpers. Make
> sure your machine is bonded to your control cabinet. Make sure
> your D.C.
> negatives are all grounded.

What is a bonding jumper? Are they just simple wires meant to connect
metal parts together?

Thanks

Andrew