grounding terms help

[larrywd]

Equipment bonding jumper, system bonding jumper, grounding electrode conductor, main bonding jumper

I used to think I had these terms down-pat, but now I am unsure. Does anyone have an illustration or way to keep these terms straight in my head?
Thanks,
Larry

 

[Twoskinsoneman]

Equipment bonding jumper, system bonding jumper, grounding electrode conductor, main bonding jumper

I used to think I had these terms down-pat, but now I am unsure. Does anyone have an illustration or way to keep these terms straight in my head?
Thanks,
Larry

Mike H has many awesome graphics of a lot if not all these terms.
Head over to his free graphics page
http://www.mikeholt.com/freegraphics.php?id=gvb

Brows through them :thumbsup:
Here's a good example.

 

[bphgravity]

The main bonding jumper & system bonding jumper serve the same purpose but for two different systems. They both connect the grounded circuit conductor with the equipment grounding conductor at a service or SDS.

MBJ = Service / SBJ = SDS

The grounding electrode conductor is used to connect a service or SDS to a grounding electrode (earth).

The equipment bonding jumper is used to connect portions of the equipment grounding conductor together to maintain the path for fault current.