Originally Posted By: pdickerson
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Originally Posted By: lkage
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It’s hard to tell in the photo but is the main bonding jumper running behind the main breaker?
–
“I have never met a man so ignorant that I couldn’t learn something from him.”
Galileo Galilei
Originally Posted By: bking
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Neutrals are typically connected in many other places such as switch boxes and when any two from opposite sides of the panel are connected, this will actually connect both busses together just like the bonding jumper. The other possible path is the earth ground like you mentioned.
Originally Posted By: Thomas Ogryski
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It appears to me that both bus bars are connected by a metal strap that is probably enclosed in plastic that runs behind the main breaker. This is not the main bonding jumper.
Start reading the labels inside the breaker boxes, there is a lot of information on them. The info contained usually indicates where the main bonding jumper is to be installed and would also indicate that the two busbars in this panel are connected together. Also included would be wire sizes, # of equipment grounds allowed per terminal and much more. If you're like me, you'll probably need a magnifying glass in order to read all that small print.
Tom
Originally Posted By: lkage
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| Thomas Ogryski wrote: |
| It appears to me that both bus bars are connected by a metal strap that is probably enclosed in plastic that runs behind the main breaker. This is not the main bonding jumper.
Tom |
I thought the main bonding jumper was "The connection between the grounded circuit conductor and the equipment grounding conductor at the service."
see:
http://www.iaei.org/magazine/98_f/simmons.htm
and
http://www.ul.com/regulators/ode/0801.pdf
Could you help me out? I'm confused.   
--
"I have never met a man so ignorant that I couldn't learn something from him."
Galileo Galilei
Originally Posted By: Greg Fretwell
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The real answer is in the manufacturer’s instructions. Cutler Hammer usually has a strap that goes in a bus bar hole and bolts to the cabinet,. I don’t see that.
Originally Posted By: pdickerson
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