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Does it really matter if you run the ground wire from the water main to the neutral or the ground bar? Since they're connected anyway what's the danger in connecting to the ground bar instead of the neutral?
 

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Does it really matter if you run the ground wire from the water main to the neutral or the ground bar? Since they're connected anyway what's the danger in connecting to the ground bar instead of the neutral?

Non at all,you could even tap in your own lug if you want.
 

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The grounding conductor should be connected as close as possible to the service neutral conductor. The reason for this is you want the least amount of current flowing though the grounding conductor, though the earth, then back to the source. The further away that connection is the higher the resistance between the service neutral lug and the grounding conductor. With a higher resistance more current flows though the grounding conductor though the earth and back to the source compared to if that connection was closer.

Connecting the grounding conductor to ground bar is not dangerous. Its just not the best way to do it.
 

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Doesn't make a difference at all if it's the main.. though I've heard some good scenarios explained where separating grounding and neutrals helps in troubleshooting.
 

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Does it really matter if you run the ground wire from the water main to the neutral or the ground bar? Since they're connected anyway what's the danger in connecting to the ground bar instead of the neutral?
I can think of numerous scenarios Aegis, but the number one fundamental to keep in mind is not creating another neutral path

~CS~
 

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Does it really matter if you run the ground wire from the water main to the neutral or the ground bar? Since they're connected anyway what's the danger in connecting to the ground bar instead of the neutral?
Not sure about the CEC but the NEC is pretty specific for the grounding electrode conductor.


250.24 Grounding Service-Supplied Alternating-Current
Systems.

(A) System Grounding Connections. A premises wiring
system supplied by a grounded ac service shall have a
grounding electrode conductor connected to the grounded
service conductor, at each service, in accordance with
250.24(A)(1) through (A)(5).



The NEC permits the GEC to connect to a ground bar but only in accordance with:

250.24(A)(4) Main Bonding Jumper as Wire or Busbar. Where the
main bonding jumper specified in 250.28 is a wire or bus-bar and is installed from the grounded conductor terminal
bar or bus to the equipment grounding terminal bar or bus
in the service equipment, the grounding electrode conductor shall be permitted to be connected to the equipment
grounding terminal, bar, or bus to which the main bonding
jumper is connected


Pete
 
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