||01-15-2012 08:44 PM
Question about main panel grounding
I noticed the other day that there is a bare copper wire coming out of the panel and is bonded to the copper cold water pipe. I am concerned that this is not the best idea. After chasing the water pipe back to the main water service I discovered that the pipe going out to the street is plastic. So, the main shutoff in the house is copper on one side but plastic on the other side. There is no wire jumping across the shutoff. There is no wire affixed to the plastic pipe. Is the house properly grounded?
Out side, the main service to the house comes from underground. The service comes into the house via a metal pipe that disappears into the ground. There is also a grounding rod driven into the ground in the same vicinity with a bare copper wire connected to it. Off that wire others go to the cable junction box, the telephone junction box and into the house into the main panel.
The main service, out by the street, comes down the pole and disappears into the ground. From the ground back up the pole, cross our lane (street) to a pole right across the lane and then out to the main pole on the main street.