Home Grounding and Bonding For TV and Telephone MediumShotWaterHeaterWithNewBond-CopyRight-460x345-IMG_5660


A close shot of the grounding electrode conductor as it enters the main electrical panel.

In addition to the other bonding and grounding, I also bonded all of the interior metal piping which includes the cold water pipe to the hot water pipe and the gas pipe as required in article 250.104 (A) and (B) of the National Electrical Code . If this house contained a hot water baseboard heating system with metal pipes, those would have to be bonded to the cold water pipe as well. It is very convenient to bond all three pipes at the water heater and they are accessible for the inspector to see. Please note that some areas of the country may not permit the gas pipe to be bonded.

Inside of the main electrical panel. An arrow points to the grounding electrode conductor.
This is how a water meter should be jumped out with a ground bonding jumper. #6 copper wire is sufficient, but it is #4 in the picture.