Is grounding to water pipe code?

Section 250.50 of the National Electrical Code (NEC) requires that a metal underground water pipe in direct contact with the earth for at least 10 feet or more be used as one of the grounding electrodes for the electrical service to the building.

Do you have to ground to water pipe?

The NEC requires that water pipes be bonded to ground, even if these metal pipes are not used as part of the grounding system.

Does water bond have to be continuous?

Yes, you can. It does not have to be continuous. You may even use other parts, except a gas pipe, as a bonding conductor.

What is the code for grounding?

Article 100 of the NEC defines ground as “the earth.” Section 250.4(A)(1) states that grounded electrical systems “shall be connected to earth in a manner that will limit the voltage imposed by lightning, line surges, or unintentional contact with higher-voltage lines and that will stabilize the voltage to earth during …

Can I run a ground wire to a water pipe?

Clifford A. Popejoy, a licensed electrical contractor in Sacramento, California, replies: To answer your second question first, no, you can’t grab a ground from a cold-water pipe.

Why do water pipes have to be earthed?

Plastic pipes make for a safer electrical installation and reduce the need for earthing. They know that the risk and severity of an electric shock is increased as a result of the presence of water. This may be the reason for the concern that water in plastic pipes may conduct electricity and that bonding is required.

Can you bond water pipe anywhere?

Bonding water piping systems is different than using the water pipe as an actual grounding electrode. This bonding can be done anywhere along the metal water piping system and is not required to be done within the first 5 feet where the piping system enters the building.

Why is there a ground wire on my waterline?

The main purpose of this bond is to make sure that the metal water pipe is not affected by the service grounded conductor. If the metal water pipe becomes energized, there is a path back to the service for electrical current flow.

What type of fitting is not permitted to connect a grounding system?

250-8: “Connection of Grounding and Bonding Equipment. Grounding conductors and bonding jumpers shall be connected by exothermic welding, listed pressure connectors, listed clamps, or other listed means. Connection devices or fittings that depend solely on solder shall not be used.