Bonding Jumper Wire Water Heater

The reason the hot and cold lines are jumped bonded at the hot water tank is to protect mr.

Bonding jumper wire water heater.

Service entrance se cable sill plates. If you use your home s main water pipe to ground the electrical system and many homes do you should attach a jumper wire around the water meter in order to provide a better path for the electricity ground path. The parts cost only about 10 and can be installed in just minutes. The bonding wire is a unique part in that some plumbers recommend them and some do not.

Slow down corrosion of the water heater. Adjustable wire holder is designed to be installed below the overhead service entrance cap as a holding device for incoming service entrance wires. The bonding wire is usually a heavy copper wire fastened with brass clamps at one end to the cold water pipe and at the other end to the hot water pipe. The bonding jumper may be required to ensure a reliable bond in a metal water piping system.

Another function of the bonding wire is to maintain the electrical grounding pathway on the water pipes. A local inspector is saying that the jumper must be sized to match the size of the building service which in our case would require a 3 0 jumper. This bonding is essential to maintain continuous ground path. The jumper protects the technician from becoming energized by improper current on the system ground by forcing the current to go through it.

Water heater or meter bonding kit. This process is thought to prevent electrolysis and corrosion which can extend the service life of the water heater and prevent leaking. The bonding wire can redirect a small electrical current that passes through the copper piping to the steel fittings of the water heater. Some experts believe a bonding jumper helps water heaters last longer by reducing corrosion in the tank caused by electrolysis.

What section of the nec addresses how to determine the size of the bonding jumper required for a water heater. Service entrance se adjustable wire holder. When in use the bonding wire can serve two purposes. Kit includes two brass ground clamps and copper conductor.

Benefits of a bonding wire. If there is no direct metal to metal connection between the hot and cold water pipes the bonding jumper from the cold to the hot water line must still be installed but the bonding jumper would be sized in accordance with section 250 122. This bonding jumper is sized using the same section and table used for the grounding electrode conductor for the service. It is made of.

This seems to be overkill. If no jumper wire is installed a surge in electricity could cause damage to the water meter in some cases. Also a jumper should be on the pressure reducer valve for the same reason.