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It is true that a cold water pipe will work as a ground but it should not be trusted. If the wiring in a house is older then the introduction of electrical grounding I would have to recommend the instillation of new grounded wiring. Grounding using the plumbing system, past where the cold water pipe enters the house, can present a hazard to plumbers. They can receive electrical shock if they remove a piece of pipe that was part of the groundings pathway. Also, as plumbing codes change they do not take into account electrical need. In many areas of the united states plumbers are using non-metallic piping and fitting. If this is added to your system you will lose your grounding.
It must be grounded outside with two 8' copper ground rids driven fully into the ground. One under the meter and one 6' to either side connected together with the proper size copper ground wire. The above answer leaves out the requirement for a grounding connection to a metal water pipe. The NEC actually makes the ground rods supplemental to the water pipe. We don't usually consider the water pipe as the primary grounding electrode but that is how it is treated in the code. Depending on the size of your service, the grounding electrode conductor to the water pipe may actually be a different size than what connects to the ground rods, which are allowed to be connected with 6 AWG copper regardless of the size of service.
DON'T CONNECT A GROUND WIRE TO A COLD WATER PIPE!!! Use ground rods in accordance with local codes. When in doubt, contact a local electrician or the local building and zoning office of your city or county. Connecting a ground wire to your cold water pipe can result in electrolysis that will eat away at you water pipe. ---------------- Metal underground water pipe is the first grounding electrode listed in the NEC. It is still commonly used in residential installations and is used in commercial installations when available. When the water pipe is used as the primary grounding electrode, it must be supplemented with another electrode which is most commonly a ground rod. Generally speaking, a 325 amp service requires 350 kcmil copper conductors for residences or 400 kcmil copper conductors for commercial installations. In either case these require a grounding electrode conductor of 1/0 ("one ought") copper.
in this method a galvonise iron pipe of 38mm internal dia 2.5 mt lenght having 12mm dia holes on its surface
A pipe. The volume of water available can be compared to voltage. The diameter of pipe could be compared to resistance with smaller diameter being larger resistance and the flow of water past a point in pipe is equivalent to current flow.
Supply coming from water source is a water service line.
Water main coming into house usually 3/4" K copper pipe. Depending on local plumbing code, fitting usually is flared or soldered.
A cold water pipe is usually a ground. Nowadays with plastic pipe you can't be sure. If the pipe out of the foundation is copper chances are it is good. You can check it with a meter. You can also get an electrical ground rod and install it. It is just a 10' spike that you hammer into the ground and clamp a wire to. It will also give you a good ground. You may already have one at your home. Check by the service entrance for electricity and phone.
That is the correct spelling of pipe, which has a number of uses.
Pipe bracket.
Calgary Police Service Pipe Band was created in 1975.
The electrical code states that if the grounding electrode is to be a metallic water pipe it is to be attached to the street side of the water meter or if not possible as near as practicable to the point of entrance of the water service in the building. You will need to purchase a pipe grounding clamp to make the connection. To stop stray circulating currents from happening all metallic systems should be bonded to each other and to ground.DON'T!You shouldn't connect electrical service ground wires to pipes; it causes electrolysis of the pipe and slowly dissolves some of the metal.Ground wires should be connected to a ground rod that is driven into... the ground.
Black of course
Make the pipe longer or shorter.
ABOVE the sewer line and on an angle away
Pipe that meets the requirements of sour gas service per NACE MR0175.
No, that is why it is called a vent pipe not a soil line