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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.

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Q: How can you ground an ungrounded electrical outlet to a cold water pipe?
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What should be the distance from electrical outlet from a water tank?

2 Meters


Why is the accumulation of moisture dangerous in electrical appliances?

The water can cause circuits to short or ground out, with hazards of electrical shocks or fires.


How far is the required distance between electrical outlet and sink in an office building?

Before the code requiring all outlets to have GFCI protection that at within 6' of a water source you were required to install the outlet at least 6' from the sink. Now, there is no minimum distance but all outlets must be GFCI protected that are installed within 6' of a water source.


Why and when would you use a GFCI breaker within a older home with a groun?

You need a GFCI outlet at any location that is within 6' of a water source. You also need a GFCI outlet in a room with a concrete floor, any garage, and any location outside the home or under the home in the crawl space. A GFCI outlet protects you from electrical shock near water or moisture. You can protect more than one outlet with 1 GFCI outlet. Connect the incoming power to the LINE side of the GFCI outlet and all the other outlets getting power from that outlet to the LOAD side of the GFCI outlet. That way they will all be protected by 1 GFCI. A GFCI breaker is used to protect an entire circuit and not just individual receptacles. It is often cheaper to use GFCI receptacles than a breaker, especially if "piggy-backed" such as described above. It is also more convenient to reset a GFCI receptacle than to reset a breaker. But your question is "why." From this I suspect you may be misunderstanding the difference between a breaker and GFCI protection. To keep things simple let me say that a GFCI does not work on the same principles as a standard breaker. It provides a much safer protection than a standard breaker. Even with a ground you need GFCI protection as listed above.


How do you ground a 200 amp service with no water main?

You need two forms of grounding according to the code. Grounding to the water main is typically the best ground in a building. If you don't have a water meter you can add an extra ground rod.

Related questions

What should be the distance from electrical outlet from a water tank?

2 Meters


Is it safe to have an electrical outlet behind a shower wall next to the faucet valves where the water tank is also stored?

Sure, as long as it is not exposed to direct contact with water (the phrasing of your question is confusing). You should have a GFCI (Ground Fault Circuit Interupt) outlet in this wet location. Its purpose is to protect the user of an electrical appliance from electrocution. It is highly sensitive to moisture intrusion into the circuit, which causes it to trip.


Water leaves a lake through?

The substantial reason of water loss is the evaporation.


How electrical ground on ship works?

water is the ground for ships ,and the salt water is the best conductor and it acts as a zero potential(like for us ground as) for ships.


What is meant by earth fault protection?

Earth fault protection is called ground fault protection in the US. It is a device that monitors the separation of the hot and ground wires in your house's electrical system. If it detects that the hot and ground have been connected with too low of resistance--like when you drop an appliance into water--it will disconnect the hot line so you won't get shocked. It's not intended to be used this way, but if you want an outlet you can switch on and off and you don't want to pull wire, install a ground fault protected outlet. If you push the "test" button the outlet will be switched off, and pressing the "reset" button turns it back on.


Why is accumulation of moisture in electrical appliances dangerous?

The water can cause circuits to short or ground out, with hazards of electrical shocks or fires.


Why is the accumulation of moisture dangerous in electrical appliances?

The water can cause circuits to short or ground out, with hazards of electrical shocks or fires.


What are 3 conductors you shouldn't have near an electrical circuit?

# Your body # Water # Earth (ground)


What problems occur when cutting Cold Water pipe with electrical ground?

The only problem that can happen is you would not have a ground for your electrical in the house if the pipe is cut between the clamp and the copper going into the ground outside. You shouldn't get shocked, if that is what you're worried about.


Why do you get a shock from the water from the hot tap in your bathroom?

Some one did not ground an electrical appliance properly


How to calculate submersible pump water discharge in lpm?

The calculation will depend on how deep in the ground the submersible pump is installed and where the outlet for the water is e.g. is it above ground. Speak to the company that installed the pump to see if they can provide you with that data.


How do you Replace a house water pump?

first disconnect all electrical supply to pump and then detach the pipe or pipefittings joined with pump's outlet and inlet.