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Absolutely! Because, when the home is not grounded, some equipment leaks, which often causes the risk of electric shock, and after the water pipe is connected, the leakage current will be discharged along the water pipe, because the water pipe is buried in the ground after all, so that it will not cause great danger to people.
A few people downstairs said no, not wrong from a technical point of view, but they didn't understand the prerequisite: "there is no grounding at home"! Mine is relatively safe to connect the grounding wire to the water pipe compared to not doing grounding!
Once a friend's computer had a problem, the chassis leaked, and he felt numb, his house was on the 7th floor, where to find grounding? It is to connect the chassis to the heating pipe with a ** wire, and it has been used for 2 years, and there is no problem!
Don't forget to give!
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Absolutely not, don't watch the news? One of them is faulty, and the tap water in the whole building is electrified, so don't hurt people.
There are very strict requirements for grounding, and the ground that cannot be connected together with strong electricity and weak points is connected separately.
The leakage protector can protect people from being killed by electricity, and it will automatically jump when there is an asymmetric current of 30 mA.
Generally, the tripping time of the leakage protector is about less than 40 milliseconds, and the human heart will be irreversibly damaged after passing 30 milliampere currents for more than 300 milliseconds.
It is best to go to a big shopping mall to buy a brand of leakage protector.
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No, the grounding resistance value is required to be less than or equal to 4 ohms, and the grounding resistance value of the molten iron pipe is much greater than this value, which is not safe.
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In the absence of a grounding wire, the use of water pipes as a grounding security can play a certain role in protection. But you'd better use a leakage protector at the same time, so you can be sure that nothing goes wrong.
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Hello dear, I'm glad to answer for you, <>
Answer: Theoretically, it is absolutely not allowed, the reason is that, for example, when the electric heating equipment or small electric equipment is running, there will generally be a small leakage current, such as the shell is not grounded, there will be a little leakage, at this time, if the ground wire is connected to the water pipe, it will generally solve the problem and will not threaten others, but when the electrical appliance fails and leaks, there will be a large current flowing to the water pipe, and the shed will regret that its resistance to the ground is very small, and it will be a crisis to yourself or others. So it's best not to connect it to the water pipe, but then again, the current leakage protection switch is particularly advanced, and the breaking capacity is very good, and it can generally be broken for short-circuit current. As an electrician, I have also connected the ground wire to the theme of the building and it is still very good, but it is still recommended that you find a suitable ground wire, but it must be grounded, because many household appliances are now high-power chains.
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Do not connect the grounding wire to the hot metal pipe.
On the one hand, because there are many joints in the water pipe, the sealing materials at the joints are insulated, and the water pipe generally does not have a good grounding device, and once the leakage occurs, it can not play a protective role.
In addition, once the grounding wire is connected to the water pipe, once the water pipe leaks, it becomes a live body, and all people who touch the water pipe may be electrocuted, which has certain safety hazards. It is required that the grounding wire must be grounded.
Extended Information: The Role of the Grounding Wire.
1. Protect personal safety: because it is easy to produce a large amount of charge during electrostatic discharge, if the electrical equipment is not properly isolated, it will easily cause great harm to the electrical appliance itself and the human body, and the role of the grounding wire happens to be the wire between the high-voltage equipment and the earth, so as to avoid being damaged by the charge.
2. Lightning protection: In the past, once thunder and rain occurred, electric poles and other equipment were often damaged due to lightning strikes, so the role of the grounding wire can have a very good protection effect in lightning protection, effectively prolonging the service life of electrical equipment.
3. Ensure normal operation for some work that must be carried out with electricity, such as medical work, the role of the grounding wire is to avoid the emergency situation of power failure, which will not be affected and can still operate normally.
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Dear, hello, I am happy to answer for you, the grounding wire can be connected to the water pipe, not the grounding wire can be connected to the iron pipe. On the one hand, because there are many joints in the water pipe, the sealing materials at the joints are insulated, and the water pipe generally does not have a good grounding device, and once the leakage occurs, it can not play a protective role. In addition, once the grounding wire is connected to the water pipe, once the water pipe leaks, it becomes a charged body, and all people who touch the water pipe may be electrocuted, which has a certain potential safety hazard.
It is required that the ground wire must be grounded.
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When there is no grounding protection in the home, it is perfectly possible to connect the grounding wire to the molten iron pipe.
Because, when there is no grounding at home, some equipment leaks, which often causes the risk of electric shock, and before and after connecting the cover of the water pipe, the leakage current will be discharged along the water pipe, because the water pipe is buried in the ground after all, so that it will not cause great danger to people.
The grounding wire is a line that directly connects to the earth, and it can also be called a safe return route, and it will directly transfer the high pressure to the earth when it is dangerous, which is a lifeline.
Due to the poor insulation performance of household appliances or the humid use environment, the shell of the household appliances will have a certain amount of static electricity, and in serious cases, electric shock accidents will occur.
In order to avoid accidents, you can connect a wire on the metal shell of the electrical appliance, connect the other end of the wire object and the clear to the earth, and once the electrical leakage occurs, the grounding wire will bring the static electricity into the ground and release it.
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This is because the water pipe is basically a PPR pipe, and the insulated one is not electrified, even if it is an iron pipe, there is a raw material belt wound around the pipe joint, which is also insulated, so the water pipe regrets that it cannot be used as a grounding wire.
Generally, in the renovation of water and electricity, the original water pipes will be replaced, and home improvement companies and businesses recommend that decorators install PPR pipes when using hot water pipes, even if they flow through cold water. Their Bi Xuan Han said that because the technical parameters of the hot water pipe are higher than the cold water pipe, and the difference is not large, the hot water pipe is used for the transformation of the waterway.
Since polypropylene is a typical crystalline polymer, its melt viscosity is sensitive to temperature, so processing temperature control is very important in the extrusion process of PP-R pipes. The molding temperature is generally controlled at 210 260, and the extrusion temperature is too high, which will lead to the accumulation of materials at the mouth and mold, thereby causing the degradation of raw materials and reducing the performance of pipe products.
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It is feasible to connect the grounding wire to the water pipe, but there are a few things to keep in mind:
First of all, the water pipe must be a real "ground wire". In many old houses, the water pipes are not reliable because of poor contact with the ground, or in some areas, the water pipes are not reliable. In the case of uncertainty, it is best to use a special ground code stuffy empty line to deal with it.
Secondly, the water pipes must be metal. Not all water pipes are made of metal, some are plastic, in this case, it makes no sense to connect the grounding wire to the water pipe.
Finally, the ground wire must be connected to a reliable ground circuit. In some areas, the grounding of the public power supply system is unreliable or non-existent. If you want to connect the grounding wire to the water pipe, it is best to have a professional test and wiring it to ensure that it is safe and reliable.
It is possible to connect the grounding wire to the water pipe, but it is important to note that the water pipe must be a real "ground wire", made of metal, and connected to a reliable grounding circuit. If you're not sure if your plumbing is eligible, it's best to have a professional test and wiring it to make sure you and your appliance are safe.
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Hello dear <>
We're happy to answer your <>
Does the ground wire have any effect on the molten iron pipe, and the answer is as follows; Do not connect the grounding wire to the hot metal pipe. On the one hand, because there are many joints in the water pipe, the sealing materials at the joints of the simple stove shed are insulated, and the water pipe generally does not have a good grounding device, and once the leakage occurs, it can not play a protective role. In addition, once the grounding wire is connected to the water pipe, once the water pipe is leaked, it becomes a charged body, and all people who touch the water pipe may be electrocuted, which has certain potential safety hazards.
It is required that the grounding wire must be grounded.
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Household wires are generally to be grounded, no grounding wire is a very unsafe performance, in the water and electricity is the need to find a reliable master, can not just find a plumber, when the time comes to you to walk the line casually, it will be very inconvenient to use at home.
Household electrical wiring without grounding wire is extremely unscientific and extremely irresponsible, the ground wire has a discharge function, in high voltage or lightning to release excess power. At present, in the newer housing, the power lines are single-phase three-wire, and there is a ground wire. Old-fashioned houses are generally only single-phase two-wire system, no spinal fluid has a ground wire into the room, with the increase of household appliances, should be connected to a ground wire into the room.
It is not safe for the home to not have a grounding wire, and the grounding wire is a way in electrical protection. Its function is that when your electrical equipment leaks or is inductively electrified, it can quickly introduce the current into the ground through the grounding wire, so that the equipment shell is no longer electrified, so as to ensure the safety of the equipment behind the personnel. There are two main wires in the home guess circuit, the live wire and the neutral wire, and the electrical appliances with metal shells must be grounded to ensure the safety of use.
A ground wire, also known as a lightning cable, is a wire used to introduce an electric current to the earth.
1. If it is a newly built community and there is no ground wire in the whole building, we can ask the developer to install a ground wire or complain to the relevant departments. According to the relevant regulations, the newly built residential area must have a grounding device. Without the installation of the ground wire, there will be potential safety hazards, and it will not be able to pass the fire acceptance.
2. The old residential area built before did not require a grounding wire, so the whole building may have the problem of no grounding wire. You can respond to the power supply bureau, and Yingzhaowu will apply to the power supply bureau to install the ground wire. Or we can hire a professional electrician to install a ground wire along the exterior wall of the building, and the cost can be shared by the owner of the building.
When decorating the house, we also need to install leakage protection, once there is a leakage problem, the power will be cut off in time to protect our personal safety.
Not necessarily, theoretically it should be separated, mainly to prevent the ground potential counterattack But it depends on the sensitivity of your equipment to electromagnetic interference If it is a computer electrical equipment, it is best to separate, because if it is not separated, the grounding resistance is required to be less than 1 ohm, which will be more difficult for the ground network If it is a general electrical equipment, it is not necessary to divide it as long as the ground resistance is less than 4 ohms
Yes or no!
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