Grounded and grounded: why is there a difference in safety

Professional electricians stray at the recognized installation of these services against electric shock damage. Go not about all, but precedents. Adzhe elementary understanding of terms and dozens of lives. You should not talk about being hit by a strum, but about commissioning a new private booth. It’s wrong for the defender to not allow the control of the organization to supply voltage to the entrance shield. And it is right to raise money, no one wants to take responsibility for the lives of people. Today, we’ll figure out what the terms and zero mean, why there is a difference between them, and if it’s possible to win the other way.

Valid to GOST 12.1.009–76:

• zahisne grounding- the price of navmisne electrical installations from the ground, or as an equivalent of metal non-current-carrying parts, which can be supported by a voltage;
• zeroing– the price of an electrical installation with a zero conductor of metal non-contact parts, which can be supported by a load.

GOST R 50571.2-94 “Budivel electrical installations. Part 3. Main characteristics” to introduce the classification of grounding systems of electrical fencing: IT, TT, TN-C, TN-C-S, TN-S.

Vіdpovіdno to PUE grounding vykonuєtsya (because of the obviousness of the circuit and the possibility of installation) in the binding order. Grounding is due to all metal cases, as hypothetically, they can use the pressure. As the possibility of grounding during the day, it is necessary to close the grounding with the obov'yazykovy installation of the extension of the electrical connection (PZV) and automatic at the input electric.

Obviously, language, as written PUE and GOST are foldable for people without electrical education, and it means that the varto is reportedly known, that such grounding is grounded by my splendid, enlightened simple inhabitant.

What is so grounded: how vlashtovano, the principle of robotic and pervading such a zahistu

The principle of robotic grounding is in order to prevent the passage of an electric stream through the body of a person, so that through the case, surround the body, lean against the pressure. This may be the case for some times the insulation of the cable lived. Let's look at an example. Lived with poor insulation sticking to the metal case. Lord, I'm getting ready to go to the kitchen, hanging around, which is not grounding. It’s worth bringing it to the point that the strum is straight to the ground, vikoristovuyuchi human body like a guide. Podsumok can be the biggest, right up to the lethal result.

Now we will consider for what it is necessary to ground, as it works. That very butt, but then again, I’ll zakhist for victories. Vymogi to the ground zastosovuyutsya nayzhorstkіshі. With vimirah opir contour can be practically but daily, which allows the struma to go into the ground without crossing along the tire. The law of physics is not to let the pressure flow through the human body, as I can opir. In some it's more, in others it's less, but it can't be overestimated. To go out, that the strum winds the path of the smallest support through the grounding device. If ELV is included in the scheme, it is necessary to designate a turn and turn on the supply of electricity to the accessory.

What is the zeroing of electrical appliances: the possibility of freezing

It is not possible to ground the electrical appliances after the zeroing, as it is impossible to install the grounding. Such a situation can be blamed on the vipadku, as if a rich apartment house was set up for radian hours. You can’t make your own outline, but you can’t go in on your own.

Zakhisne grounding - the whole system, which vikonuє vіdmіnnu vіd zanullennya robot. As soon as another call is made to introduce voltage into the ground, including the possibility of being struck by an electric jet, then it is first necessary to check the method of creating (when the insulation is broken and hitting the body) a short flicker. At this point, automatics and electrics are vimical.

Important information! At the rich apartment houses of the modern day, there are many private sectors in our days, the installation of the ground is fenced off. This is dictated by the security goals of the Meshkants. Automation can lead, which will lead to inaccurate consequences.

Zeroing required for correct installation. Don't think it's enough to remove the jumper from the zero contact in the middle to the ground. Tse is categorically fenced. Let's take a look at the situation, if the "pidgoriliy" is zero, the need for a short chime is given, but the machine still does not catch up. Zero vіdgoraє, turning off the faucet, but the additions are overwhelmed under the pressure. Lyudina, relying on the power of the electrics (even if the light is not, the zero of the fire) is pushed to the dot until the exit and spirals onto the body, which is under the pressure. The result of mindfulness, isn't it?

Zanulennya and grounding: why is it different

Rіznitsya tsikh sistem v metodi zdіysnennya zakhistu. When the power of the grounding is in place, the role of the voltage switch in the event of an emergency situation is taken on by the ELV, and at the time of installation, the ELV becomes zero, it can only be used automatically. Why so vіdbuvaetsya? The attachment of a zahisnogo switch-on reacts only to the strum coils, ignoring whether or not it is overwhelmed, including a short flicker. At the time of installation, it is zeroed and included in the ELV circuit without an automatic machine, with a short flicker, the ELV does not spratsovuє, but simply lights up, not turning on the voltage from the line.

What is grounded in the form of grounding: nodular

Grounding is resurfaced by grounding by way of protection and installation. Such systems are super-perfect one, and therefore the installation of the circuit with both options included is unacceptable. Zanulennya vlashtovuetsya less at the rich apartment booths, not possessing a wet outline. In other cases, such installation is blocked. We will talk about the methods of yoga power at once in a report.

What is zero and what is yak yogo correctly vlashtuvati

The wiring diagram looks like this. The neutral that came to the introductory machine splits in two, the skin lives on the other side of the bus. One of the tires becomes zero, and the other is grounded. From the neutral bus, they lived to go through the automation and gave to all zero contacts of the apartment's support. The grounding is connected to the body of the entrance shield, passing a yellow-green color through it to the output contacts of the sockets and, as a result, it will vibrate. The dotik of a grounding dart with zero after the zahisnoy automation was fenced.

Important information! Incorrect installation of the back grounding to lead to the exit of the cable lived, later. It is also possible to defeat with an electric strum up to a lethal result.

The best option for a grounding attachment?

The only correct answer is on the food chain - so. It's really so. , mounting according to all the rules, to steal a person richly better for the forward option. You can help yourself with additional attachments - automatic vimikachiv, PZV chi difavtomativ. Aje scho so zahisne grounded? As a matter of fact, the system of introducing an electric stream in case of an accident there, where people cannot go wrong.

What is the cost of a grounding outbuilding, one can say that it can be changed - a grounding loop along the perimeter of the building, a tricot near the yard or a natural grounding. All the rules and methods of yogo installation and obov'yazkovo are reviewed in one of the closest topics. But for general information, there is a sense of understanding about what is a natural grounding.