How to make a safe grounding in the apartment?

Correct solutions

Method # 1 - Connecting the RCD

If there is no earth connection in the apartment( not provided by the developer), and you allequally want to protect yourself from electric shock, it is best to connect a protective shutdown device for a while( pictured below).Of course, this device does not solve the whole problem, but still with leakage currents it instantly disconnects the power of the serviced device - a washing machine, a water heater or a group of outlets.

In addition, we recommend you to replace the electrical wiring in the apartment with a new one with a three-wire cable. In the future, when it comes time to make a ground connection at your entrance, you will already be prepared, and all that remains is to conduct and connect the PE wire to the corresponding floor plate bus.

Method number 2 - Installing your own circuit

Frequent cases in recent years, when residents of panel houses decide to make their own ground in the Khrushchev, for which they organize an individual grounding loop. This idea is that from the apartment to the basement is stretched a solid PE wire on the risers. Near the house is hammered at least three metal corners or electrodes, connected together by a plate of metal. To the finished protective triangle( provided in the diagram below) is connected the wire from the floor, the other end of which is fixed to the body of the flap. All that remains is to connect the grounding of the apartment with the shield and, as you know, the leakage protection is ready!

We draw your attention to the fact that it is possible to make such grounding by our own hands only after coordination of this event with the management company. Spontaneous adoption of this decision can entail many problems, becauseYou, no matter how, interfere in the approved project, and if there is an accident, it is possible that you will be the last.

Also I would like to add that if you still decide to make your own ground loop in the apartment, then the PE wire should be copper, section not less than 4 mm.kv. Suitable way of protection is not only for residents of the ground floor, but for all others - the 4th or even the 5th.

Video surveillance system overview:

wiring grounding technology Dangerous protection option

Some electricians decide to make a grounding in an apartment simply by connecting the third wire to the water pipe system or the heating passing through the room. Do not use this type of earthing circuit, for example.in this case the picture is as follows:

• Current breakdown occurs on the body of the appliance( boiler or washing machine in the bathroom);
• Dangerous current passes to the batteries and hot / cold water risers not only of your apartment, but of all neighbors as well.the system is one.
• Anyone who at this moment decides to drink tap water or just touch metal pipes can become a victim.

By the way, this rule is stipulated by the rules of the PUE and is also strictly prohibited, according to PUE 1.7.110.

1. Connection in a ground outlet with grounding conductor( so-called zeroing).If suddenly there is an open circuit in the network, dangerous voltage will pass to the housing of all electrical appliances connected to the ground of the apartment - a computer, a water heater, a refrigerator, etc.
2. Serial grounding of electrical appliances( through each other).If you decide to make such a ground loop, be aware - when an accident occurs, electromagnetic incompatibility may occur. As a result, electrical installations will interfere and there is a high probability that the ground loop will not prevent electric shock.
3. Connect several PE conductors to one PE bus terminal. Each conductor can be connected to one conductor. Neglect this rule is strictly prohibited.

expert That's all you need to know about how to make a grounding in an apartment if it's not there. We still strongly recommend that you use the RCD as a temporary protection option, and also insist that the city authorities take care of the electricity wiring in your home.

Related materials:

• In the bathroom, it's an electric shock - what to do
• How to connect a voltage monitoring relay
• Proper grounding in a private house