Methods of checking the wiring condition

Initial inspection after purchase

If you have just bought a house or apartment, the first thing you need to check the condition of the wiring, becauseeven the slightest faults can subsequently lead to electric shock or fire.In the new and old house audit technology will vary, so look both ways separately.Immediately draw your attention to the fact that before checking the wiring must always disconnect the electricity panel.Work under stress, especially for inexperienced electricians, is strictly prohibited!

New

Check the wiring in the building after the installation most often after the purchase, before the overhaul - finishing of walls and arrangement of furniture.The importance of this event lies in the fact that if you are not from the beginning, inspect the cable line in the future to do the wiring checked by any stretch ceiling of gypsum sheets will be much harder.

The first thing you have to calculate the total power of electrical appliances, which will benefit, on the basis of which to calculate the cross-section of the cable for power and to compare this value with the section already laid in the walls of the conductor.If the section is insufficient, be sure to replace the electrics, but experience has shown that in new no such problems.

next step - checking the status of hidden wiring.The insulation must not be damaged, and all wiring connections must be made via terminal block or other connectors (eg, caps PPE), but not through the twists.It is also important to identify the section of the cable and check the ratings of outlets.On rosette group should go copper conductors, cross-section of not less than 2.5 mm2, and the nominal outlet should be at least 16A.

If all of the above requirements are met, the last thing left to do - check the wiring in an apartment on the load.In other words, you need to validate the correctness of assembling the electrical panel.When you connect all the equipment and the inclusion of all the fixtures in the rooms machines should not operate.If knocks breaker, wiring means not capable of withstanding the connected electrical load, resulting in replacement of machines have to perform, electrical division into groups, etc.If the machines are not in the panel turn off after the load, then the home wiring is correct.It does not interfere further verify the reliability of machines connecting to the panel, as well as a reconciliation of nominal load with which they come.

old housing

more difficult to check the electrical wiring in an old house or an apartment, especially if you have just bought a house and have no idea about how to perform electrical wiring through the rooms.Thus, the revision of the power needed to perform the following procedure:

1. Find all boxes from room to room.Opening the lid, you'll understand how the cable is made hidden electrical wiring: aluminum or copper, as well as a cross-section of wires.Yet you should immediately check the insulation condition - if the wiring is old, even the slightest bend the cable lead to the fact that the insulating layer begins to crumble or crack.Such wiring is required to change irrevocably.It is equally important to immediately inspect all wiring - there should be no damage and twists, particularly aluminum with copper.If necessary, you need to immediately connect the wires instead of twists terminal blocks.For information on how to find a junction box in the wall of an apartment building, we were told in detail in the relevant article.
2. Check sockets and light switches.The receptacles must be inspected integrity of wires, insulation, as well as to determine the denomination to which they are designed.If an outlet is brought a three-core wiring, be sure to determine where the phase, where zero and where the ground.To do this you will need a Multimeter or indicator screwdriver, and the technology itself determine the phase and zero, we have provided in the corresponding article.Once you determine where the grounding conductor, check grounding outlet.This is what we also talked in detail.Another very important point - if the socket is installed in a metal podrozetnik better to replace it with a more modern, plastic.As for the light switch, they need to disassemble and make sure that the gap is live wire, but not zero.If before Mount Electrical summed to zero gap will have to alter the connection asthis option unsafe - even if the bulb is replaced in the chandelier you can strike shock.
3. Inspect the introductory panel.It should be equipped with modern machines, not plugs that were used in the past.Be sure to check that the wiring in the bathroom was installed RCD, which protects against electric shock in case of breakdown of insulation and current leakage.Also check the quality of all connections and the cross section of the opening of the cable.If the section is insufficient, replace the cable with a suitable one.
4. When all the most important sites to be analyzed, will check the old wiring to the load, as we described above.Experience shows that in the old private houses and apartments without changing electricians can not do, but for some time you can wait (for example, to repair), simply do not include just a lot of powerful electrical appliances.

should also tell you about a special device, with which you can check the correct wiring - Megger:

That's the technology checks the old and new home wiring.As you can see, to make the audit is not very difficult, but the time it will take enough!We draw your attention to the fact that in their house or apartment you need to check the condition of the wiring about once a year.All that is required of you - to tighten the screws on the terminals of the wires, as well as the visual look, whether there is burnt insulation.

What else is important to know?

sometimes not enough just to check electrician to replace all elements of inappropriate postings.Sometimes, for example, after flooding the apartment, it is necessary to perform the network test for short circuit.To do this it is best to use a special Tester - Multimeter.For information on how to find a short circuit, we are told in detail in the relevant article.

I would also like to underline that during the audit of the wiring is necessary to pay attention to the convenience of the location of outlets and switches, because rearrange renovated them is not quite logical.It seems to be a simple point, but many miss it.

That's all that I wanted to tell you how to check the wiring in an apartment and a house with his own hands.We hope that the technique has been provided for you to understand and useful.Do not forget to grade papers and share information with your friends!