How to replace the wiring in a private house?

We determine the complexity of the work

So, first you need to analyze the old wiring and find out the following:

1. Is there a ground system on the site? This is very important, because without the presence of a ground loop you can suffer when the failure of household appliances or breakdown of insulation.
2. Is it possible to partially change the wiring in a private house or it is necessary to make a complete replacement of the electrician. Perhaps in some rooms repair was recently done and, accordingly, a new, more powerful cable was being stretched, which would fit modern requirements.
3. Whether you can do the wiring yourself or for this you will have to hire a specialist. It should be noted that it is not difficult to replace the electric wiring in the house with your own hands, but the measure is laborious and requires special care. If you do not doubt your abilities, of course, do everything yourself. Otherwise, initially learn the cost of the wizard, becausefor this you have to give a considerable amount of money.

Creating the wiring diagram

At this stage, it is necessary to think over the layout of the cable routing through the air and indoors. It is also necessary to properly design the earthing system, which will be located on the site of the village house. We recommend that you familiarize yourself with the following options:

With regard to grounding, it is better to give priority to the "triangle" system:

Having created the project, you can proceed to the calculation of materials and the selection of the most suitable elements for replacing the electrical wiring in the house with your own hands.

Calculate and select the materials

The first thing you need to calculate is the cross-section of the cable that will go through the air and inside the dwelling. This stage is very important, becauseit is because of the diameter of the veins that the wiring in the house is replaced( the old line, most likely with small-section aluminum wires).Calculating the cross-section of the cable in terms of power, length and current is not difficult, so here you can easily cope without the help of a master. For outdoor wiring, it is recommended to choose a copper cable with a cross section of at least 2.5 mm2( better than 4 mm).

Inside the private house from the distribution boxes the wiring will be divided into several groups of different sections:

• for lighting - 1,5 mm2;
• for sockets - 2,5 mm2;
• for powerful electrical appliances( for example, a boiler) - 4 mm2;

It should be noted that wire routing can be carried out both by open method and hidden. What to choose when replacing, you decide for yourself. However, if the brick building is much more advantageous for the hidden wiring, so the technology will be presented tangent to this method. If you decide to replace the wiring in a wooden house, it is better to use an open cable laying.

Regarding the protection automatics - RCDs and circuit-breakers, they are selected for each group of wires separately. The lighting is connected to a 16-amp machine, to sockets - 25A, to powerful household electrical appliances 32A.A separate RCD must be installed on the input( 63-ampere device is suitable), on the sockets and on each powerful electrical appliance. The rated current of the product is selected in each individual case according to calculations.

Sockets and switches are recommended to use high-quality so that they can withstand current loads( on the case the marking in amperes is indicated).For open wiring in the house, you must additionally purchase corrugated, cable channels or electrical skirting boards, depending on what you choose in your case. After selecting all the components, you can count their number and go shopping.

Remove the old

line At this stage, you are already starting directly to replace the electrical wiring in a private house with your own hands. To begin with, turn off the power at the input to the housing( usually there is a switchboard in the corridor).After that, you release the rooms from the furniture for trouble-free repairs.

The old electrical wiring needs to be completely replaced, starting from the distribution boxes. If for some reason it is impossible to pull the cable from the strobes, it is better to leave it, only carefully insulating it on both sides. Old shtroby can be used for new wiring, if you are satisfied with the former location of switches and sockets. If you want to change the track, patch the new grooves according to the created scheme. Once the entire old line is removed, you can proceed to a new one.

We proceed to the installation works of

We have considered the installation of electrical wiring in the house in detail in the relevant article, with which we recommend that you familiarize yourself. In order to understand the complexity of the work, we provide you with a short step-by-step instruction on how to replace the electrical wiring in the house:

1. Walls are prepared: the route of the wiring is marked with a pencil and the construction level in accordance with the chart outlined.
2. By Bulgarian or shtroborezom( shown in the photo), grooves are created in the wall, which will serve as a seat for the entire power line. By the way, you can make shtroborez your own hands, if there is a desire.
3. Socket and junction boxes are installed.
4. The cable is fixed in the stitches using special clamps or alabaster( plaster the walls do not rush, as this is best done after the replacement of the wiring in the house is completely completed).
5. Sockets and switches are installed.
6. The protective automatics are connected to the switchboard.

Checking the correctness of the wiring of the

When you completely complete the replacement of the wiring in a private house, it will be necessary to carry out a control check of the finished line. To do this, you can use a multimeter and an indicator screwdriver. The latter option will allow you to check the voltage in the sockets and other electrical points, but it is better to carry out the dial by a multimeter to make sure that there is no short circuit in the wiring.

If the device does not show errors, the walls can be puttyed and proceed to the decorative finish.

That's the whole technology of replacing the wiring in the house with your own hands! We hope that the information was clear and useful for you!
Related material:

• How to connect a light switch?
• Installation of electrical wiring in a wooden house
• Decoding of marking of wires and cables