Proper grounding in a private house

importance of the issue

If you are wondering whether necessarily need to make ground in his country house or cottage, you immediately say that you can not do without the protective circuit.Even by the standards of the SAE, SNIP and guests need to do a special outlet that will protect you from electrical shock.Organization of the system TN-S (its correct name) is 220 and 380 volts must be carried out even during the construction, asthen do it more expensive (it will be necessary to change the two-wire cable on a three or five-wire around the house).

If you bought a country house, which is not brought into the system, you need to very first thing to make it connect.In addition, installation is quick and requires no special calculation.In addition, it is desirable to produce lightning protection, but this is not part of the requirements, but about it we will certainly talk in the category electricity and security.

device circuit

Circuit protective earth consists of external and internal subsystems.Unite two more runs in the control panel, which must be installed indoors.Outdoor part composed of the soil dug electrodes connected metal plates.From this structure, the metal bus output, which is suitable to the main board.

As for the internal protection devices, it is composed of many individual wires coming from the corps of powerful electrical appliances.All contacts are connected to the bus, which is inside the shield (on the photo you can see the grounding device in a private home).

Plate and bus interconnected copper cable of a suitable cross-section.Wherein the cable is attached to the metal via bolting.As you can see, there are no super complex engineering solutions here are not used, so you can do everything on their own, with even without experience.Next, we bring to your attention to the description of how to step by step to arrange at his home ground.

Develop scheme

first step is to decide on the grounding circuit in a private home, will make the whole system on which you need.

Today, two popular schemes:

• closed (in a triangle).Its advantage is a more reliable functioning sinceif the metal jumper between pins damaged, the system will still work (the other side).
• Linear.In this case, all the pins are dug in one line, and the series is connected in series.Less house ground system such that the first bridge is damaged, it will fail the entire (garland principle).

We recommend that you make a grounding in a private house on the delta, becausein fact, the installation work is not changed (still have to dig three holes and drive the three pins), but the efficiency will be several times higher than the row scheme.

Apart from the above provided the grounding circuits in a private home, you can make your own version.For example, a score rectangle corners or oval.For example, we recommend that you print out the four most popular options:

Prepare tools and materials

With regard to tools for mounting the ground in a country house (for example, in the country), you will need:

• welding machine (his presence necessary,because the connection plates and fittings without welding will not create high quality contact, especially under the soil);
• Bulgarian (cut metal into suitable pieces);
• bayonet spade;
• punch;
• sledgehammer (the heavier, the better, because it will have to drive the pins 2 meters deep);
• set of wrenches (tightening screw).

If you possess at least a little skill electrician, it is recommended to make a welding machine with their own hands!Nothing complicated about it!

From the materials to be used:

• metal corner of stainless steel with dimensions of 50 * 50 mm, not less than 2 meters in length.The alternative - a water pipe made of steel with a diameter of 32 mm and a wall thickness of not less than 3.5 mm or fittings.It is also possible to use a rectangular profile, important to its cross-sectional area does not exceed 150 mm2;
• three metal strips 120 cm, a width of 4 cm and a thickness of not less than 4 mm;
• metal strip made of stainless steel 40 * 4 mm, having a length from the place of occurrence of the system to the steps of the house;
• bolt M8 or M10;
• copper wire, for example, MF-3, a thickness of not less than 6 mm2 (depending on which phase is adopted for the cross section of the conductor).

prepare all the necessary, you can switch to the production of ground in a private home.

Installation work

Step 1 - Select a place

First you need to decide where in the ground to make a loop.The importance of this step is very high, becausethe choice of the place to the ground depends on a country site security of the system.If electrical breakdown happen, resulting in the protection of works, the area where the pins should not be one.The presence of human or animal in situ soil removal electricity can cause death.That is why the position of the electrodes is selected, taking into account the fact that there will not be one.It is best to place the drainage along the fence of the house, at a distance of no more than 1 meter away from the buildings basement.Additionally, it is recommended to make a low fence or border guards to unsafe areas.

If you do not want to spoil the landscape design of the site, be sure to organize a grounding system apartment building under boulders or any volume of garden sculpture.In this case, and to be, no one can in the danger zone and the beauty of gardening area, nothing hurt!

Step 2 - Earthworks

For example, consider how to make the ground connection in a private house on the triangle pattern, which we discussed above.At this stage, you must shovel to dig a triangle with sides 1.2 meters (the optimal distance between the corners).The depth of the trench should be between 50 to 70 cm. The same need to dig a trench to the porch of the house.

Step 3 - Putting design

Now comes the main part of the process.According to the scheme must be to score the electrodes 2 meters into the ground (so that only the tops, which will need to grab welding).

Recommended grinder, regrind to drive in the end, so that it is easier penetrated the soil.

When all the pins will be hammered, it is necessary to weld a plate to the tops, to get a metal triangular frame (as shown in photo).

Another plate is placed in a long trench, which goes to the house and grab one end to the nearest apex of the triangle.

You can then move on to the connecting cable to the plate using the bolt and in the end, fill the hole with soil all back.

One important caveat - if the site is represented by a sand bag, current conductivity of soil will need to increase the brine.The liquid is necessary to pour the foundation for all of the electrodes.The disadvantage of such an event - the metal will begin to resist corrosion, making the ground in a private home is not as powerful as you need.

Step 4 - Verification

last thing you have to do - to carry out earth resistance measurement ready in a private home.In good measurement requires the use of the appliance, which is a pretty high cost.

At home, you can go the other way to solve the problem, a simple - to check efficiency of using lamps, power not less than 100 watts.All that is needed - to connect the light source with one terminal to the grounding circuit, and the other to the phase.If the bulb will burn brightly - installation of grounding in their own homes has been executed correctly, dimly - contact between the elements of the structure is weak and it is necessary to redo the joints.If the light does not appear, you are somewhere made a mistake and need to completely revise the whole system, perhaps starting with the circuit!

For more information see the whole process you can on the visual video examples:

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