How to make ground with their hands
Previously, no one had done in the construction of housesground, and there was little need for it. Nowadays, with the advent of the plurality of electrical devices, such as a gas boiler, electric heater, washing machine, refrigerator, computer, etc. grounding issue has become very topical. To understand how to make ground with their hands, you need to understand to begin with, in principle, it works. It is with this we take a look at this article, but also with how to mount a ground loop.
- Grounding: why we need it
- How to make ground
- The choice of grounding electrodes
- Ground loop device
- Start building wiring grounding
- Checking the grounding reliability
- Summary Action Plan
Grounding: why we need it
Grounding is a special harness that connects the various electrical devices in a house with ground connection. The main purpose of this event is to increase security.
Why do we need grounding :
- it will eliminate electric shock to persons touching the body of the electric vehicle;
- ensure the normal operation of electrical devices, since in their manufacture is taken into account the existence of the earth;
- reduce the electromagnetic radiation of high frequency;
- reduce the amount of noise in the power supply.
How to make ground
We need a three-conductor wiring in large quantities, metal rods, welding machine. Works on the earth are divided into 3 categories:
- install proper grounding devices;
- works on installation of wiring with protective conductor;
- mounting hardware, given the ground.
By European standards all outlet must be groundedBecause modern appliances are equipped with specific plugs with ground "mustache".
To decide how to make ground with their hands, you need to consider what devices will be connected without fail into a grounded outlet. These include:
- Electrical devices that generatedynamic processes: washing machine, grinder, food processors. In other words, all devices with an electric motor, potentially pose a threat to the breakdown phase in their body.
- High-power devices. Today, even conventional electric kettles can be attributed to this category.
- All electronic devices. In the case of computers, which produce static electricity, grounding will protect not only the person but also will prevent the machine itself from damage.
Hence we conclude that the earth is simplyIt must be in the bathroom, in the kitchen, as well as in the field of computer technology connection. Where will connect not very powerful, sockets may be conventional. Although most owners prefer to make secure all sockets in the house, as required by European standards.
The choice of grounding electrodes
For grounding electrodes, in order to save,steel most commonly used, although it would be nice to use steel or copper in the copper shell. The most important criterion for selecting a ground electrode - the cross-sectional area. If you are using angular or rectangular profile, cross-sectional area should not be less than 150 square millimeters When using steel pipes minimum wall thickness - 3.5 mm diameter - 32 mm. The length of the earth electrodes must be not less than two meters. On the grounding conductors should not present any cover, which would worsen the electrical contact (paint, etc.).
Ground loop device
Earthing device is actuallya fairly simple structure. For it will need three grounding electrode. We are trying to drive them into the ground, giving the shape of an equilateral triangle (length of each side of not less than 1.2 m). Before the electrodes are immersed in the soil is necessary to carry out preparatory earthworks. Further work on grounding devices should be in this order:
- 3 digs the pit depth of 50 cm in the form of ground (equilateral triangle), join their trenches.
- Before Never nail sharpen electrodes, using grinders.
- We take a big hammer and hammering the grounding electrodes.
- If the ground is hard, it is possible that under the blows of a sledgehammer electrode tips will be seriously distorted. In this case it is necessary to cut off the deformed sections grinder and then continue to work
- The next step - a connection between the electrodes. We are using this conductor section in steel more than 50 mm2. You can also use a steel strip of a thickness of 4 mm and a width of 40mm.
- Steel components combine best welding. Perhaps, of course, bolting, but the perfect solution - is welding.
- We provide steel strip before the expected entry places in the house. We display it above the ground.
- Welded to the strip bolt M8 or M10 screw. Subsequently, we will cheat on him a wire leading to the board.
- Upon completion of these steps, you can sleep well.
Start building wiring grounding
The case is almost finished: we made grounding device. Now it is necessary to arrange the wiring to bring the ground to the electrical panel. This will require a three-wire cable. Most durable solid copper conductors are considered.
Three-core wire is used, usually whenthere is a need for special configuration of the lighting system, to install the wiring from the switch. Such wires are necessary for grounding. They replace conventional monolithic core. Now to the outlet deduce not only the phase and zero, but also land.
Conclusions In the glasses all the sockets of three wires,adhering to the color coding to know exactly which wire - earth. It is not so essential to mix with a zero phase, it is important not to confuse with the ground phase, since in this case the plug will not work. Gently curl up in all the "land" of existing distribution boxes to the "ground" and see that all went separate living ground.
Wiring divorced, move to the installation accessories. But first check to see if our ground firmly.
Checking the grounding reliability
Making the installation of grounding his own hands,you must test the system. It is best for this purpose would be to use the earth resistance meter. But since it is unlikely that DIY will be as sophisticated equipment, ground verification can be carried out in the following manner:
- take a portable incandescent lamp (100 W) and connect one blade to the ground, and the other - to the stage;
- lamp lights up brightly when their earthinghands performed solidly. If the lamp does not light up, or will simply burn dimly, that would mean that the earth has a high resistance due to the poor quality of the electrical contact at all nodes;
- to eliminate high resistance, we cleanwell all the wire, tube clamping mechanisms - in short, everything that plays the role of mediator between earth and track available in the outlet ground.
Summary Action Plan
Summing up detail above steps, you can make a quick plan of action for the organization of the ground with his own hands:
- Production of the grounding device in the form of a triangular metal frame with an edge of 1 meter. In each corner of the triangle is welded rods 1.5m long.
- Dive grounding device to the soil: the top frame, pins - to the bottom.
- Welding a metal strap device, with which ground is connected to the meter.
- Perform wiring in the house of the three core wires, eyeliner extra wires to the grounding outlet.
- Connection of wires "to the ground" on the counter.
- Installation of outlets with the addition of "antennae" ground for the evaluation of additional core.
- Another important point - the organization of the lightning protection of the building (this is a topic for another discussion).
As you can see, to make ground at home with their own handsquite simply, it is important to act only in accordance with these guidelines and abide by technology. But you yourself will provide your home a good wiring with a good ground, avoiding unnecessary costs. Well, if you still do not give rest doubts, invite a friend electrician to check whether you have done everything correctly.