Protecting private house against lightning - lightning rod a good overview

system Principle To begin with let's deal withhow lightning works of a private house and you need to create it.Visually see all the constituent elements of the system, you can on this scheme:

As you already understood, metal rods on the roof are the lightning rods that trap dangerous discharge to ground through the collector and special grounding.

Some people believe that if next to the house phone tower installed, you can not make a lightning rod in a private home.This is wrong, becausebetter to spend a bit of time and give yourself full protection against lightning strike.So you know how to be a lightning rod, and his right to make their own hands, below we consider the features individually select each of the elements of the system.

components, security elements

Lightning

main task - to choose the right air terminal, which should ensure the full protection of a country house in the zone of its action.Today, as a lightning receiver can be a pin, net, rope, or the roof itself.A closer look at features of each of the options in a private home.Regarding

pin, there already finished products from manufacturers who have the appropriate form and convenient fastening.Typically, fabrication air terminal metal is copper, aluminum or steel.The most appropriate and effective is the first option.To the receiver copes well with its task, its cross section must be at least 35 mm2 (if copper) or 70 mm2 (steel rod).With regard to the length of the rod, in a domestic environment receivers recommended length of 0.5 to 2 meters.Pins is useful to make a lightning rod in the garden house, bath or other small building.

metal mesh may also be sold in already finished form.Typically, the mesh is a lightning arrester of the cellular reinforcement frame 6 mm thick.The cell size can be from 3 to 12 meters.Most often, this option lightning used in apartment buildings and large buildings, such as shopping malls.

cable is more practical at home and does the job better than the mesh.To make a lightning rod in a private home with the help of a cable, you need to stretch it along the roof (the ridge) on wooden bars, as shown in the photo below.The minimum cable diameter for the lightning protection of the building should be 5 mm.Typically, this option is used, if they want their own hands to make a lightning rod in the house with a slate roof.

And the last option - the roof as a receiver can be used if the roof of an apartment house Indoor floorings, metal or other metal roofing material.In this embodiment, a lightning rod for roof imposed two important requirements.Firstly, the thickness of the metal should be at least 0.4 mm.Secondly, under the roof must not be flammable materials.Make a lightning rod in a private house with a metal roof can be much faster and at the same time saving on the purchase of special lightning rods.

Please note that if you use a grid, its installation should be carried out at a height of not less than 15 cm above the roof!

The collector

as a collector for private home use 6-millimeter wire made of copper, steel or aluminum.Connect with lightning rods and grounding wire system should be bolted or welded. only, but very important requirement for the current lead - it must be isolated from the environment and place to the ground via the most direct path.As for insulation, in cottages and country houses using conventional popular cable channels, which are also used if you need to make the exposed wiring in the house with his own hands

Earthing

Well, the last element of a lightning rod - grounding circuit.To make the material too voluminous, we have allocated a separate article the question - how to make a grounding in a private home.We recommend you review the information that you know all the details of this phase.

In short we can say that the grounding circuit should be close to home, but not in the casual part of the plot, but rather closer to the fence.the charge drain on the ground is carried out with metal rods buried in the soil to a depth of 0.8 meters.All rods are better placed on the delta, which is just and is shown in the photo:

So, roof constituent elements of lightning we got acquainted, now look at how to make a lightning rod with his hands.

Instructions manufacturing

To make it more clear how to collect the lightning rod private home system into a single unit,We provide step by step instructions with photos examples:

1. expect material.The most important point is the choice of air terminal length.For effective protection need to calculate as follows: 1.5 area protection radius of the mast height.For example, if the height of the bar 10 meters the protection zone will have a diameter of 30 meters.The diagram below makes clear the essence of the calculation.Please note that for the efficient operation of a lightning rod height should not exceed 12 meters.If one fails to lightning rods to cover the whole area of ​​the house, it is better to make a mast in 2 or 3 different locations.
2. Install the receivers in the appropriate places, according to the recommendations above.
3. Independently stretch across the roof and walls of the collector bars to the ground.Attach the wire recommended special plastic fasteners.To make the build-length wire use copper universal connector.It is possible to facilitate the work and to hold the collector on the gutter, securing the wire clamps.
4. We connect the collector to the earthing circuit.It is recommended to use welding or bolting.To contact was good, and therefore effective lightning rod, before connecting smooth out all areas of rust and dirt to metallic colors.
5. Check made lightning protection multimeter to measure the resistance.The scoreboard should show a value of not more than 10 Ohm.

That's the technology for creating protection from lightning.As you can see, make a lightning rod in a private house with his own hands is not difficult, the main thing right to make design work.Recommended necessarily view the instructions video in which all phases of the lightning rod installation in more detail.

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