The insidiousness of electricity is that it has no visible signs indicating danger. Therefore the person often too late understands that it appeared in an area of coverage of electric current.
Instruction
1. Only having been included in an electrical circuit through which there passes current, the person becomes subject to defeat. The reasons of inclusion in a chain can be various: imprudent touch to the bared wire, use of the case of the electric device with the damaged isolation, contact of the conductor which appeared energized.
2. The danger of electric shock at hit in a zone of the so-called "step tension" is much less known. So tension which arises at break and hit on the earth of a wire of the power line which is energized is called.
3. If the line is not disconnected, current continues to proceed on a wire. The fact that earth carries out electricity is the reason for that. Any of points on the Earth's surface in a zone of falling of a wire in this case bears a certain potential. This potential of subjects is more, than closer to you a wire common ground with the earth.
4. When legs of the person adjoin to two points on the Earth's surface having different potentials, the person appears under the influence of electric current. The step is wider, the potential difference is more considerable and the more so it is probable that there will be a defeat by current.
5. The size of step tension is in direct dependence on the specific resistance of a soil covering and also at most the current proceeding on this chain. Step tension has the biggest size when approaching to the fallen wire, the smallest tension is observed at distance more than twenty meters from a wire.
6. At hit in a zone of step tension at the person convulsive reductions of muscles standing are observed that can lead to falling. Step tension when falling ceases to affect the person as other way for passing of current is formed (from hands to legs). This just also creates danger of death.
7. Having got to an area of coverage of step tension, it is necessary to leave it very short short steps, and it is even better – jumps on one leg.
8. If you see the wire lying on the Earth's surface by no means do not approach it. The zone of defeat can be located in a radius up to eight meters around the place of contact of a wire with soil. Damp soil increases space where defeat is possible.
9. It is forbidden to approach the wire which is on the earth or the person lying in a defeat zone. It is impossible to tear off soles from soil, to make wide steps or to run. The movement is carried out only by "a goose step". It is forbidden to touch the person affected by defeat with current, previously without having cut off power the power line.