Electrical safety

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Classification of premises according to the risk of electric shock

Measures to ensure electrical safety depend on the purpose of the room in which the electrical installation is located and on the nature...

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How to do artificial respiration and external cardiac massage? Useful for electrician: electrical engineering and electronics

The purpose of artificial respiration, like normal natural respiration, is to provide gas exchange in the body, i.e. blood saturation of...

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Calculation of the grounding device «Useful for the electrician: electrical engineering and electronics

The calculation of earthing devices is reduced to determining the transient resistance of the propagation of the earth fault current from the earthing...

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What should you know about the effect of electric current on the human body?. Useful for electrician: electrical engineering and electronics

Electric current passing through the human body can cause two types of injuries - electric shock and electrical injury. The electric shock...