Devices electro- defence of accommodation
From left to right :
1. Two protecting from a short circuit, exceeding of current ofloading. The current of wearing-out gets out that is envisaged inthe technical requirements of supplier of electric energy.
2. Protecting from the lowered and enhanceable supply pressuretime-lagged including at times after normalization of tension(limits are programed) - very topically for old networks.Descriptions on a current are not higher, than on a point 1.
3. Protecting of man from a defeat an electric current - life andhealth of man do not come into question. Sneaks up at timeswearing-outs and to the current (current on a point 1). Time ofwearing-out, than below, so much the better from 0,1 second to 0,05 second.