It is intended for transformation of an all-mine 3 phase alternating voltage 660V or 1140V of frequency 50Hz in tension 133V; power supply of 127V two manual mountain electrodrills of three-phase alternating current power no more 1,6kW everyone and lamps of local lighting by power no more 0,2kW; controls of electric motors of drills remotely according to the intrinsically safe scheme of management; protection departing from the unit elektrotsepey and the unit from short-circuit currents, and also protection of the personnel servicing the unit and electrodrills against defeat by leakage currents. Execution on explosion protection:
explosion protection level - miner non-incendiary electric equipment of RV;
type of explosion protection - a blast-tight cover of STARS, an intrinsically safe electric chain of management of News agency;
extent of protection - 1P54.
execution - UHL, T;
category - 5.