Miner electric motors

Operational conditions of explosion-proof electric motors  AIU, VRP, AVR, ZAVR types:
1) Height above sea level not exceeding 1000 m;
2) The recommended air temperature:
  - from + 40 to - 45 °C for performance of U2,5;
  - from + 40 to - 60 °C for performance of UHL 2,5;
  - from + 45 to -10 °C for performance of T2,5; TOM2.5.
3) The recommended relative humidity of the environment:
  - performance At - 100% at a temperature + 25 °C;
  - performance of UHL - 80% at a temperature + 25 °C;
  - performance T, VOLUME - 100% at a temperature + 35 °C.
4) Regarding influence of mechanical factors of the external environment - on the Ml state standard specification 17516-72 group.
5) A nominal operating mode of electric motors - long 81 in accordance with GOST 183-74.
6) Electric motors of these types are manufactured on nominal 220, 240, 380, 415, 500 and 660 V.' tension with a frequency of current of 50 Hz. and on 220, 230, 240, 380, 400, 415, 440, 500 and 660 V. with a frequency of 60 Hz.
7) Concentration of inert dust in the environment should not exceed 0.01g/m3.

RP - miner electric motors with the raised vzryvoustoychivost (level of explosion protection 2) – in similar models explosion protection is provided only in a normal operating mode.
RV – miner explosion-proof electric motors (level of explosion protection 1) – explosion-proof electric motors which explosion proofness is reached not only in normal operating conditions of the device, but also at the possible damages depending on operational conditions except for damages of the details providing explosion proofness.