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1) Check whether room is ventilation, and room’s temperature, EPS of the batteries with ambient temperatures below 30 ℃ in the fire industry, the temperature has a greater impact on battery life. Battery life is decreased by half with the rise of 10 degree celcuis, conditional units should be fitted with air-conditioning;

2) EPS must be far away from fire sources and inflammable and explosive materials, usually in general debris do not pile up in the EPS room, which is not conducive to fire safety are also easy to attract rodents to hide, then chew cables to cause the accident;

3) The spring and summer moist air is easy to make EPS condensation of internal control circuit board, so that EPS control failure occurs, so in spring and summer the indoor should be dry. 4) Indoor cannot have too much dust because the dust always take positive charge, if there is too much dust on the EPS board ,which may result in control panel fault;

5) EPS Point can not be placed too close by the window, to prevent flooding, rain, sunshine.

2, the maintenance of mains input

1) Regularly checking whether electricity voltage is normal, zero, and fire wire is misplaced or not , especially with a dual front-end EPS electricity or power generating units also check whether main road is consistent with the second road reserve electrical power supply if the wire is found dislocation ,you must immediately corrected, otherwise apt to cause EPS fault;

2) EPS front end fitted with lightning protection device users should regularly check the SPD and the grounding line is normal or not ;

3) The venue for rodents in general should be more input and output cables to install protective outer casing.

3, the line maintenance of the EPS output circuit

According to EPS and determine the status of the output circuit breaker whether it is short-circuit, using tongs, etc. to detect the loop flow table with his hand touch the way cable temperature sensing cable in order to determine whether the exception is appropriate or diameter is too small.