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Text artwork 990-9030 Rev. A. Equipment Handbook for the Low Voltage Disconnectors series Page 11 of 20
SECTION 6: ROUTINE MAINTENANCE
GENERAL
1
Routine maintenance should be carried out on a six monthly and annual basis as detailed below.
SIX MONTHLY CHECK
2
The following must be carried out every six months:
2.1 Check that the unit output voltage is within the normal operating limits of the external power
system (refer to the power system manufacturer's handbook).
Note
Voltages outside the normal operating range may be attributed to a recent interruption of the
dc supply.
2.2 Check that the LVD PCA LED is lit.
2.3 Make a visual inspection for mechanical damage, signs of overheating and damaged cables,
terminals and insulation.
2.4 Check that all electrical connections and mechanical fixings are secure.
3 Record any faults in the service log.
ANNUAL CHECK
4 As well as the six monthly checks listed in Para 2, it is recommended that a battery discharge test is
carried out on a battery connected to the unit output. For details, refer to the battery manufacturer's
documentation.