System Manual
49
Check Item
Check Method
Interval
Check whether the temperature
inside the equipment or the
temperature of the equipment
shell is too high.
Check whether warning labels
are clear and replace them if
necessary.
Check whether the humidity and
dust in the equipment are heavy,
and clean the equipment.
Cable connection
Check whether power cables are
loose. If so, properly connect
them according to specified
torques.
Once every six months
after
the
first
commissioning;
once every two years
after that.
Check whether power cables and
control cables are damaged and
whether the cable exterior in
contact with the metallic surface
is scratched.
Check whether the insulation
binding tapes on the wiring
terminals of power cables are
flaked.
Clean or replace the dust-proof
network.
Fan / heat exchanger
Check the working status of the
fan / heat exchanger.
Once every six months
after
the
first
commissioning;
once every half to one
year after that.
Check whether the fan/ heat
exchanger produces abnormal
sounds during operation.
Device maintenance
For the maintenance of various
equipment inside, refer to the
related manuals.
–
MV switchgear
Check the SF
6
air pressure meter
to see whether the pointer is in
the green range. If the pointer is
close to red, stop running it in
time and supply it with gas.
Monthly
