16
Maintenance performed once a year
Inspection item
Inspection method
Switch gear and battery
module box
Check the following items. In case of nonconformity,
take corrective actions immediately:
•
Check whether there are flammable objects at the
top of the battery cluster.
•
Check whether the battery cluster is secured at the
fixing point on the foundation plate and whether there
is rust.
•
Check the box for damage, paint peeling, oxidation,
etc.
•
Check whether there are foreign objects, dust, dirt
and condensate inside the battery cluster.
Wire and cable layout
The inspection must not be carried out until all internal
devices of the battery cluster are powered off!
In case of nonconformity found in inspection, take
corrective actions immediately:
•
Check the cable layout for short circuit and
compliance with the specifications. If case of any
abnormality, take corrective actions immediately.
•
Check whether all wire inlets and outlets of the
battery cluster are sealed properly.
•
Check the battery cluster for internal seepage of
water.
•
Check whether the power cables and copper
busbars are loose, and tighten them according to the
aforesaid torque.
•
Check the power cable and communication cable for
damage, especially cut marks on the surface
exposed to the metal surface.
Grounding
Check whether the grounding is correct. The grounding
resistance should not be greater than 4Ω.
Fan
•
Check the fan for faults (e. g. locked rotor and
stalling).
•
Check the fan for abnormal noise during operation.
Screw
Check whether screws inside the battery cluster fall off
or are rusted.
Operation & Maintenance Instruction
