69
Item Check method
Air inlet and outlet
Check the temperature of the radiator and the amount of dust
accumulated. Clean heat-dissipation modules with a vacuum
cleaner if necessary.
Wiring and cable
layout
Completely power off the devices inside the BESS before checking.
For any non-conformances found during inspection, correct them
immediately.
• Check whether the cable layout is normal and whether there is a
short circuit. For any non-conformances found during inspection,
correct them immediately.
• Check whether all cable entry are well sealed.
• Check whether there is water seepage inside the BESS.
• Check whether the power cables are loose, and fasten them
again by the torque specified previously.
• Check whether the power cables and control cables are
damaged, especially if the surface contacting the metal surface is
cut.
• Check whether the insulation tapes on the power cable terminals
fall off.
Ground
connection and
equipotential
connection
• Check whether the ground connection is correct and the
grounding resistance shall be no more than 4Ω.
• Check whether the equipotential connection inside the integrated
BESS is correct.
Fan
• Check the running status of fans.
• Check whether fans are blocked.
• Check if there is abnormal noise during operation of the fans.
Screw
Check whether internal screws fall off.
11.2.3 Maintenance (Every half a year to once a year)
Item Check method
Safety function
• Check whether the shutdown key on the touchscreen and the
emergency stop button work normally.
• Simulate shutdown.
• Check the warning marks and other device marks, and replace
them timely when they are fuzzy or damaged.
Software
maintenance
Check the settable parameters on the Web.
System Manual 11 Routine Maintenance
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