Routine Maintenance; Maintenance Plan; Notes - Alpha ESS Storion-SMILE5 Installation, Operation & Maintenance Manual

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Routine Maintenance
6.1 Maintenance Plan
Ø Check if wire connections are loose.
Ø Check if cables are aged/damaged.
Ø Check if cable insulating ribbon drops.
Ø Check if cable terminal screw loose, any overheat sign.
Ø Check if ground connection is well.
6.1.1 Operating Environment
(Every half year)
Carefully observe whether the battery system equipment is ineffective or damaged;
When the system is running, listen to any part of the system for abnormal noise;
Check whether the voltage, temperature and other parameters of the battery and other equipment
parameters are normal during system operation;
6.1.2 Equipment Cleaning
(Every six months to one year, depending on the site environment and dust content, etc.)
Ensure that the ground is clean and tidy, keep the maintenance access route unblocked, and ensure
that the warning and guiding signs are clear and intact.
Monitor the temperature of the battery module and clean the battery module if necessary.
6.1.3 Cable, Terminal and Equipment Inspection
(Every six months to one year)
Ø Check if the cable connections are loose.
Ø Check whether the cables are aged / damaged.
Ø Check whether the cable tie of the cable has fallen off.
Ø Check if the cable terminal screws are loose and the terminal position has any signs of
overheating.
Ø Check whether the management system of the system equipment, monitoring system and
other related equipment are invalid or damaged.
Ø Check that the grounding of the equipment is good and the grounding resistance is less than
10 ohms.

6.2 Notes

After the equipment are out of operation, the following notes should be paid attention to while
maintaining:
Ø Related safety standards and specifications should be followed in operation and
maintenance.
Ø Disconnect all the electrical connections so that the equipment would not be powered on.
Ø Wait at least 5 minutes after disconnection, so that the residual voltage of the capacitors
drops to a safe voltage. Use a multimeter to make sure that the equipment is completely
discharged.
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Routine Maintenance

Alpha ESS Co., Ltd.