Document reference MAMPS-HW/E HARDWARE MANUAL
Edition 18 - March 2022 VM600 machinery protection system (MPS)
14 - 13
Long-term storage of racks
MAINTENANCE AND TROUBLESHOOTING
14.7Long-term storage of racks
The specifications given below cover the preparation and storage of VM600 racks in defined
areas for a maximum of 3 years without intermediate checks.
14.7.1 Preparation
• Store the racks fully wired.
• Remove any batteries used in the rack and store them separately.
NOTE: The CPUM is the only card in a VM600 rack that uses a battery.
• Allow time for the racks to acclimatise to the storage conditions before covering them.
• Cover the racks with polyethylene sheeting having very good resistance to tearing or
perforating.
• Provide suitable ventilation to avoid condensation.
14.7.2 Storage
NOTE: Maintain a certain distance from pipes carrying water or other liquids that could
cause condensation.
Temperature : See Appendix A - Environmental specifications
Humidity : Between 50 and 70%
Dust : Dust-free environment
Air quality :
No smoke particles,
no salt or oil mists,
no halogens or solvents,
ambient pressure equal to atmospheric pressure,
no permanent draughts
Sunlight : Direct sunlight to be avoided
Mechanical protection :
Protect the racks in an appropriate manner if there is a
risk of mechanical damage occurring
Shock : To be avoided
Vibrations : Not exceeding levels found in inhabited buildings
Electromagnetic
interference
:
Avoid storage near high-voltage lines or strong magnetic
fields
Radiation : Not exceeding levels found in inhabited buildings
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