Figure 11.2 In stalling power m odules of 200kVA ~ 250kV A
N O T E: Install the p ow er m odules from bottom to top to avoid cabinet toppling caused by the high
center of g ravity.
11.3 Key Components and Service Life of UPS
When in use, some devices of UPS system will have shorter service life than UPS itself due to abrasion in work. For the safety
of UPS supply system, it is necessary to have regular inspection and replacement of these devices. This section introduces
the key components of UPS and the reference years of service life. For systems under different conditions (environment, load
rate, and etc.), assessment and advice by professionals on whether to replace the device are required with reference to the
information provided in this section.
11 Service and Maintenance
179
Vertiv™ Liebert® EXM2 UPS User Manual
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