Vertiv | Liebert EXS 80kVA UPS | User Manual
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Electrical Installation
Chapter 3: Electrical Installation
This chapter mainly introduces the electrical installation of the UPS, including the power cable and signal cable
connecting procedures and methods.
After completing the mechanical installation of the UPS, it is required to connect the power cable and signal
cable of the UPS. All the signal cables, whether shielded or not, shall be kept away from the power cables.
Warning
1. Do not power on the UPS before the arrival of authorized service engineer.
2. In accordance with the information contained in this chapter, UPS cables should be routed by an authorized engineer.
3.1. Wiring of Power Cable
3.1.1.
System Configuration
The cable size of the system power cable shall meet the following requirements:
UPS input cable
The cable size of the UPS input cable differs from the UPS power ratings and input AC voltages, provided that it
meets the requirement of maximum input current, including the maximum battery charge current, see
.
UPS bypass and output cable
The cable size of the UPS bypass and output cable differs from the UPS power rating and output AC voltages,
provided that it meets the requirement of nominal output or bypass current, as shown in
Battery cable
Each UPS connects to its battery through the three cables connecting to the positive pole, negative pole and
neutral line. The cable size of the battery cable differs from the UPS power ratings, provided that it meets the
battery discharge current requirement when the battery discharges to near EOD voltage, as shown in
.
3.1.2.
Maximum Steady State AC and DC Currents
The power cable must be selected accordance with the current and voltage values in
and the local
wiring regulations and take environmental conditions (temperature and physical media) into consideration, then
refer to Table 3B in IEC 60950-1.
Summary of Contents for EXS 0080kTK16FN01000
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