COVER serii NHS – User Manual
COMEX S.A.
10
2.6. Power cords
The main factors that affect the selection of wires are voltage, current, and room temperature and cable
installation conditions.
The system power cords must be selected in accordance with applicable regulations at the place of
installation and be consistent with the following description:
The input power supply cables must be matched to the maximum input current and the maximum
battery charging current indicated in the table below, taking into account the power rating of the power
supply and the AC input voltage.
The output and bypass cables must be matched to the rated output current given in the table, taking into
account the power rating of the power supply and the AC output voltage.
Battery cables must be matched to the battery discharge current at voltage at the end
discharging, given in the table taking into account the power rating of the PSU.
警告
危 险
Warning
BEFORE PERFORMING THE WIRING OF THE POWER SUPPLY, MAKE SURE THAT THE
POSITION AND FUNCTION OF EXTERNAL DISTRIBUTES WILL COMBINE THE INPUT /
OUTPUT POWER SUPPLY WITH A POWER DISTRIBUTION PANEL.
CHECK THAT THE FOREGOING POWER SOURCES ARE ELECTRICALLY DISCONNECTED
AND SIZE THE NECESSARY WARNINGS TO PREVENT THESE FAILURE TO INCLUDE THAT
THAT THE VOLTAGE DOES NOT APPEAR ON CABLES WITH A UPS POWER SUPPLY.
2.6.1. Maximum currents of the power supply
The table below shows the maximum currents for each UPS system power. The given currents are used
to select the appropriate protections in the power, battery and receiver lines as well as the appropriate
cable cross-sections. Currents given at 230 / 400Vac installation.
Table 2-1 Power supply table
System
NHS 120
Power
120 kVA
Dimensions
600x655x1600
Supply
Nominal
current A
202
Output
Nominal
current A
180
Batteries
Nominal
current A
284