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◆ The UPS cooling is depending on fan, so it should be kept in good air ventilation area.
There are many ventilation holes on the front and rear, so they should not be blocked by any exotic
obstacles.
External Protective Devices
3.5
For safety reasons, it is necessary to install, external circuit breaker at the input A.C. supply
and the battery. This chapter provides guidelines for qualified installers that must have the
knowledge of local wiring practices for the equipment to be installed.
◆
External Battery
The UPS and its associated batteries are protected against the effect of over-current
through a DC compatible thermo-magnetic circuit-breaker (or a set of fuses) located
close to the battery.
◆
UPS Output
Any external distribution board used for load distribution shall be fitted with protective
devices that may avoid the risk of UPS overloaded.
◆
Over-current
Protection device shall be installed at the distribution panel of the incoming main
supply. It may identify the power cables current capacity as well as the overload capacity
of the system.
3.6 Power Cables
◆ The cable design shall comply with the voltages and currents provided in this section, Kindly
follow local wiring practices and take into consideration the environmental conditions
(temperature and physical support media).
WARNING!
UPON STARTING, PLEASE ENSURE THAT YOU ARE AWARE OF THE LOCATION
AND OPERATION OF THE EXTERNAL ISOLATORS WHICH ARE CONNECTED TO
THE UPS INPUT/BYPASS SUPPLY OF THE MAINS DISTRIBUTION PANEL.CHECK
TO SEE IF THESE SUPPLIES ARE ELECTRICALLY ISOLATED, AND POST ANY
NECESSARY WARNING SIGNS TO PREVENT ANY INADVERTENT OPERATION
3.6.1 Recommended cross-sectional areas for power cables
◆ For future expansion purpose, it is economical to install power cable according to the full rating
capacity initially. The diameter of cable is shown bellow:
UPS
cabinet
100
150
200
250
300
400
500
600
◆ When selecting, connecting, and routing power cables, follow local safety regulations and rules.
Cable Dimension
AC Input
BPS Input
AC Output
2
2
(mm
)
(mm
)
70
50
120
120
150
150
95*2
95*2
120*2
120*2
185*2
150*2
150*3
240*2
240*3
150*3
24
DC Input
Grounding
2
2
(mm
)
(mm
)
(mm
120
35
120
150
150
150*2
95*2
120*2
120*2
150*2
150*2
240*2
240*2
185*3
150*3
240*3
2
)
25
50
70
95
120
150
240
240
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