IV420E Rev.00 SIEL S.p.A.
Installation and user manual
Date of issue: 2019-01-29
Pag. 12 di 72+ FR
(Load coefficient equals max load in high altitude place divided by nominal power of the UPS)
Altitude
(m)
1500
2000
2500
3000
3500
4000
4500
5000
Load
coefficient
100%
95%
90%
85%
80%
75%
70%
65%
◆
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.
3.5
External Protective Devices
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.
CAUTION!
Select a thermo magnetic circuit-breaker with an IEC 60947-2 trip
curve C (normal) for 125% of the current as listed below.
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 and necessary
warning signs to prevent any inadvertent operation.
3.6.1
Recommended cross-sectional areas for power cables
UPS
cabinet
Cable Dimension
AC Input
(mm
2
)
AC Output
(mm
2
)
DC Input
(mm
2
)
Grounding
(mm
2
)
50kVA
25
16
50
16
60kVA
35
25
50
25
100kVA
70
50
120
35
120kVA
95
70
150
50
160kVA
120
95
185
70
200kVA
150
100
120*2
95
Summary of Contents for 50-200kVA PF-1 UPS
Page 2: ......
Page 46: ...IV420E Rev 00 SIEL S p A Installation and user manual Date of issue 2019 01 29 Pag 44 di 72 FR...
Page 74: ......
