External Protective Devices; Power Cables - KStar YDC9300-RT Series Manual

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 .
CAUTION !
Select a thermo magnetic circuit-breaker with an IEC 60947-2 trip curve C
(normal) for 125% of the current as listed below.

Power Cables

3.6
◆ 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) .
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
Cable Dimension
WARNING！
UPON STARTING, PLEASE ENSURE THAT YOU ARE AWARE OF
UPS
AC Input
module
(mm
6KVA
10KVA
Cable Dimension
AC Output DC Input
2 2
) (mm )
6 6
10 10
- 7 -
Grounding
2 2
(mm ) (mm )
6 6
10 10