Installation Manual
7. Appendix
68
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6.7.3.
Requirements for Power Supply
7.3.6.1.
AC Power Supply Requirement
The low-voltage power supply system should adopt the three-phase five-
wire or single-phase three-wire system. The voltage of the low-voltage
power supply system is 110V/220V and the frequency is 50Hz/60Hz.
It is required to adopt the un-interruptible power, such as UPS
(Uninterrupted Power Supply), as the AC backup power supply. The AC
backup power and AC power should keep the same phase and the switching
time with the AC should be smaller than 10 ms. Otherwise, the router may
restart or reset.
The AC capacity of the equipment room should consider the work current
and faulty current of the router. Ensure that the independent router has the
independent AC power distribution protection device. The configuration
protection switch should be larger than the protection switch of the post
powered device.
The power input range of the router using the AC power is as shown in the following table.
Appendix Table 7.3.6.1-1 AC power supply requirement
Item
Index
Input voltage range
100–240V
Input frequency range
50–60Hz
AC wire should adopt the flame-retardant wire. The wire layout should be
done according to
Code for fire protection design of tall buildings GB50045-
95
. The low-voltage distribution is done according to
Specifications for the
design of low-voltage electric power distribution systems GB50045-95
.
7.3.6.2.
Suggestions on fundamental AC power supply
Suggestions on fundamental AC power supply include:
