Huawei OceanStor 2000 V3 Series Features Manual page 52

OceanStor V3 Series
HyperMetro Feature Guide for File
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Issue 05 (2018-01-30)
Item Requirement
DC The DC distribution switches and DC power cables are
properly installed.
l The DC power module of the 2 U controller enclosure: -48
l The DC power module of the disk enclosure: -48 V to -60
Circuit breaker To prevent other devices connected to the circuit breakers
from being incorrectly powered off due to a power supply
failure of the storage device, you are advised to ensure that the
electric current of the circuit breakers of the external power
supplies to which the storage device is connected complies
with the following specifications:
l AC power supplies: greater than 16 A
l DC power supplies: greater than 32 A
AC power ground Do not connect the neutral line of a power cable to the
protection ground bar of any communication devices in the
equipment room. It is recommended that you set leading-out
terminals for AC safety ground in the equipment room for the
connection to devices.
AC surge The AC power system of the equipment room must be
protection equipped with a lightning arrestor with the rated discharging
current no less than 20 kA. The arrestor must be properly
grounded.
DC power ground The storage device is a type of DC-I device on which the
"RTN" terminals and the ground terminal of the system
chassis are separated. The DC power module of the storage
device does not provide any ground terminals. Therefore, the
storage device is grounded through the ground terminal of the
system chassis.
Transmission The debugging of the transmission device is complete, and the
device capacity of the transmission device meets the engineering
requirements. The protection ground of the transmission
system must be connected to the ground bar in the equipment
room.
Cabinet The cabinet for installing the devices must be a standard 19-
inch cabinet. The depth of the cabinet must be at least 1000
mm (39.37 inches). The depth of a cabinet for installing high-
density disk enclosures must be at least 1100 mm (43.31
inches).
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V to -60 V, ±20%, 30 A
V, ±20%, 18.5 A
3 Installation
44