Huawei OceanStor N8500 T Series Installation Manual page 39

OceanStor N8500 Clustered NAS Storage System
Installation Guide (for T Series V100R005)
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Issue 02 (2015-09-22)
Item Requirement
Ventilation To ensure smooth ventilation, the cabinet should be at least 100 cm
and heat away from the walls and have a space of at least 120 cm between
dissipation the cabinets. To keep a convective air transfer between the cabinet
and the equipment room, no enclosed space is allowed in the cabinet.
1U space should be left above and below each device.
Dust-proof For the equipment room near dust sources (such as coal mines,
measures country roads, or farmland), use double-layer aluminum alloy
windows for proper sealing and an anti-theft and fireproof door.
Separate the devices from the door with a partition board to avoid
dust.
Ground Less than 10 Ω. The distance between the top of the ground terminal
resistance and the ground should be at least 0.7 m. In the cold regions, the
ground terminal should be buried under the layer of frozen earth.
Periodically monitor ground resistance to ensure ground
effectiveness.
Ground The ground bar in the equipment room should be connected to the
lead-in network of ground cables. The ground lead-in should not be longer
than 30 m and should use the zinc-coated flat steel whose cross-
sectional area is equal to or more than 40 mm x 4 mm. The contact
point should be handled for insulation and anticorrosive purposes.
The above-ground steel should be provided with measures to avoid
mechanical damage and should be intact without soldering points
for the break.
Lightning The equipment room must be provided with lightning conductors
protection such as the lightning rod or lightning belt. The lightning conductors
share the ground bars with the protection ground cables of the
equipment room.
AC voltage The AC power voltage of the equipment room must range from 100
V to 127 V or 200 V to 240 V. The AC distribution switches and
AC power cables are properly installed.
Work 10°C to 35°C
environmen
t
temperature
Operating 5% RH to 90% RH
humidity
Particle
a
l ISO
contaminant
l You are advised to ask a professional organization to monitor
s
the particle contaminants in the equipment room.
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4 Checking the Installation Environment
14664-1 Class8
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