Huawei NE05E Hardware Manual page 430

HUAWEI NE05E,NE08E
Hardware Guide
●
Protection Performance of the Outdoor Cabinet
When installed outdoors, an outdoor cabinet with rainproof heat-dissipation hole
and bottom lead-out cabling mode is recommended.
In regions with heavy dust, it is recommended that customers add air filters to
their customized outdoor cabinets to improve the reliability of the device.
Ensure that all cable apertures for external cables are sealed properly. Waterproof
plugs must be used when the device is installed in an outdoor cabinet.
If the cabinet is installed outdoors or in a corridor that is exposed to rain, the
cabinet must meet the requirements of IP55 rating protection. ("IP" indicates
International Protection Rating. The first number "5" refers to the rating for
preventing the solid particle from entering the cabinet. That is, ingress of dust is
not totally prevented, but dust shall not penetrate in a quantity to interfere with
satisfactory operation of apparatus or to impair safety. The second number "5"
refers to the rating for preventing water from entering the cabinet. That is, water
projected in jets against the enclosure from any direction shall have no harmful
effects.) For details, refer to
For example, test conditions/parameters of IP X5: flow: 12.5 L/minute±5%;
distance: 2.5 -3 m; spray duration: 1 minute/m
Eligible adjudging criterion for protection:
●
●
Engineering Installation of the Outdoor Cabinet
The engineering installation performance of the outdoor cabinet must meet the
requirements of installing the cabinet on a wall in the main outdoor application
scenarios of the outdoor cabinet, such as an elevated platform.
●
●
The space for routing power cables, optical fibers, and subscriber cables are
planned properly in the outdoor cabinet. Various types of cables are routed
separately and the cables do not cross over each other. The positions of the DDF
and the ODF are proper to ensure that the cable length is proper after the device
is installed.
Issue 05 (2023-03-31)
The cabinet must provide an internal ground bar for grounding all devices in
the cabinet in a unified way. The resistance of the PGND cable must be
smaller than 10 ohms.
No water enters the cabinet.
The water that enters the cabinet must be within the amount that may affect
the normal operation and safety performance of the cabinet. Water must not
accumulate on the insulating parts that may cause electrical leakage within
the creepage distance. Water must not enter the electrical parts or enter the
winding (resistance) that cannot be used in the damp state. No water
accumulates around the cable head or enters the cable.
The outdoor cabinet can be adaptively installed on different elevated
platforms.
When installed on a concrete floor, the cabinet can be leveled so as to be
installed reliably (the recommended adjustable scope is 10 mm at least).
Copyright © Huawei Technologies Co., Ltd.
4 Hardware Installation and Parts Replacement
Standards of the Outdoor
2
, at least 3 minutes.
Cabinet.
422