Maintenance; Preventive Maintenance; Exterior - Huawei DPU40D-N06A3 User Manual

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual

5.1 Preventive Maintenance

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5.1.1 Exterior

Table 5-1 Device exterior maintenance
No.
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2
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Issue 04 (2020-02-29)
Maintenance personnel should be trained and qualified for the work.
There is a risk of corrosion in heavily salted areas (within 500 m away from the
seashore). Periodical preventive inspection and maintenance are required to reduce the
risk. The recommended maintenance interval is 8 months in these areas and 12 months in
other areas.
Item
Check whether the
device coating
flakes off or is
scratched.
Check whether rust
or corrosion exists.
Check whether the
device enclosure is
distorted or
damaged.
During paint repair, polish any rusty or corroded area with sandpaper and then apply antirust aluminum
spray paint. If there is no rust or corrosion, directly apply the antirust aluminum spray paint.
Copyright © Huawei Technologies Co., Ltd.
5

Maintenance

Possible Fault
Cause
Scratches occur
during movement, or
the cabinet is
manually damaged.
Scratches occur
during movement, or
the cabinet is
manually damaged.
Scratches occur
during movement, or
the cabinet is
manually damaged.
5 Maintenance
Suggestion
Repaint and repair
the exterior.
Repaint and repair
the exterior.
Replace the device.
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