Huawei DPU40D-N06A3 User Manual page 60

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual
Figure 5-22 DC fuse
(1) Fuse
If any of the following has occurred, a DC fuse is faulty:

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Procedure
Step 1 Put on the protective gloves.
Step 2 Record the quick connector for a BAT or LOAD port where the fuse should be replaced.
Step 3 Use a flat-head screwdriver to prize up the buckle on the quick connect terminal and remove
the terminal.
Figure 5-23 Removing a quick connector
Step 4 Use an insulated flat-head screwdriver to remove the old fuse, as shown in the following
figure.
Issue 04 (2020-02-29)
The load has no power input though the PSU works properly.
There are obvious black signs of burning on the fuse.
The multimeter indicates that the resistance between both ends of the fuse is infinite or
the fuse circuit is open.
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