7. Pull smoothly keeping it level. Until the fuse holder
carriage is removed.
Figure 5.24. Removing the fuse holder carriage
8. Replace the blown fuse. Avoid resting the carriage on
any surface that could get dirt on the rubber seal or the
contact.
Make sure that the end with the striker of the new fuse
faces forward (carriage insulator end).
It is advisable to change all three fuses, even if they do
not appear to be damaged.
Figure 5.25. Medium voltage fuse change
9. Insert the fuse holder carriage.
Before re-inserting the fuse holder carriage, it is
important to ensure that both the carriage and the
inside of the fuse holder are clean.
Figure 5.26. Fuse-holder opening
IG-296-EN version 01; 12/03/2020
48
Recommended sequence of operations General instructions
cgmcosmos: Medium voltage cubicles with full insulation
in SF
6
gas up to 24 kV in accordance with IEC Standard
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