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CHAPTER 10 – PREVENTIVE AND CORRECTIVE MAINTENANCE
(1MVA phase modules only)
9.
weight, it is recommended that two persons,
one on each side, lift a phase module off the
rails.
Moreover, make appropriate arrangements
when removing the upper phase modules.
(2- 4MVA INU phase modules)
10.
required number of bolt eyes to the phase mod-
ule:
-
3 bolt eyes for 2MVA INU phase modules
-
4 bolt eyes for 3-4MVA INU phase modules
M8x13
11.
(2- 4MVA INU phase modules)
ing brackets to the bolt eyes and lift the phase
module using the hoist.
(INU phase modules only)
Because of the
12.
cuit links on the replacement phase module.
13. Put the new phase module back into the cabi-
net.
14. When reconnecting the optical fibers, pay
attention to connect them to their correspond-
ing receptacles (see
below).
Fasten the
Connect the lift-
157
Remove the short-cir-
arrows
in the figure
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