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GENERAL INSTRUCTIONS FOR
CMS-17
SWITCHING AND BREAKING SUBSTATION
IG-178-GB
version 01
11.08.2011
g)
Disconnect the earth connection of the electrical equipment from the earthing bar of the
Medium Voltage switchgear, both on the left side of the left cubicle and the right side of
the right cubicle.
h)
Unscrew the MV switchgear fixing points (a) on the rails that are arranged over the base
of the Switching and Breaking Substation.
i)
Extract the electrical equipment. To do this, the use of hoisting chains is required. Hook
the hoisting chains into the ring (a) located at the ends of each hoisting tool for
subsequent crane handling.
Figure 5.7: Disconnection of the earth connection of the MV switchgear
Figure 5.8: MV switchgear fixing screw
(a)
Figure 5.9: Lifting chain hooking
(a)
(a)
