MAINTENANCE
Installation Instructions for SIS Bus Bar Systems A2MS001EN revision R05
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5.3
AFTER A SHUTDOWN OF 3
MONTHS OR MORE
Personnel:
Installation stuff
Protective Equipment:
Safety Goggles
Protective Gloves
Safety Footwear
Fig. 110: Pressure compensation element
that can be removed for checking an
outdoor connection sleeve using an
endoscope
After a shutdown of the bus bar system of 3 months or
more, it is highly recommended to check the
connection sleeves for penetration of moisture, water
or dirt.
To perform this check for indoor connection sleeves
(SIS), release the sealing flange on one side and
reassemble it after checking. Please note the
information contained in chapter 4.7.1 on page 50.
There are two options to perform this check for
outdoor connection sleeves (SISES).
First option is to remove the pressure compensation
element (highlighted red in
) and to perform
the check by means of an endoscope. Reassemble
the pressure compensation element after the check.
Second option is to release the bellow and the ring-
seal unit on one side of the sleeve and to reassemble
it after checking. Please not the information contained
Optionally, the insulation resistance can be measured
including measuring the absorption index of the
connection sleeves. Caution: Electrical tests have to
be conducted by electrically qualified persons.
If any moisture, water or dirt is found in one or more
connection sleeves during these checks, please
document these by photos and contact Ritz Instrument
Transformers GmbH.