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There is no oil or other fluids or gases used in the
construction of ELECTRO COMPOSITES (2008) ULC
bushings.
AT ALL TIMES VERIFY THAT THE BUSHING IS
PROPERLY GROUNDED AND THAT THE
CAPACITANCE TAP SPRING AND CONTACT
WASHER ARE IN PLACE WHEN THE TAP COVER
IS CLOSED, OTHERWISE THE GROUNDING
SHIELD WILL NOT BE GROUNDED AND BUSHING
FAILURE WILL OCCUR.
After installation of the bushing on the equipment,
before the bushing is energized, proper steps must be
taken to insure the bushing is grounded. Verification
of the ground contact can be done by measuring the
resistance between the bushing flange and the
equipment on which the bushing is installed using an
ohm-meter. A maximum value of 0.5 ohm should be
measured under dry condition. If the measured value
is greater than the limit indicated, check the bushing
installation and verify the resistance again, or provide
other means to ground the bushing to the equipment.
ELECTRO COMPOSITES (2008) ULC bushings are
not supplied with a potential or voltage tap. Never
exceed 1000V when testing the bushings for
capacitance and power factor measurements.
However, test taps are insulated to 2000V.
This document does not purport to provide safe practices for use of equipment or the
performance of work around equipment where ELECTRO COMPOSITES (2008) ULC
bushings are installed. Installation and maintenance of ELECTRO COMPOSITES
(2008) ULC bushings is to be carried out by trained, certified and approved personnel
only. Although ELECTRO COMPOSITES (2008) ULC bushings present no danger to
personnel when not energized, reasonable care is to be taken when handling and
transporting bushings. Some edges may be sharp and bushings are bulky and heavy.