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15
Installation
01.4IB.67000
Once the assembly of the metal-clad
switchgear is completed on site, all joints and
hardware, including bus connections, should
be checked for tightness and proper torque
values. See Table C, Bolt Torque Values for
Power/Vac® Metal-Clad Switchgear.
B. RECEIVING
Power/Vac Metal-Clad Switchgear is fabricated
in rigid, floor mounted, steel vertical sections.
The switchgear vertical sections are shipped in
an upright position and when received should
be kept upright.
When the switchgear is received, check for
signs of damage. If damage is found or
suspected, file claims as soon as possible with
the transportation company and notify the
nearest Powell representative.
Refer to the instruction bulletin furnished with
the circuit breaker for receiving, handling, and
storage instructions on the circuit breaker.
Some components such as top-mounted
resistors or potential transformers, may be
shipped separately. These components are
identified by a number coinciding with that of
the switchgear vertical section on which they
are to be mounted.
C. HANDLING
Powell recommends the switchgear be
handled or moved by means of an overhead
crane. If an overhead crane is not available the
switchgear may be moved on an even surface
by the use of rollers or heavy duty pipes placed
under the switchgear. The use of a forklift
is not recommended, since the forks may
damage the compartments or interior parts
of the switchgear vertical sections. If no other
method of handling is available, the forks must
be completely under the switchgear base to
avoid damage to the switchgear.
Ch 4 Installation
The information found in this instruction
bulletin is not intended to be used as
the sole source of information required
for installation. These instructions are
intended to be used only in conjunction
with the drawing package supplied with
the equipment. The drawing package shall
be readily available and completely read
and understood prior to beginning the
installation of the Power/Vac® switchgear
equipment. Failure to do so may result in
improper installation and prevent satisfactory
mechanical and electrical operation of the
equipment.
Contact the Powell Service Division for installation,
maintenance, and renewal parts assistance.
To contact the Powell Service Division, call
1.800.480.7273 or email info@powellservice.com.
It is the responsibility of the purchaser to set
or program components such as protective
relays, meters, timers, etc., in accordance with
the requirements of the particular installation,
before placing the switchgear with vacuum circuit
breakers into service. Programmable devices may
be shipped with temporary programming, used to
test the switchgear. Electromechanical relays may
be shipped in a blocked position to avoid damage
during shipment. Refer to separate instructions for
these components for information on setting or
programming.
A. GENERAL
This section contains information on receiving,
handling, positioning, power cable termination,
grounding, and checks to make the equipment
ready for operation.
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