2.9.4.1
Ratings at 60 Hz shall be:
Nominal voltage (kV)........................................[_____].
Rated maximum voltage (kV)..................................[_____].
Rated continuous current (A)................................[_____].
Maximum symmetrical interrupting capacity (kA)..............[_____].
Maximum asymmetrical interrupting capacity (kA).............[_____].
Three-second short-time current-carrying capacity (kA)......[_____].
BIL (kV)....................................................[_____].
2.9.4.2
Operators, Devices, and Controls
Operators and controls shall be provided for the switchgear as follows:
a. Switches shall be provided with a manual, handle-type operator or a
push-button mechanical spring tripping mechanism, utilizing a
stored-energy (spring-driven) mechanism to simultaneously open or close
all phases. The switchgear shall be configured so that the switch
actuator is padlockable, but may be accessed without opening the switch
compartment doors.
b.
Fused disconnects shall be hook-stick operated.
c. Switches shall be provided with an automatic switch operator
configured for local and remote opening and closing. An actuator
charging motor shall be provide which operates at [12 V dc], [24 V dc]
[120 V ac]. Switches shall be provided with remote telemetry units
(RTUs) for remote operation and integration with supervisory, control,
and data acquisition systems. Systems, components, and equipment shall
conform to the requirements and recommendations of IEEE C37.1.
d. Vacuum type interrupters shall be provided with an electronic
controller for trip initiation. Manual trip initiation shall be
provided by a push button or switch. Automatic trip shall be initiated
by detection of excessive current. The electronic controller shall
provide trip current selection capability according to present
time-current response curves, as indicated. Each interrupter shall be
provided with a 3 phase, gang-operated handle mechanism for trip and
reset.
2.9.4.3
Enclosures
Switchgear enclosures shall be of freestanding, self-supporting
construction provided with separate incoming and outgoing compartments
configured for bottom cable entry. Enclosures shall be of deadfront
construction, provided with a hinged door for access to each compartment,
and conform to the requirements of ANSI C57.12.28, ANSI C37.72, and IEEE
C37.20.3, Category A.
2.9.5
Pad-Mounted Sectionalizers
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SECTION 16375A
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