ac or battery powered. If operator mechanism charging power is from a
battery, capacity shall be provided for a minimum of [_____] [four]
sequential opening and closing operation without battery charging. The
switch control unit shall be configured for supervisory, control, and data
acquisition (SCADA) function, including local and remote operation.
Voltage and current sensors shall be provided, one set for each phase, for
monitoring of both normal and fault conditions. Switches shall be provided
with visual indication of open switch contact for clearance and isolation
purposes. Switch mechanisms shall be provided with provisions for
grounding of nonenergized metal parts. The switch control unit shall be
provided with a switch operations.
][2.20
METERING EQUIPMENT
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NOTE: "Metering Equipment" paragraph and its
subparagraphs are for primary metering and should
only be used when primary metering is required by
the local utility company and specific metering
requirements have been properly coordinated with the
cognizant EFD/EFA. Secondary metering shall
normally be covered in Sections 16272 THREE-PHASE
PAD-MOUNTED TRANSFORMERS, 16273 SINGLE-PHASE
PAD-MOUNTED TRANSFORMERS, or 16402 INTERIOR
DISTRIBUTION SYSTEM as applicable.
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Pole mounted metering equipment shall include current transformers,
potential transformers, watthour meter, [meter test switch block,] metering
enclosure, wire, conduit and fittings.
]2.20.1
Potential Transformers
Potential transformers shall be rated for outdoor service fitted for
crossarm mounting and secondary connection box for conduit connection.
Voltage rating shall be [2.4] [4.16] [7.2] [12.0] [12.47] [_____] kV to 120
volts ac, 60 Hz. Transformers shall conform to the requirements of IEEE
C57.13 BIL [45] [60] [75] [95] kV and accuracy Class 0.3 (min.) of [75 VA]
[burden Y].
2.20.2
Current Transformers
Current transformers shall be rated for outdoor service with crossarm
mounting and secondary connection box for conduit connection. Voltage
rating shall be [2.4] [4.16] [7.2] [12.47] [12.0] [_____] kV. Current
rating shall be [_____] to 5 amperes. Transformers shall conform to
requirements of IEEE C57.13, BIL [45] [60] [75] [95] kV and accuracy Class
0.3 at [B2.0] [50 VA].
2.20.3
Watthour Meter
Provide meter with provisions for future pulse initiation.
a.
Meters: NEMA C12.10 and NEMA C12.1; when providing meter with
electronic time-of-use register.
(1)
Form:
[5A] [5S] [6A] [6S].
(2)
Element:
[2] [2 1/2] [3].
SECTION 16301N
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