Nominal voltage ......................................
[_____]
Rated Maximum voltage ................................
[_____]
Rated continuous current .............................
[_____]
Three second short-time current-carrying capacity ....
[_____]
BIL ..................................................
[_____]
2.14
**************************************************************************
NOTE: Refer to UFGS-16528A, EXTERIOR LIGHTING
INCLUDING SECURITY AND CCTV APPLICATIONS for
illumination requirements.
**************************************************************************
[_____]
2.15
TRANSFORMERS
Transformers shall comply with IEEE C57.12.00 for general requirements and
ANSI C57.12.20 for specific requirements for overhead transformers.
Overhead distribution transformers shall be of the outdoor type,
[mineral-oil-insulated] [less-flammable liquid-insulated with [high
molecular-weight-hydrocarbon] [or] [dimethyl silicone] liquid] single-phase
or three-phase as indicated and have two separate windings per phase.
Transformers shall be provided with necessary auxiliary mounting devices
suitable for the indicated installation. Transformers shall have [four
2-1/2 percent] [two 2-1/2 percent] [two 5 percent] rated kVA high-voltage
taps [above] [and] [below] rated primary voltage. Transformer
installations shall include one primary fuse cutout and one surge arrester
for each ungrounded phase conductor. Self-protected transformers are not
acceptable. Transformer tanks shall have a standard [gray] [_____] finish.
2.16
SURGE ARRESTERS
Surge arresters shall comply with NEMA LA 1 and IEEE C62.1, ANSI C62.2, and
IEEE C62.11, and shall be provided for protection of aerial-to-underground
transitions, automatic circuit reclosers, capacitor equipment,
group-operated load-interrupter switches, transformers and other indicated
equipment. Arresters shall be [station] [intermediate] [distribution]
class, rated as shown. [Arresters for use at elevations in excess of 1.8
km 6000 feet above mean sea level shall be specifically rated for that
purpose.] Arresters shall be equipped with mounting brackets suitable for
the indicated installations. Arresters shall be of the [valve] [or]
[metal-oxide varistor] [or] [combination valve-metal-oxide varistor] type
suitable for outdoor installations.
2.17
VOLTAGE REGULATOR
**************************************************************************
NOTE: Bypass arresters are normally standard
equipment. Incoming line arresters may not be
needed. Coordinate with the manufacturer.
**************************************************************************
SECTION 16370A
Page 25
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