suitable for the operating voltage for heater and light circuits.
d.
Devices identified under specific unit requirements hereinafter.
2.5.3
Power Fuse Disconnecting Units
Incoming line power fuse disconnecting units, consisting of power fuses and
fuse disconnecting switches, shall comply with [_____]. [Expulsion-type]
[Current-limiting] power disconnecting units and fuses shall have ratings
in accordance with ANSI C37.46.
2.5.3.1
Power Fuse Disconnecting Unit Ratings
**************************************************************************
NOTE: For projects where multiple ratings are
required for different applications, provide rating
requirements on the drawings in tabular form.
**************************************************************************
Power disconnecting units shall have ratings [as indicated] [as follows]:
Nominal voltage.............................................[_____]
Rated maximum voltage.......................................[_____]
Maximum symmetrical interrupting capacity...................[_____]
Rated continuous current....................................[_____]
BIL.........................................................[_____]
2.5.3.2
Construction
Units shall be suitable for outdoor use and shall be of the stick (hook)
operated, disconnecting, single-pole, single-throw, drop-out type. Fuses
shall have visible blown-fuse indicators. All ratings shall be clearly
visible. Units shall be suitable for [vertical] [or] [45 degree] [or]
[horizontal underhung] mounting [as indicated].
2.5.3.3
E-Rated, Current-Limiting Power Fuses
E-rated, current limiting, power fuses shall conform to ANSI C37.46.
2.5.3.4
C-Rated, Current-Limiting Power Fuses
C-rated, current-limiting, power fuses shall open in 1000 seconds at
currents between 170 and 240 percent of the C rating.
2.5.3.5
Additional Requirements
**************************************************************************
NOTE: Specify three spare fuses for each power fuse
current rating. Coordinate this requirement with
paragraph EXTRA MATERIALS.
**************************************************************************
At least one fuse tong or other fuse removal and replacement device of
sufficient length, and suitable design and voltage rating, shall be
provided for disconnection and replacement of fuses, and where units
SECTION 16311A
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