mounted at different elevations require different lengths, additional
devices shall be provided as necessary. One set of any special tools,
necessary for servicing the unit, shall be provided.
2.5.4
Line Switches
2.5.4.1
Ratings
**************************************************************************
NOTE: Preferred ratings are listed in ANSI C37.32,
Table 1, but not all ratings may be available for
all methods of switching. A short-circuit study is
required to specify ratings.
**************************************************************************
Ratings at 60 Hz shall be in accordance with ANSI C37.32 and as follows:
Nominal voltage.............................................[_____]
Rated maximum voltage.......................................[_____]
Maximum symmetrical interrupting capacity...................[_____]
Maximum asymmetrical interrupting capacity..................[_____]
3-Second short time current carrying capacity...............[_____]
Rated continuous current....................................[_____]
BIL.........................................................[_____]
2.5.4.2
Standard Devices and Accessories
One set of special tools, as necessary for servicing, shall be provided.
2.5.4.3
Stick (Hook) Operated Line Switches
**************************************************************************
NOTE: Stick (hook) operated switches manufactured
especially for bypassing regulators are not listed
with a 3-second current rating by manufacturers, but
with closed and momentary ratings. Ratings
obtainable should be checked with manufacturers.
Delete the hook stick requirement for voltage
regulator switches if hook sticks are provided for
stick operated switches and are of a suitable length.
**************************************************************************
Stick (hook) operated line switches shall comply with ANSI C37.32 and shall
be a stick-operated, single-pole, single-throw, vertical-break switch
suitable for [vertical] [or] [horizontal underhung] mounting [as indicated].
2.5.4.4
Group-Operated Line Switches
**************************************************************************
NOTE: Delete switch paragraphs as required.
Group-operated line switches are structure-mounted
for overhead, incoming-line applications. They may
be used for switching and protection of
SECTION 16311A
Page 29
Previous Page
