0 scope, 0 standards, 0 design requirements – Southern States CSH User Manual
Page 2: 01 general, 02 service conditions, 01 temperature, 02 altitude, 03 seismic, 04 wind loading, 05 additional requirements
Title: Southern States – CSH & CSH-B
Horizontal Interrupter Style Circuit Switchers
Product Specification Guide
1.0 SCOPE
This specification covers the design, manufacture, and testing of three pole, gang
operated horizontal interrupter outdoor circuit switchers available with or without integral
motor operated vertical break disconnect switches.
2.0 STANDARDS
The outdoor circuit switchers shall be designed, manufactured, assembled, and tested
in accordance with the latest applicable ANSI, NEMA, and ASTM standards and
guidelines. If there are any conflicts between the ANSI, NEMA, or ASTM standards and
this specification the specification shall govern.
3.0 DESIGN REQUIREMENTS
3.01 General
All control components required to operate the circuit switcher shall be mounted
at a height readily accessible from ground level without the use of elevating
devices.
3.02 Service Conditions
The circuit switcher shall be suitable for outdoor installation in electric power
substations under the following conditions:
3.02.01 Temperature
The circuit switcher shall perform in an ambient temperature range of
-40
o
C through +40
o
C for 170 kV and below units and –30
o
C through
+40
o
C for 245 kV units.(Consult factory for ratings outside the limits
stated)
3.02.02 Altitude
The circuit switcher shall perform at elevations up to 3,300 feet.
3.02.03 Seismic
The circuit switcher shall be capable of withstanding seismic loading of
0.2 g ground acceleration in any direction when installed on the
manufacturer’s furnished support structure and anchor bolts and with
flexible connections to the terminal pads. The device shall perform its
specified functions during and after the seismic event.
3.02.04 Wind Loading
The circuit switcher shall be capable of withstanding wind loads up to
90 mph without loss of function.
3.02.05 Additional Requirements
If any site specific service conditions not covered in sections 3.02.01
through 3.02.04 exist (e.g. extreme cold temperature installation,
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Publication No.: PSG-803-032615