NEMA SG 2 : 1993

Name: NEMA SG 2 : 1993
Brand: NEMA

Withdrawn

HIGH VOLTAGE FUSES

Withdrawn date

11-30-2000

Published date

01-12-2013

Publisher

National Electrical Manufacturers Association

Foreword
Scope
1 Referenced standards
40 Service conditions and definitions
41 Design tests
42 Distribution cutouts and fuse links
44 Distribution oil cutouts and fuse links
45 Distribution enclosed single-pole air switches
46 Power fuses and fuse disconnecting switches
46A Current-limiting resistors for use with power fuses
47 Distribution fuse disconnecting switches, fuse
     supports, and current-limiting fuses
48 Guide for application, operation, and maintenance
48A Guide for application of current-limiting fuses in
     enclosures
Appendices
A Recommended methods for determining the value of a
     sinusoidal current wave and a normal-frequency
     recovery voltage
B Recommended method of determining the equivalent
     steady-state RMS current for plotting time-current
     curves
C Fault current calculation
D Transient recovery voltage parameters

These standards apply to high-voltage fuses (above 1000 volts) distribution enclosed single-pole air switches, fuse disconnecting switches, and accessories for a.c. distribution systems.

DocumentType	Standard
PublisherName	National Electrical Manufacturers Association
Status	Withdrawn

IEEE 241 : 1990	ELECTRIC POWER SYSTEMS IN COMMERCIAL BUILDINGS
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IEEE 242-2001	IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book)
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IEEE C37.46-2010	FOR HIGH VOLTAGE EXPULSION AND CURRENT-LIMITING TYPE POWER CLASS FUSES AND FUSE DISCONNECTING SWITCHES
ANSI C37.5 : 1979	METHODS FOR DETERMINATION VALUES OF A SINUSOIDAL CURRENT WAVE, A NORMAL FREQUENCY RECOVERY VOLTAGE AND A GUIDE FOR CALCULATION OF FAULT CURRENT APPLICATION OF AC HIGH VOLTAGE CIRCUIT BREAKERS
IEEE C37.42-2009	SWITCHGEAR DISTRIBUTION CUTOUTS AND FUSE LINKS SPECIFICATIONS
ANSI C37.44 : 1981	AMERICAN NATIONAL STANDARD SPECIFICATIONS FOR DISTRIBUTION OIL CUTOUTS AND FUSE LINKS
IEEE C37.48-2005	IEEE Guide for the Application, Operation, and Maintenance of High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories
IEEE C37.45-2007	SPECIFICATIONS FOR DISTRIBUTION ENCLOSED SINGLE-POLE AIR SWITCHES
IEEE C37.40-2003	IEEE Standard Service Conditions and Definitions for High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories
IEEE C37.41-2008 REDLINE	IEEE Standard Design Tests for High-Voltage (>1000 V) Fuses, Fuse and Disconnecting Cutouts, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Fuse Links and Accessories Used with These Devices
IEEE C37.47-2011	DISTRIBUTION FUSE DISCONNECTING SWITCHES, FUSE SUPPORTS, AND CURRENT LIMITING FUSES, SPECIFICATIONS FOR (INCLUDES SUPPLEMENT ANSI C37.47A 1983),