IEEE C37.73-1998 pdf download IEEE Standard Requirements for Pad-Mounted Fused Switchgear
1.Scope
This standard applies to assemblies of single-phase and three-phase, dead-front and live-front, pad-mountedload-interrupter switches with expulsion, current-limiting, and other types of fuses in enclosures up to 38 kvrated maximum voltage.
2.References
This standard shal be used in conjunction with the following publications. When the following standards aresuperseded by an approved revision, the revision shall apply.
AEIC CS5-1994,Specifications for Cross-Linked Polyethylene Insulated Shielded Power Cables Rated 5Through 46 kV.
AEIC CS6-1987, Specification for Ethylene Propylene Rubber Insulated Shielded Power Cables Rated 5Through 69 kV
ANSI C37.46-1981 (Reaff 1992), American National Standard Specifications for Power Fuses and Fuse Dis.connecting Switches.2
ANSI C37.47-1981 (Reaff 1992), American National Standard Specification for Distribution Fuse Discon.
necting Switches,Fuse Supports,and Current-Limiting Fuses.
ANSI C37.85-1989 (Reaff 1995), American National Standard for Switchgear–Alternating-Current HighVoltage Power Vacuum Interrupters–Safety Requirements for X-Radiation Limits.
IEEE Std 1291-1993, 1EEE Guide for Partial Discharge Measurement in Power Switchgear.
IEEE Std C37.09-1979 (Reaff 1989), 1EEE Standard Test Procedure for AC High-Voltage Circuit BreakersRated on a Symmetrical Current Basis (DoD).
IEEE Std C37.40-1993, 1EEE Standard Service Conditions and Definitions for High-Voltage Fuses, Distri-bution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories.
IEEE Std C37.41-1994, IEEE Standard Design Tests for High-Voltage Fuses, Distribution Enclose Single-Pole Air Switches. Fuse Disconnecting Switches, and Accessories.
EEE Std C37.48-1998, 1EEE Guide for Application, Operation, and Maintenance of High-Voltage Fuses,Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories.
IEEE Std C37.100-1992, IEEE Standard Definitions for Power Switchgear.
3. Definitions
The definitions of terms contained in this standard, or in other standards referred to in this document, are notintended to embrace all the legitimate meanings of the terms. They are applicable only to the subject treatedin this standard. For additional definitions. see IEEE Std C37.100-1992
3.1 fused-loadbreak way: A fused way incorporating an integral switching device operated by opening andclosing a fuse assembly.(See Figure 1.)
3.2 fused-switched way: A way connected to the bus through a three-phase group-operated switch or singlephase switch in series with high-voltage fuses.
3.3 fused way: A way connected to the bus through a high-voltage fuse.
3.4 pad-mounted fused switchgear (PMFSG): Load-interrupter switch and fuse assemblies in which allenergized parts are insulated and completely enclosed within an enclosure when the doors and covers aresecurely closed. The overall enclosure is of suitable environmental and tamper-resistant construction for out-door,above-ground installation.
3.5 switched way: A way connected to the bus through a three-phase group-operated switch or single-phaseswitch.
3.6 way: A three-phase or single-phase circuit section containing a switch, fuse, combination switch andfuse, or bus.
IEEE C37.73-1998 pdf download
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