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IEEE C37.105-1987

Historical Revision

IEEE Standard for Qualifying Class 1E Protective Relays and Auxiliaries for Nuclear Power Generating Stations

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New IEEE Standard - Superseded. This IEEE Standards product is part of the C37 family on Switchgear, Substations and Protective Relays. The basic principles, requirements, and methods for qualifying Class 1E protective relays and auxiliaries, such as test and control switches, terminal blocks, and indicating lamps, for applications in nuclear power generating stations are described. The qualification procedure is generic in nature and can be used to demonstrate the design adequacy of such equipment under normal, abnormal, design-basis-event, and post-design-basis-event conditions. Protective relays and auxiliaries located inside primary containment areas in a nuclear power generating station are not covered.
This standard describes the basic principles, requirements, and methods for qualifying Class 1E protective relays and auxiliaries such as test and control switches, terminal blocks, and indicating lamps for applications in nuclear power generating stations. When properly employed it can be used to demonstrate the design adequacy of such equipment under normal, abnormal, design basis event and post design basis event conditions in accordance with ANSI/IEEE Std 323-1983 [5].1 When protective relays and auxiliaries are located in areas not subject to harsh environments, environmental qualification is not required. Protective relays and auxiliaries located inside primary containment in a nuclear power generating station present special conditions beyond the scope of this document. The qualification procedure presented is generic in nature. Other methods may be used at the discretion of the qualifier, provided the basic precepts of ANSI/IEEE Std 323-1983 [5] are satisfied.
The purpose of this standard is to 1) Define specific qualification methods for Class 1E protective relays and auxiliaries in accordance with the more general qualification requirements of ANSI/IEEE Std 323-1983. 2) Provide guidance in establishing a program for demonstrating the design adequacy of Class 1E protective relays and auxiliaries in nuclear power generating stations applications.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C37.105
Publication Date Dec. 31, 1987
Language en - English
Page Count 24
Revision Level
Supercedes
Committee Nuclear Power Engineering Committee
Publish Date Document Id Type View
Oct. 29, 2010 C37.105-2010 Revision
Dec. 31, 1987 C37.105-1987 Revision