Podrobnosti návrhu

Číslo:45A/1276/CDV - IEC/IEEE 60980-344 ED1
Zdroj:ISO\IEC\CEN\CENELEC
Komise:IEC/SC 45A
Název komise:Instrumentation and control of nuclear facilities
Návrh uveřejněn:1.07.2019
K připomínkám do:27.08.2019
Contact email:cermak(at)agentura-cas.cz
Anotace:

This International Standard describes methods for establishing seismic qualification procedures that will yield quantitative data to demonstrate that the equipment can meet its performance requirements. This standard is applicable to electrical, mechanical, instrumentation and control equipment/components that are used in nuclear facilities. This standard provides methods and documentation requirements for seismic qualification of equipment to verify the equipment’s ability to perform its specified performance requirements during and/or after specified seismic demands. This standard does not specify seismic demand or performance requirements. Other aspects, relating to quality assurance, selection of equipment, and design and modification of systems, are not part of this standard. As seismic qualification is only a part of equipment qualification, this standard shall be used in conjunction with IEC/IEEE 60780-323.

The seismic qualification shall demonstrate equipment’s ability to perform its safety function(s) during and/or after the time it is subjected to the forces resulting from at least one safe shutdown earthquake (SSE/S2). This ability shall be demonstrated by taking into account, prior to the SSE/S2, the ageing of equipment and the postulated occurrences of a given number of earthquakes of lower intensity operating basis earthquake (OBE/S1). Ageing phenomena to be considered, if specified in the design specification, are those which could increase the vulnerability of equipment to vibrations caused by an SSE/S2.

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