BS PD IEC/TR 63123:2017
Nuclear power plants. Instrumentation, control and electrical power systems. Guidance for the application of IEC 63147:2017/IEEE Std 497$UT$UM-2016 in the IAEA / IEC framework
BS PD IEC/TR 63123:2017 gives guidance for the application in the IAEA/IEC framework of the IEC63147:2017/IEEE 497 corresponding to the adoption without modification of IEEE 497:2016.
During their review of IEEE 497:2016, the experts of the review team noted that between the2010 edition of the IEEE 497 and its 2016 edition: some IEC standards were added as normative references; an additional group of Type F variables was defined to cover parameters providinginformation to manage fuel damage scenarios and associated technical requirements weregiven; several paragraphs were removed from 6.2 of the 2010 edition, which gave requirementson diversity of design and defence in depth; the term "1E" was replaced by "safety system".