This document is applicable to nuclear power plant instrumentation and control (I&C) and electrical systems and equipment, whose functions are required to be independent due to their contribution to:• a redundant or diverse safety group;• different defence in depth levels;• different safety classes and also with non-classified (NC) systems.
It is also applicable to temporary installations which are part of those I&C and electrical systems important to safety (for example, auxiliary equipment for commissioning tests and experiments or mobile power supply systems). Clause 7 is intended particularly for electrical isolation, Clause 8 is intended particularly for the cabling and the arrangement of equipment of I&C and electrical systems important to safety.
This document applies to I&C and electrical systems of new nuclear power plants and to I&C and electrical upgrading or back-fitting of existing plants. For existing plants see 1.2 and 5.4.Cross References:IEC 60364-4-41IEC 60909IAEA SSR-2/1:2016HD 60364-4-41EN 61660 seriesIEC 62808IEC 61000EN 61513:2013IEC 61513:2011IEC 61500EN 60332 seriesIEC 60071IEC 63046IEC 61226EN 61226IAEA SSG-34IEC 62003IAEA SSG-39:2016IEC 60364-5-56IEC 60964EN 62808IEC 61439-1IEC TR 62096EN 60071 seriesIEC 60364-5-52IEC 61660IAEA SSG-30IEC 60332HD 60364-5-52EN 61439-1IAEA 50-C-QIAEA GS-G-3.5:2009IEC 61643IEC 60880IEC 60364IAEA GS-G-3.1:2006IEC 62138IEC 62305IAEA GS-R-3:2006IAEA Safety Glossary:2016IEC 62645All current amendments available at time of purchase are included with the purchase of this document.