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 60364-4-41
IEC 60909
IAEA SSR-2/1:2016
HD 60364-4-41
EN 61660 series
IEC 62808
IEC 61000
EN 61513:2013
IEC 61513:2011
IEC 61500
EN 60332 series
IEC 60071
IEC 63046
IEC 61226
EN 61226
IAEA SSG-34
IEC 62003
IAEA SSG-39:2016
IEC 60364-5-56
IEC 60964
EN 62808
IEC 61439-1
IEC TR 62096
EN 60071 series
IEC 60364-5-52
IEC 61660
IAEA SSG-30
IEC 60332
HD 60364-5-52
EN 61439-1
IAEA 50-C-Q
IAEA GS-G-3.5:2009
IEC 61643
IEC 60880
IEC 60364
IAEA GS-G-3.1:2006
IEC 62138
IEC 62305
IAEA GS-R-3:2006
IAEA Safety Glossary:2016
IEC 62645


All current amendments available at time of purchase are included with the purchase of this document.