This standard also applies to actuators, although they are not included within the scope of IEC Publication 231 A. Its object is to lay down principles for testing such systems during normal power operation and shut down, so as to check complete availabi
IEC 60671:1980 history
2007IEC 60671:2007 Nuclear power plants - Instrumentation and control systems important to safety - Surveillance testing
1980IEC 60671:1980 Periodic tests and monitoring of the protection system of nuclear reactors