Nuclear power plants - Instrumentation and control important to safety - Electrical equipment condition monitoring methods. Pt. 6: Insulation resistance (IEC/IEEE 62582-6:2019)

This part of IEC/IEEE 62582 covers procedures for condition monitoring of organic and polymeric materials of cables using insulation resistance measurement to determine accurate and reproducible results during simulated accident conditions. This includes requirements for the measurement systems and environmental conditions as well as the reporting of the measurement results. Measurement of insulation resistance under simulated fault conditions (for example LOCA) with the aim of determining the lowest value during the fault in order to assess cable behaviour includes specific requirements specified in this standard. Methods for measurement under stable (non-interference) conditions are described in other International Standards, for example IEC 62631-3-3. The various parts of the IEC/IEEE 62582 series are measurement standards, primarily for use in ageing management during initial qualification and after installation. IEC/IEEE 62582-1 contains requirements for the application of other parts of IEC/IEEE 62582 and some elements common to all methods. Information on the role of condition monitoring in the qualification of safety-related equipment is given in DIN IEC/IEEE 60780-323 (VDE 0491-80):2016-12. The DKE/UK 967.1 "Electrical Instrumentation and Control Systems for Nuclear Facilities" of the DKE German Commission for Electrical, Electronic & Information Technologies in DIN and VDE is responsible.