BS IEC 60951-1 pdf download – Nuclear power plants — Instrumentation important to safety — Radiation monitoring for accident and post-accident conditions — Part 1: General requirements

BS IEC 60951-1 pdf download – Nuclear power plants — Instrumentation important to safety — Radiation monitoring for accident and post-accident conditions — Part 1: General requirements
1 Scope
This part of lEC 60951 provides general guidance on the design principles and performancecriteria for equipment’to measure radiation and fluid (gaseous effluents’ or liquids)radioactivity levels at nuclear power plants during and after an accident. This standard islimited to equipment for continuous monitoring of radioactivity in accident and post-accidentconditions.
The object of this standard is to lay down mandatory general requirements and give examplesof acceptable methods for equipment for continuous monitoring of radioactivity within theplant during and after accident conditions in nuclear power plants using light water reactors.
lt specifies，for the equipment described above，the general characteristics，general testprocedures, radiation,electrical， safety and environmental characteristics and theidentification and certification of the equipment. lf this equipment is part of a centralizedsystem for continuous radiation monitoring in a nuclear facility，there may be additionalrequirements from other standards related to this system.
Sample extraction and laboratory analysis，which are essential to a complete programme ofeffluent monitoring, are not within the scope of this standard.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 60038:2002,IEC standard voltages
IEC 60068-2-1:2007,Environmental testing – Part 2-1 : Tests – Test A: ColdIEC 60068-2-2:2007，Environmental testing – Part 2-2:Tests – Test B: Dry heat
IEC 60068-2-6:2007，Environmental testing – Part 2-6:Tests – Test Fc: Vibration (sinusoidal)IEC 60068-2-14:2009,Environmental testing – Part 2-14: Tests. Test N: Change oftemperature
IEC 60068-2-30:2005，Environmental testing – Part 2-30:Tests – Test Db: Damp heat, cyclic(12h +12 h cycle)
IEC 60068-2-78:2001，Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,steady state
IEC 60529: Degrees of protections provided by enclosures – lPcode
IEC 60780，Nuclear power plants – Electrical equipment of the safety system – Qualification
IEG 60880，Nuclear power plants – Instrumentation and control systems important to safety -Software aspects for computer-based systems performing category A functions
lEC 60980，Recommended practices for seismic qualification of electrical equipment of thesafety system for nuclear generating stations
IEC 60987，Nuclear power plants – Instrumentation and control important to safety -Hardware design requirements for computer-based systems
IEC 61000-4-2:2008, Electromagnetic compatibility(EMC)- Part 4-2: Testing andmeasurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3;2006, Electromagnetic compatibility(EMC) – Part 4-3: Testing andmeasurement techniques – Radiated,radio-frequency, electromagnetic field immunity test
IEC 61000-4-4:2004, Electromagnetic compatibility(EMC) – Part 4-4:Testing andmeasurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2005,Electromagnetic compatibility(EMC) – Part 4-5: Testing andmeasurement techniques – Surge immunity rest
IEC 61000-4-6:2008, Electromagnetic compatibility(EMC) – Part4-6: Testing andmeasurement techniques – lmmunity to conducted disturbances,induced by radio-frequencyfields
IEC 61000-4-8:2001，Electromagnetic compatibility (EMC) – Part 4-8: Testing andmeasurement techniques – Power frequency magnetic field immunity test
IEC 61000-4-12;2006,Electromagnetic compatibility (EMC) – Part 4-12: Testing andmeasurement techniques – Ring wave immunity test
IEC 61000-6-4:2006，Electromagnetic compatibility (EMC) – Part 6-4: Generic standards -Emission sfandard for industrias environments
IEC 61069-1:1991，Industrial-process measurement and control – Evaluation of systemproperties for the purpose of system assessment – Part 1: General considerations andmethodology
IEC 61226,Nuclear power plants – Instrumentation and control systems important to safety -Classification of instrumentation and control functions
IEC 61504:2000，Nuclear power plants – Instrumentation and control systems important tosafety – Plant-wide radiation monitoring
IEC 61559-2:2002，Radiation in nuclear facilities – Centralized systems for continuousmonitoring of radiation and/or levels of radioactivity – Part 2 : Requirements for discharge,ervironmental,accident, or post-accident monitoring furctions
IEC 62138，Nuclear power plants – Instrumentation and control important for safety -Software aspects for computer-based systems performing category B or C functions
IEC 62262;2002，Degrees of protection provided by enclosures for electrical equipmentagainsf external mechanical impacts (lk code)
ISO 2889:2009, Sampling airborne radioactive materials from the stacks and ducts of nuclearfacisities
3Terms and definitions
For the purposes of this document, the following terms and definitions apply.