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  • IEC 60911:1987

    Current The latest, up-to-date edition.

    Measurements for monitoring adequate cooling within the core of pressurized light water reactors

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French, Russian

    Published date:  30-03-1987

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    PREFACE
    INTRODUCTION
    1 Clause and object
    2 Terminology
        2.1 Scope of terms
        2.2 Definitions
    3 Abnormal shutdown operating conditions
        3.1 Subcooled coolant
        3.2 Saturated coolant
        3.3 Superheated coolant
    4 Instrumentation requirements
        4.1 Measurements for subcooled condition
        4.2 Measurements for saturated condition
        4.3 Measurements for superheated condition
    5 Presentation of information
    6 Safety classification of the equipment
    7 Qualification
    APPENDIX A Thermodynamic analysis of the reactor coolant
    system
    A.1 General
    A.2 Assessment of thermodynamic conditions
    A.3 Display parameters
    A.4 Examples of displays

    Abstract - (Show below) - (Hide below)

    Defines requirements for additional instrumentation to measure coolant parameters, which are of interest when abnormal conditions arise with either one or two phases of coolant or with gas included in the reactor vessel. The information obtained on coolant conditions assists the operator to decide on actions needed to maintain adequate core cooling.

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    Development Note Stability Date: 2019. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS IEC 62118:2000 Nuclear reactor instrumentation. Pressurized water reactor (PWR) of VVER design. Monitoring adequate cooling within the core during cold shutdown
    BS IEC 62117:1999 Nuclear reactor instrumentation. Pressurized light water reactors (PWR). Monitoring adequate cooling within the core during cold shutdown.
    VDE 0491-4 : 2001 NUCLEAR POWER PLANTS - PRESSURIZED LIGHT WATER REACTORS - MONITORING ADEQUATE COOLING WITHIN THE CORE DURING COLD SHUTDOWN
    IEC 62118:2000 Nuclear reactor instrumentation - Pressurized water reactor (PWR) of VVER design - Monitoring adequate cooling within the core during shutdown
    IEC 61343:1996 Nuclear reactor instrumentation - Boiling light water reactors (BWR) - Measurements in the reactor vessel for monitoring adequate cooling within the core
    IEC 62117:1999 Nuclear reactor instrumentation - Pressurized light water reactors (PWR) - Monitoring adequate cooling within the core during cold shutdown
    IEC 61250:1994 Nuclear reactors - Instrumentation and control systems important for safety - Detection of leakage in coolant systems
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