• ISA 77.42.01 : 1999

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    FOSSIL FUEL POWER PLANT FEEDWATER CONTROL SYSTEM - DRUM TYPE

    Available format(s):  Hardcopy, PDF

    Superseded date:  03-19-2021

    Language(s):  English

    Published date:  01-01-2006

    Publisher:  International Society of Automation

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

    1 Scope
    2 Purpose
    3 Definitions
    4 Minimum design requirements for a feedwater control system
      4.1 Process measurement requirements
      4.2 Control and logic requirements
      4.3 Final control device requirements
      4.4 System reliability and availability
      4.5 Minimum alarm requirements
      4.6 Operator interface
    Annex A - Reference
    Annex B - Feedwater control

    Abstract - (Show below) - (Hide below)

    Assists in the development of design specifications covering the measurement and control of feedwater systems in boilers with steaming capacities of 200,000 lb/h (25 kg/s) or greater.

    General Product Information - (Show below) - (Hide below)

    Committee SP77
    Development Note Supersedes ISA S77.42-1987 Formerly it was ISA-S77.42.01 (05/2001)
    Document Type Standard
    Product Note Reconfirmed 1999
    Publisher International Society of Automation
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    ISA 5.4 : 1991 INSTRUMENT LOOP DIAGRAMS
    IEEE/ASTM SI_10-2010 American National Standard for Metric Practice
    API 556 : 2011 INSTRUMENTATION, CONTROL, AND PROTECTIVE SYSTEMS FOR GAS FIRED HEATERS
    ISA 51.1 : 1979 PROCESS INSTRUMENTATION TERMINOLOGY
    ISA 5.1 : 1984 INSTRUMENTATION SYMBOLS AND IDENTIFICATION
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