• BS 7647:1993

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Specification for radio teleswitches for tariff and load control

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  31-08-2015

    Language(s):  English

    Published date:  15-10-1993

    Publisher:  British Standards Institution

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

    Committees responsible
    Foreword
    Specification
    Introduction
    1. Scope
    2. References
    3. Definitions
    4. Electrical values
    5. Mechanical properties
    6. Climatic conditions
    7. Electrical properties
    8. Signal reception, signal decoding and control of
         output switches
    9. Electromagnetic compatibility (EMC)
    10. Tests and test conditions
    Annexes
    A. (normative) Signal modulation and data format
    B. (normative) Specification for optically isolated
         diagnostic data
    Tables
    1. Dimensions and spacing of fixing holes and
         terminals
    2. Switch breaking current
    3. Temperature range
    4. Relative humidity
    5. A.C. voltage tests
    Figures
    1. Dimensions and spacing of terminals
    2. The two aerial positions for directional aerials
    3. Relationship between ambient air temperature and
         relative humidity
    4. Message format
    5. Switching sequence
    6. Electromagnet for testing the influence of
         externally produced magnetic fields
    A.1 Phasor diagram of carrier modulated by data
    A.2 Phase of modulated carrier as a function of time
    A.3 Amplitude response of the specified transmitter
         or receiver data-shaping filter
    A.4 Amplitude response of the combined transmitter and
         receiver data-shaping filter
    A.5 Spectrum of biphase coded low frequency (LF) radio-
         data signal
    A.6 Time-function of a single biphase symbol
    A.7 Eye pattern at the output of the specified receiver
         data-shaping filter
    A.8 Structure for LF radio-data blocks
    A.9 Arrangement of blocks in a multiblock, relative to
         clock-time
    A.10 Clock-time blocks (type 0)
    B.1 Diagnostic wand
    List of references

    Abstract - (Show below) - (Hide below)

    Specifies requirements and type tests for radio teleswitches used for the remote switching of up to four circuits (such as the control of two tariff circuits and a water and space heating circuit).

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

    Committee PEL/13
    Development Note Supersedes 92/30694 DC (10/2005) Reviewed and confirmed by BSI, January 2010. (12/2009)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Supersedes

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

    BS 7951:2000 Electricity meters. Alternating-current single-phase static watt-hour telemeters of accuracy class 1 or 2
    13/30281948 DC : 0 BS 7856 - CODE OF PRACTICE FOR SPECIAL DESIGN AND OTHER FEATURES OF ALTERNATING CURRENT WATTHOUR METERS FOR ACTIVE ENERGY (MID ACCURACY CLASSES A AND B) FOR USE IN THE UK
    BS 7856:2013 Code of practice for special design and other features of alternating current watthour meters for active energy (MID accuracy classes A and B) for use in the UK

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

    BS 7003:1988 Specification for spring-operated impact-test apparatus and its calibration
    BS 7400(1991) : 1991 AMD 7672 SPECIFICATION FOR ALTERNATING CURRENT STATIC WATT-HOUR METERS FOR ACTIVE ENERGY (CLASSES 1 AND 2)
    IEC 60801-4:1988 Electromagnetic compatibility for industrial-process measurement and control equipment - Part 4: Electrical fast transient/burst requirements
    BS 6667-3:1985 Electromagnetic compatibility for industrial-process measurement and control equipment Method of evaluating susceptibility to radiated electromagnetic energy
    BS 7527-3.3(1991) : 1991 AMD 7931 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - STATIONARY USE AT WEATHERPROTECTED LOCATIONS
    BS 142-1.4.1:1990 Electrical protection relays. Information and requirements for all protection relays. Specification for electrical disturbance tests 1 MHz burst disturbance tests
    BS 6458-2.1:1984 Fire hazard testing for electrotechnical products. Test methods Glow-wire test
    BS 6667-2:1985 Electromagnetic compatibility for industrial-process measurement and control equipment. Method of evaluating susceptibility to electrostatic discharge
    BS EN 60529:1992+A2:2013 Degrees of protection provided by enclosures (IP code)
    PD 6499:1981 Guide to insulation co-ordination within low-voltage systems including clearances and creepage distances for equipment
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