• SN EN 61558-2-2 : 1998

    Current The latest, up-to-date edition.

    SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR - PART 2-2: PARTICULAR REQUIREMENTS FOR CONTROL TRANSFORMERS

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    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 General requirements
    5 General notes on tests
    6 Ratings
    7 Classification
    8 Marking and other information
    9 Protection against electric shock
    10 Change of input voltage setting
    11 Output voltage and output current under load
    12 No-load output voltage
    13 Short-circuit voltage
    14 Heating
    15 Short-circuit and overload protection
    16 Mechanical strength
    17 Protection against harmful ingress of dust, solid objects and
       moisture
    18 Insulation resistance, dielectric strength and leakage current
    19 Construction
    20 Components
    21 Internal wiring
    22 Supply connection and other external flexible cables or cords
    23 Terminals for external conductors
    24 Provisions for protective earthing
    25 Screws and connections
    26 Creepage distances, clearances and distances through insulation
    27 Resistance to heat, fire and tracking
    28 Resistance to rusting
    Annexes
    Annex ZA (normative) Normative references to international
             publications with their corresponding European publications

    Abstract - (Show below) - (Hide below)

    Applies to control transformers and power supplies incorporating both control transformers and electronic circuits.

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    Document Type Standard
    Publisher Swiss Standards
    Status Current
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