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Full Description

Requirements for stationary or portable, single-phase or polyphase, air-cooled reduced system voltage transformers having a rated supply voltage not exceeding 1000 V and a rated output not exceeding 25 KVA single-phase or 40 KVA polyphase. To be read in conjunction with BS 3535-1:1990

Partially replaced by sections of BS EN 61558. Only to be used for equipment not covered by the BS EN 61558 series.
 

Document History

  1. BS EN IEC 61558-1:2019


    Safety of transformers, reactors, power supply units and combinations thereof-General requirements and tests

    • Most Recent
  2. BS EN 61558-1:2005+A1:2009


    Safety of power transformers, power supplies, reactors and similar products-General requirements and tests

    • Historical Version
  3. BS EN 61558-1:2005


    Safety of power transformers, power supplies, reactors and similar products. General requirements and tests

    • Historical Version
  4. BS EN 61558-1:1998


    Safety of power transformers, power supply units and similar-General requirements and tests

    • Historical Version
  5. BS 3535-2:1990

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    Isolating transformers and safety isolating transformers-Specification for transformers for reduced system voltage

    • Historical Version
  6. BS EN 60742:1996


    Isolating transformers and safety isolating transformers. Requirements

    • Historical Version
  7. BS 3535-1:1990


    Isolating transformers and safety isolating transformers-General requirements

    • Historical Version
  8. BS 4435-1:1969


    Specification for power supply units for extra low voltage output-Units for indoor use

    • Historical Version
  9. BS 3052:1958


    Specification. Electric shaver supply units

    • Historical Version
  10. BS 3535:1962


    Specification for safety isolating transformers for industrial and domestic purposes

    • Historical Version