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ONGLET DE NORMES TECHNIQUES

EN 61558-2-4

Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V
Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers

ANNEE FILE EDITION SCAME
       

European Standard

 

Sommaire
(courtoisie CENELEC)

This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, air-cooled isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c. and rated frequency not exceeding 500 Hz, the rated output not exceeding:
– 25 kVA for single-phase transformers;
– 40 kVA for polyphase transformers.


This standard is also applicable to isolating transformers without limitation of the rated output, however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier.
The no-load output voltage or the rated output voltage does not exceed 500 V a.c. or 708 V ripple-free d.c.


NOTES
1 The no-load output voltage or the rated output voltage may be up to 1000 V a.c. or 1 415 V ripple-free d.c. to be in accordance with the national wiring rules or for a special purpose.
2 This standard is applicable to those isolating transformers used when the installation rules call for the separation of circuits for the supply of certain parts of the circuits or of equipment (portable tools, lawn mowers, etc.).

The no-load output voltage and/or the rated output voltage shall exceed 50 V a.c. and/or 120 V ripple-free d.c.
This standard is also applicable to transformers associated with specific items of equipment, to the extent decided upon by the relevant IEC technical committees.
This standard is applicable to dry type transformers. The windings may be encapsulated or non-encapsulated.

NOTES
3 For transformers filled with liquid dielectric or pulverized material, such as sand, additional requirements are under consideration.
4 In locations where special environmental conditions prevail, particular requirements may be necessary in accordance with IEC 364-5-51.

 



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Les principales normes
liées à EN 61558-2-4


 

Normes européennes correspondantes
Aucune donnée disponible
 
Normes internationales correspondantes
IEC 61558-2-4Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V
Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers
 
Organisations et Institutuins
CENELECEuropean Committee for Electrotechnical Standardization
[European Standard]
 
D'autres normes liées CENELEC
EN 60076-5 Power transformers
Part 5: Ability to withstand short-circuit
EN 60601-1 Medical Electrical Equipment
Part 1: General Requirements for Safety and Essential Performance
EN 61558-1 Safety of power transformers, power supply units and similar.
General requirements and tests
EN 61558-2-1 Safety of power transformers, power supplies, reactors and similar products
Part 2-1: Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
EN 61558-2-13 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V
Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers
EN 61558-2-15 Safety of Power Transformers, Power Supply Units and Similar
Part 2-15: Particular Requirements for Isolating Transformers for the Supply of Medical Locations
EN 61558-2-2 Safety of Power Transformers, Power Supply Units and Similar
Part 2-2: Particular Requirements for Control Transformers
EN 61558-2-4 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V
Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers
EN 61558-2-5 Safety of transformers, reactors, power supply units and combinations thereof - Part 2-5: Particular requirements and test for transformer for shavers, power supply units for shavers and shaver supply units.
EN 61558-2-6 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V
Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
 
Collection thématique
Transformers

 


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