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4. DKE

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

Overview

This International Standard deals with the safety requirements for switch mode power supply units and transformers for switch mode power supply units. Transformers incorporating electronic circuits are also covered by this standard. This part 2-16 applies to: a) switch mode power supply units incorporating safety isolating transformers providing SELV, PELV or FELV alternating current or direct current output voltage(s), or a combination thereof according to IEC 61140 and IEC 60364-4-41 for use with household and other consumer products, except for products covered by IEC 60065, series of standards IEC 61347, IEC 61204-7 and IEC 60950-1. b) Switch mode power supply units with a maximum output voltage not exceeding 1 000 V alternating current or 1 414 V ripple-free direct current for use with household and other consumer products, except for products covered in a) and products covered by IEC 60065, IEC 61347 series, IEC 61204-7 and IEC 60950-1. c) This standard may be used for transformers for use in switch mode power supply units (see Annex BB). This part covers the safety requirements for: - separating SMPS for general use corresponding to Part 2-1; - isolating SMPS for general use corresponding to Part 2-4; - safety isolating SMPS for general use corresponding to Part 2-6; - auto-SMPS for general use corresponding to Part 2-13. For SMPS for specific application corresponding to the other Parts 2 of 61558 series, the necessary requirements of the relevant Parts 2 are applicable. In addition, the requirements listed in this part apply. Where two requirements are in conflict, the most severe takes precedence. Switch mode power supply units covered by this standard are air cooled (natural or forced) independent, associated, stationary, portable, single-phase, or polyphase, with the rated supply voltage not exceeding 1 100 V alternating current. The rated supply frequency does not exceed 500 Hz, the rated internal operating frequency does exceed 500 Hz, but does not exceed 100 MHz, and the rated output does not exceed 1 kVA or 1 kW, incorporating dry-type transformers with encapsulated or non-encapsulated windings. Associated transformers for switch mode power supply units covered by Annex BB of this standard shall have a rated output not exceeding the following values: - 25 kVA for single-phase transformers; - 40 kVA for polyphase transformers. The no-load output voltage and the rated output voltage of switch mode power supply units shall not exceed the following values: - 1 000 V alternating current or 1 415 V ripple-free direct current when separating transformers or auto-transformers are used; - 500 V alternating current or 708 V ripple-free direct current when isolating transformers are used; - 50 V alternating current or 120 V ripple-free direct current when safety isolating transformers are used. The no-load output voltage or the rated output voltage of independent switch mode power supply units shall not be less than the following values: - 50 V alternating current or 120 V ripple- free direct current when separating transformers or autotransformers are used. This standard is also applicable to switch mode power supply units, converters and inverters without limitation of the rated output. However, such switch mode power supply units are for special applications and are subject to an agreement between the purchaser and the manufacturer. This standard may also be used as a guide for products not covered by the scope of this standard, the scope of IEC 61204-7, or the scope of IEC 61347 series. Compared with DIN EN 61558-2-16 (VDE 0570-2-16):2010-07, the use of FIW wires in SMPS has been added. The manufacturer should be careful, that during production and transport no damage of the FIW wire will be possible. The responsible body is DKE/K 323 "Transformatoren, Drosseln, Netzgeräte und entsprechende Kombinationen" ("Transformers, reactors, power supply units and combinations thereof") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.

Document: references other documents

Document: referenced in other documents

Responsible national committee

DKE/K 323 - Transformatoren, Drosseln, Netzgeräte und entsprechende Kombinationen