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EN 60950


EN 60950 is applicable in all countries of the European Union.

The following is a list of the major differences between this standard and IEC 60950:

  • Component Requirements for EN 60950 are given in Annex ZA.
  • Circumstances under which protection against short circuits, excess current and earth faults can be provided in the building installation, rather than as an integral part of the product, are described in Clause 2.7.1

In addition, the following differences apply to Denmark:

  • Certain types of Class I appliances (see sub-clause 3.2.1) may be provided with plug not establishing earthing continuity when inserted into Danish socket-outlets.
  • Supply cords of Class I equipment, delivered without a plug, must be provided with a visible tag with the following text:

    "Vigtigt !Lederen med gr¥n/gul isolation m¥ kun tilsluttes en klemme m¥rket (IEC 417, No. 5019) eller (IEC 417, No. 5017)."
    If essential for the safety of the equipment, the tag must in addition be provided with a diagram, which shows the connection of the other conductors, or be provided with the following text:
    "For tilslutning af de ¥vrige ledere, se medf¥lgende installationsvejledning".
  • Class II equipment shall not be fitted with socket-outlets for providing power to other equipment.
  • Caution text concerning lithium batteries:
     

ADVARSEL!
Lithiumbatteri - Eksplosionsfare ved fejlagtig h¥ndtering.
          Udskiftning m¥ kun ske med batteri
                 af samme fabrikat og type.
       Lev¥r det brugte batteri tilbage tilleverand¥ren.

The size of the warning must be a minimum of 26 x 52 mm, the background shall be yellow colour with black frame, and the text in black colour. A white background is acceptable in the User's Instruction and in the Service Manual.

  • The insulation between TNV circuits and any part of circuit connected to earth shall withstand an electric strength test of 500 V a.c.  r.m.s. for 1 min.
  • For Pluggable Equipment Type A, a surge suppressor shall not be connected to conductive metallic parts which are permitted to be accessible unless the equipment is used only in areas with equipotential bonding.

Note: This list is not complete.  Please refer to the standard itself for full information.


 

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All extracts from the publication IEC 60950 have been reproduced by kind permission of the International Electrotechnical Commission (IEC). Copyright © IEC, Geneva, Switzerland.