BS EN 61558-2-8:2010 PDF

Scope: This part of IEC 61558 deals with the safety of bell and chime transformers and power supply units incorporating bell and chime transformers. Transformers incorporating electronic circuits are also covered by this standard. Unless otherwise specified, from here onward, the term transformer covers bell and chime transformers and power supply units incorporating bell and chime transformers. This part is applicable to stationary, single-phase, air-cooled (natural or forced) independent or associated dry-type transformers. The windings may be encapsulated or nonencapsulated. This standard is applicable to transformers and power supply (linear). This standard used in combination with part 2-16 for switch mode power supply (SMPS) units is also applicable to power supplies with internal operating frequencies higher than 500 Hz. Where the two requirements are in conflict, the most severe takes precedence. The rated supply voltage does not exceed 250 V a.c., and the rated supply frequency and does not exceed 500 Hz. This standard is applicable to transformers and linear power supply units with internal operating frequency not exceeding 500 Hz. The rated output shall not exceed 100 VA.

BS EN 61558-2-8:2010 history

2010 BS EN 61558-2-8:2010 Safety of transformers, reactors, power supply units and combinations thereof. Particular requirements and tests for transformers and power supply units for bells and chimes
2006 BS EN 61558-1:2005+A1:2009 Safety of power transformers, power supplies, reactors and similar products — Part 1: General requirements and tests
2006 BS EN 61558-1:2005 Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests
1998 BS EN 61558-1:1998 Safety of power transformers, power supply units and similar - General requirements and tests
1996 BS EN 60742:1996 Isolating transformers and safety isolating transformers - Requirements
0000 BS 3535-1:1990