BS EN 61558-2-6:2009
Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V. Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers

Standard No.

BS EN 61558-2-6:2009

Release Date

2010

Published By

British Standards Institution (BSI)

Status

Be replaced 2010-01

Replace By

BS EN 61558-2-6:2010

Latest

BS EN 61558-2-6:2010

Replace

06/30158173 DC-2006 BS EN 61558-2-6:1998

Scope

Replacement: This part of IEC 61558 deals with the safety of safety isolating transformers for general applications and power supply units incorporating safety isolating transformers for general applications. Transformers incorporating electronic circuits are also covered by this standard. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified, from here onward, the term transformer covers safety isolating transformers for general applications and power supply units incorporating safety isolating transformers for general applications. NOTE 2 For power supply units (linear) this part is applicable. For switch mode power supply units, IEC 61558-2-16 is applicable together with this part. This part is applicable to stationary or portable, single-phase or polyphase, air-cooled (natural or forced) independent or associated dry- type transformers. The windings may be encapsulated or non-encapsulated. The rated supply voltage does not exceed 1 100 V a.c., and the rated supply frequency and the internal operating frequencies do not exceed 500 Hz. The rated output does not exceed: – 10 kVA for single-phase transformers; – 16 kVA for polyphase transformers. This part is applicable to transformers without limitation of the rated output subject to an agreement between the purchaser and the manufacturer. NOTE 3 Transformers intended to supply distribution networks are not included in the scope. The no-load output voltage or the rated output voltage does not exceed 50 V a.c. or 120 V ripple-free d.c. This part is not applicable to external circuits and their components intended to be connected to the input terminals and output terminals of the transformers. Transformers covered by this part are used in applications where double or reinforced insulation between circuits is required by the installation rules or by the end product standard.

BS EN 61558-2-6:2009 history

• 2010 BS EN 61558-2-6:2010 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V. Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
• 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