BS EN 61558-2-9:2011 PDF

Safety of transformers, reactors, power supply units and combinations thereof - Particular requirements and tests for transformers and power supply units for class III handlamps for tungsten filament lamps

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BS EN 61558-2-9:2011

Формат:: Электронный (PDF)
Дата публикации:: 31 марта 2011 г.
ICS:: 29.180
Технический комитет:: CENELEC
SKU:: BS EN 61558-2-9:2011

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Abstract

1 Scope

Replacement:

This part of IEC 61558 deals with the safety of transformers for class III handlamps for tungsten filament lamps and power supply units incorporating transformers for class III handlamps for tungsten filament lamps . Transformers incorporating electronic circuits are also covered by this standard.

NOTE 1 Safety includes electrical, thermal, mechanical and chemical aspects.

Unless otherwise specified, from here onward, the term transformer covers transformers for class III handlamps for tungsten filament lamps and power supply units incorporating transformers for class III handlamps for tungsten filament lamps . This part is applicable to stationary or portable single-phase air-cooled (natural or forced) independent or associated dry-type transformers. The windings may be encapsulated or non-encapsulated. This standard is applicable to transformers and power supply (linear) with internal operational frequencies not exceeding 500 Hz. This standard used in combination with Part 2-16 for switch mode power supply ( SMPS ) units is also applicable to power supplies with internal operational frequencies higher than 500 Hz. Where the two requirements are in conflict, the most severe take precedence. The rated supply voltage does not exceed 1 000 V a.c., and the rated supply frequency and the internal operational frequencies do not excee...

BS EN 61558-2-9:2011 PDF

Abstract

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