GB 19212.2-2012
Safety of power transformers,power supplies,reactors and similar products.Part 2:Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications (English Version)

Standard No.

GB 19212.2-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 19212.2-2012

Replace

GB 19212.2-2006

Scope

This chapter of GB 19212.1-2008 is replaced with the following content: This part of GB 19212 specifies the safety regulations for general-purpose separating transformers and power supplies with built-in separating transformers, such as safety regulations on electrical, temperature and mechanical aspects. This section applies to separating transformers and power supplies with built-in separating transformers and electronic circuits. This section does not apply to external circuits and their components intended to be connected to the input and output terminals or output sockets of transformers and power supplies. This section does not apply to transformers included in IEC 60076-11. This section applies to power supplies of stationary or mobile, single-phase or multi-phase, air-cooled (self-cooled or air-cooled), independent or supporting separating transformers and built-in separating transformers, whose rated power supply voltage does not exceed AC 1000V, rated Power frequency and internal operating frequency do not exceed 500Hz. The rated output shall not exceed: --- 1kVA for single-phase separation transformer and single-phase power supply with built-in separation transformer; --- 5kVA for multi-phase power supply with multi-phase separation transformer and built-in separation transformer. When there is an agreement, this section also applies to separation transformers and power supplies with built-in separation transformers that do not limit the rated output. This standard applies to dry-type transformers, the windings of which may be encapsulated or non-encapsulated. No-load output voltage or rated output voltage does not exceed AC 1000V or ripple-free DC 1415V. For independent separation transformers and independent power supplies with built-in separation transformers, the no-load output voltage and/or rated output voltage shall not be lower than AC 50V or ripple-free DC 120V. Isolating transformers covered by this standard are intended for use only where double or reinforced insulation between circuits is not required by installation regulations or end product standards. This section applies to the separation transformers and power supplies with built-in separation transformers associated with a certain command equipment (the scope of which is determined by the relevant technical committee).

GB 19212.2-2012 history

• 2012 GB 19212.2-2012 Safety of power transformers,power supplies,reactors and similar products.Part 2:Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
• 2006 GB 19212.2-2006 Safety of power transformers, power supply units and similar. Part 2: Particular requirements for separating transformers for general use

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