GB 19212.1-2008
Safety of power transformers, power supplies,reactors and similar products.Part 1: General requirements and tests (English Version)

Standard No.

GB 19212.1-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

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

Status

Be replaced 2017-03

Replace By

GB/T 19212.1-2016

Latest

GB/T 19212.1-2023

Replace

GB 19212.1-2003

Scope

This part of GB1 9212 specifies the safety requirements for power transformers, power supplies, reactors and similar products, such as electrical, temperature and mechanical safety requirements. This standard covers the following types of dry-type transformers, power supplies (including switched-mode power supplies) and reactors, the windings of which may be encapsulated or unencapsulated. a) Stationary or mobile, single-phase or multi-phase, air-cooled (self-cooled or air-cooled), stand-alone or supporting isolating and safety isolating transformers not forming part of the distribution network, having the following characteristics: - the rated power supply voltage does not exceed 1000V AC; - the rated frequency does not exceed 500 Hz; and, unless otherwise specified in other parts of GB 19212, the value that meets the following requirements: For isolation transformers: - the rated output of single-phase transformers is not More than 25kVA, multi-phase transformers not exceeding 40kVA; ——No-load output voltage and rated output voltage exceeding AC 50V but not exceeding AC 500V, or according to the provisions of national wiring regulations or for a special purpose, not exceeding AC 1000V. For safety isolation transformers: ——The rated output of single-phase transformers does not exceed 10kVA, and that of multi-phase transformers does not exceed 16kVA; —— Between conductors or between any conductor and protective earth, the no-load output voltage and rated output voltage do not exceed AC 50V. b) Standing or mobile, single-phase or multi-phase, air-cooled (self-cooled or air-cooled), stand-alone or complementary, separating transformers, self-transformers, voltage regulators and Small reactors having the following characteristics: - rated power supply voltage not exceeding AC 1000V; - rated power supply frequency not exceeding 500Hz; and, unless otherwise specified in other parts of GB 19212, complying with the following values: The no-load output voltage and the rated output voltage of the transformer used as a supporting device shall not exceed AC 15kV, and the rated output voltage of the transformer used independently shall not be less than AC 50V. ·The rated output shall not exceed the following specified values: ——For single-phase transformer, 1kVA; ——For single-phase reactor, 2kvar; ——For multi-phase transformer, 5kVA; ——For phase-to-phase reactor, 10kvar. c) Stationary or mobile, single-phase or multi-phase, air-cooled (self-cooled or air-cooled), independent or supporting, equipped with one or more type a) or b) transformers, not forming a distribution Power supplies and switched-mode power supplies that are part of an electrical network, having the following characteristics: - rated supply voltage not exceeding 1000 V a.c.; - rated supply frequency - exceeding 500 Hz; - internal operating frequency, for power supplies, not exceeding 500 Hz, for switching power supply, not exceeding 100 MHz; and, unless otherwise specified in other parts of GB 19212, have the following specified values: For power supplies and switch-mode power supplies equipped with isolation transformers: - single-phase or multi-phase power supplies or switch-mode power supplies Rated output does not exceed 1kVA; ——No-load output voltage and rated output voltage exceed AC 50V or ripple-free DC 120V, but not more than 500V or ripple-free DC 708V, or according to the provisions of national wiring regulations or for a special purpose , not exceeding AC or ripple-free DC 708V, or according to the provisions of the national wiring regulations or for a special purpose, not exceeding AC 1000V or ripple-free DC 1000V. For the power supply and shape power supply equipped with a safety isolation transformer; - the rated output of single-phase or multi-phase power supply and shape power supply is not more than 1kVA; - between the wires or between any wire and the protective earth, no-load Output voltage and rated output voltage do not exceed AC 50V or ripple-free DC 120V. ·For power supplies and switch-mode power supplies equipped with separation transformers, autotransformers and voltage regulators: - the rated output of single-phase or multi-phase power supplies and switch-mode power supplies shall not exceed 1kVA; - for both independent and supporting applications For transformers, the no-load output voltage and rated output voltage shall not exceed AC 15kV, and for independent transformers, the rated output voltage shall not be less than AC 50V; d) This part is also applicable to rated output not exceeding 1000VA, t Transformers marked with t_w not greater than 140°C (t_w). However, the t_w flag of the transformer is optional. This standard also applies to transformers, power supplies, switching power supplies and reactors incorporating electronic circuits.

GB 19212.1-2008 Referenced Document

• GB 1002-1996 Single phase plugs and socket-outlets for household and similar purposes. Types、basic parameters and dimensions
• GB 1094.1 Power transformers.Part 1: General*， 2013-12-17 Update
• GB/T 2423.2-2001 Environmental testing for electric and electronic products Part 2: Test methods Tests B: Dry heat
• GB/T 2423.55-2006 Environmental testing for electric and electronic products.Part 2:Test methods.Test Eh:Hammer tests
• GB/T 2423.8-1995 Environmental testing for electric and electronic products. Parts 2: Test methods. Test Ed: Free fall
• GB/T 4074.3-1999 Test methods for winding wires-- Part 3: Mechanical properties
• GB/T 4074.5-1999 Test methods for winding wires --Part 5: Electrical properties
• IEC 60884-2-4 Plugs and socket-outlets for household and similar purposes - Part 2-4: Particular requirements for plugs and socket-outlets for SELV
• IEC 60898 Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations
• IEC 60906-1 IEC System of plugs and socket-outlets for household and similar purposes - Part 1: Plugs and socket-outlets 16 A 250 V a.c.*， 2009-04-01 Update
• IEC 60906-3 IEC System of plugs and socket-outlets for household and similar purposes - Part 3: SELV plugs and socket-outlets, 16 A 6 V, 12 V, 24 V, 48 V, a.c. and d.c.
• IEC 60947-7-1 Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors*， 2009-04-01 Update
• IEC 60998-2-1 Connecting devices for low-voltage circuits for household and similar purposes - Part 2-1: Particular requirements for connecting devices as separate entities with screw-type clamping units
• IEC 60998-2-2 Connecting devices for low-voltage circuits for household and similar purposes - Part 2-2: Particular requirements for connecting devices as separate entities with screwless-type clamping units
• IEC 60999-1 Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm<(hoch)2> up to 35 mm<(hoch)2>
• IEC 61032:1997 Protection of persons and equipment by enclosures - Probes for verification
• IEC 61180-1 High-voltage test techniques for low-voltage equipment; part 1: definitions, test and procedure requirements
• IEC 61180-2 High-voltage test techniques for low-voltage equipment - Part 2: Test equipment
• ISO 4 Information and documentation - Rules for the abbreviation of title words and titles of publications

GB 19212.1-2008 history

• 2023 GB/T 19212.1-2023 Safety of transformers, reactors, power supply units and combinations thereof Part 1: General requirements and tests
• 2016 GB/T 19212.1-2016 Safety of transformers, reactors，power supply units and combinations thereof—Part 1: General requirements and tests
• 2008 GB 19212.1-2008 Safety of power transformers, power supplies,reactors and similar products.Part 1: General requirements and tests
• 2003 GB 19212.1-2003 Safety of power transformers,power supply units and similar--Part 1: General requirements and tests

GB 19212.1-2008 Safety of power transformers, power supplies,reactors and similar products.Part 1: General requirements and tests was changed to GB/T 19212.1-2016 Safety of transformers, reactors，power supply units and combinations thereof—Part 1: General requirements and tests.

GB 19212.1-2008 -All Parts