This part specifies the safety requirements for the following transformers in various aspects: stationary or mobile, single-phase or multi-phase, air-cooled, isolation transformers and safety isolation transformers for supporting or other applications. This part applies to dry-type transformers, whose windings can be sealed or unsealed GB 19212.1-2003 Safety of power transformers, power supply units and similar products Part 1: General requirements and tests GB19212.1-2003 standard download decompression password: www.bzxz.net

ICS29.180
National Standard of the People's Republic of China
GB19212.1—2003
Partially replaces GB1
Safety of power transformers, power supply units and similarPart 1:General requirements and tests tests(IEC61558-1:1998,MOD）
2003-06-24 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2004-02-01 Implementation
Normative references
General requirements
General description of the test
Rated values
Marking and other information
Protection against contact with hazardous live parts.
Change of input voltage setting value
Load output voltage and output current
No-load output voltage
Short-circuit voltage
Short-circuit and overload protection
Mechanical strength
Protection against harmful ingress of dust, solid foreign objects and moisture. Insulation resistance and dielectric strength
Components
Internal wiring
Power supply connection and other external flexible cables or cords External conductor terminals
Protective earthing device
Screws and connections
Creep distance, electrical clearance and distance through insulation.
Heat resistance, resistance to abnormal heat, flame resistance and resistance to tracking..Rust resistance
Appendix A (Normative Appendix)
Appendix B (Normative Appendix)
Appendix C (Normative Appendix)
Appendix D (Normative Appendix) Appendix E (Normative Appendix)bZxz.net
Appendix F (Normative Appendix)
Appendix G (Normative Appendix)
Measurement of creepage distance and electrical clearance
Tests on series transformers
Creep distance (cr), electrical clearance (cl) and distance through insulation (dti)Creep distance (cr), electrical clearance (cl) and distance through insulation (dti)Glow-wire test
Requirements for switches in accordance with GB15092-2000Tracking test
GB 19212.1-2003
Material Group II
Material Group I
GB 19212.12003
Appendix H (Normative Appendix)
Appendix J (Normative Appendix)
Appendix K (Normative Appendix)
Appendix L (Informative Appendix)
Appendix M (Informative Appendix)
Appendix N (Informative Appendix)
Appendix P (Informative Appendix)
Appendix Q (Informative Appendix)
Appendix R (Informative Appendix)
Appendix S (Informative Appendix)
Appendix T (Informative Appendix)
Appendix U (Informative Appendix)
Appendix V (Informative Appendix)
Electronic and Electrical
Touch current measuring network
Insulated winding wire for multi-layer insulation
Routine test (production test)
Example for guidance on the application of 19.1
Example of test voltage application point
Example of creepage distance and electrical clearance measurement point Explanation of the IP code for protection degree..
Explanation of the application of 4.1.1.2.1 in GB/T 16935.1-1997 References
Definition index
List of relevant special requirements for other parts Symbols for thermal cut-outs
All technical contents of this part of GB 19212 are mandatory. GB19212 "Safety of Power Transformers, Power Supply Units and Similar Products" is currently divided into 24 parts: Part 1: General requirements and tests; Part 2: Particular requirements for general purpose separation transformers; Part 3: Particular requirements for control transformers; Part 4: Particular requirements for gas and oil burner ignition transformers; Part 5: Particular requirements for general purpose isolation transformers; Part 6: Particular requirements for shaver transformers and shaver power supply units; Part 7: Particular requirements for general purpose safety isolation transformers; Part 8: Particular requirements for transformers for toys; Part 9: Particular requirements for bell and clock transformers; Part 10: Particular requirements for transformers for Class III portable tungsten filament lamps; Part 11: Particular requirements for transformers with high insulation grade with working voltage above 1000V Special requirements, Part 12: Special requirements for leakage field transformers; Part 13: Special requirements for constant voltage transformers; Part 14: Special requirements for autotransformers; Part 15: Special requirements for voltage regulators; Part 16: Special requirements for isolation transformers for power supply in medical places, Part 17: Special requirements for power supply units and similar products; Part 18: Special requirements for transformers for switching power supplies; Part 19: Special requirements for transformers for medical equipment; Part 20: Special requirements for interference attenuation transformers; Part 21: Special requirements for small reactors; Part 22: Special requirements for transformers with special media (liquid media SF.); Part 23: Special requirements for transformers with maximum rated temperature for lamps; Part 24: Special requirements for transformers for construction sites. This part is Part 1 of GB19212.
GB19212.1-2003
This part is modified to adopt IEC61558-1:1998 "Safety of power transformers, power supply units and similar products Part 1: General requirements and tests" (English version).
This part replaces the first part of GB13028-1991 "Technical requirements for isolation transformers and safety isolation transformers". The technical differences between this part and IEC61558-1:1998 are as follows: In the reference of Appendix S (informative appendix), GB156-1993 "Standard voltage" replaces IEC60038:1993 "IEC standard voltage", and GB12325-1990 "Permissible deviation of power supply voltage for energy quality" is added. GB156-1993 stipulates that the nominal voltage value of the three-phase four-wire system or three-phase three-wire system and the rated voltage value of electrical equipment are 220V/380V, IEC60038:1983 stipulates that it is 230V/400V. The allowable deviation between the power supply voltage and the rated voltage is +7% and -10% as stipulated in GB12325-1990, and +6% and -10% as stipulated in IEC60038. The technical differences caused by this have been compiled into the text and marked with vertical lines in the margins of the clauses they involve. For ease of use, this part has made the following editorial changes: a) "This international standard" was changed to "this part" GB19212.1-2003
b) "The relevant Part 2 of this part" or "The relevant Part 2" was changed to "The relevant special requirements of other parts of GB19212"c) The decimal point \\ was used instead of the comma "," as the decimal point, the foreword of IEC61558-1:1998 was deleted, and the introduction of IEC61558-1:1998 was modified. d)
Appendix T of IEC61558-1:1998 was omitted. (Informative Appendix) Definition Index" and "List of relevant special requirements in Appendix U (Informative Appendix)"
22.4 Line 2\(See 3.2.1)" is incorrect and should be changed to "(See 3.2.2)" (see line 2 of 22.4 of this part); f)
F.1 Line 18 Chapter F.2." is incorrect and should be changed to Chapter F.3\see line 12 of F.1 of this part) F.3 Line 5\(See 5.2e))\ is incorrect and should be changed to \(See 8.1d))\(see line 3 of F.3 of this part); Appendix G Lines 6, 7 and 8 "Material Group I600
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