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GB/T 1094.4-2005 Power transformers - Part 4: Guide to the lightning impulse and switching impulse testing - Power transformers and reactors 320.0 via email in 1~2 business day valid
JB/T 7068-2002 Metal expanders for instrument transformer 150.0 via email in 1~3 business day superseded
GB 19212.1-2008 Safety of power transformers power supplies reactors and similar products - Part 1: General requirements and tests 580.0 via email in 1~2 business day valid
JB/T 8749.1-2007 Voltage regulators-Part1:General requirements and tests 360.0 via email in 1~5 business day valid
GB/T 22072-2008 Specifications and technical requirements for dry-type amorphous alloy core distribution transformers 90.0 via email in 1~3 business day valid
JB/T 8317-2007 Oil-flow relays for transformer cooler 120.0 via email in 1~3 business day valid
GB/T 8554-1998 Transformers and inductors for use in electronic and telecommunication equipment - Measuring methods and test procedures 480.0 via email in 1~3 business day valid
JB/T 10431-2004 Power transformers immersed in fire resistance fluid 105.0 via email in 1~3 business day valid
DL/T 363-2010 Technical guide of equipment manufacturing supervision of EHV and UHV power transformers (reactors) 180.0 via email in 1~3 business day valid
GB 19212.9-2007 Safety of power transformers power supply units and similar devices—Part 9:Particular requirements for bell and chime transformers 120.0 via email in 1~3 business day superseded
HJ/T 224-2005 Technical requirement for environmental labeling products Dry-type power transformers 60.0 via email in 1~3 business day superseded
GB/T 18494.2-2007 Convertor transformers—Part 2:Transformers for HVDC applications 140.0 via email in 1 business day valid
GB 19212.3-2012 Safety of power transformers,power supplies,reactors and similar products—Part 3:Particular requirements and tests for control transformers and power supplies incorporating control transformers 240.0 via email in 1~3 business day valid
GB 19212.6-2013 Safety of transformers,reactors,power supply units and combinations thereof—Part 6:Particular requirements and test for transformer for shavers,power supply units for shavers and shaver supply units 240.0 via email in 1~3 business day valid
JB/T 5346-2014 Series reactors for high voltage shunt capacitors via email in business day valid
JB/T 10778-2007 Three-phase oil-immersed adjusting power transformers 90.0 via email in 1~3 business day valid
GB 19212.20-2008 Safety of power transformers power supply units and similar - Part 20: Particular requirements for perturbation attenuation transformers 150.0 via email in 1~3 business day valid
GB/T 6451-2008 Specification and technical requirments for oil-immersed power transformers 400.0 via email in 1~2 business day abolished
JB/T 10056-1999 Technical Conditions for DC Current Transformer 150.0 via email in 1~3 business day valid
GB 19212.17-2013 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100V - Part 17: Particular requirements and tests for switch mode power supply un 510.0 via email in 1~3 business day valid
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