JJF 1701.6-2019 Program of Pattern Evaluation of Instrument Transformers—Part 6:Three-phase Combined Instrument Transformers

JJF 1701.3-2019 Program of Pattern Evaluation of Instrument Transformers—Part 3:Inductive Voltage Transformers JJF 1701.4-2019 Program of Pattern Evaluation of Instrument Transformers—Part 4:Current Transformers JJF 1701.5-2019 Program of Pattern Evaluation of Instrument Transformers—Part 5:Capacitor Voltage Transformers

GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 20840.1-2010 Instrument transformers—Part 1:General requirements GB/T 20840.3-2013 Instrument transformers—Part 3:Additional requirements for inductive voltage transformers GB/T 20840.4-2015 Instrument transformers—Part 4:Additional requirements for combined transformers GB/T 22071.1-2018 Test guide for instrument transformers—Part 1:Current transformers GB/T 22071.2-2017 Test guide for instrument transformers—Part 2:Inductive voltage transformers JB/T 5895-1991 JJG 313-2010 Instrument Current Transformers JJG 314-2010 Instrument Voltage Transformers GB/T 4756-1998 Petroleum liquids—Manual sampling GB/T 4756-2015 Method for manual sampling of petroleum liquids GB/T 5465.2-1996 Graphical symbols for use on electrical equipment GB/T 5465.2-2008 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB/T 5465.2-2023 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB 5585.1-1985 Copper or aluminium and its alloy bus bars for electrical purposes—Part 1:General GB/T 5585.1-2005 Copper or aluminium and its alloy bus bars for electrical purposes—Part 1:Copper and copper alloy bus bars GB/T 5585.1-2018 Copper or aluminium and its alloy bus bars for electrical purposes—Part 1:Copper and copper alloy bus bars GB/T 7354-2003 Partial discharge measurements GB/T 7354-2018 High-voltage test techniques—Partial discharge measurements GB/T 16927.1-1997 High-voltage test techniques Part 1:General test requirements GB/T 16927.1-2011 High-voltage test techniques—Part 1:General definitions and test requirements GB/T 16927.2-1997 High-voltage test techniques Part 2:Measuring systems GB/T 16927.2-2013 High-voltage test techniques—Part 2:Measuring systems GB/T 20138-2006 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts(IK code) GB/T 20138-2023 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts(IK code) GB/T 20840.2-2014 Instrument transformers—Part 2:Additional requirements for current transformers JB/T 10432-2016 Three-Phase Combined Mutual Inductors JB/T 10433-2015 Three-phase voltage transformer JB/T 10432-2004 Three-phase combined transformer apparatus JB/T 10433-2004 Three-phase voltage transformer JJG 313-1994 Verification Regulation of Current Transformers of Measuring Service JJG 314-1994 Verification Regulation of Voltage Transformers of Measuring Service