GB/T 12669-1990 General specification for cascade speed control assembly with semiconductor converter

GB/T 12669-2012 General specification for cascade speed control assembly with semiconductor converter

ZB K62 001 JB 2438 JB 3975 GB/T 2424.7-2006 Environmental tests for electric and electronic products—Measurements in temperature chambers for tests A and tests B (with load) GB/T 2424.7-2024 Environmental testing—Part 3:Supporting documentation and guidance—Meas-urements in temperature chambers for tests A(Cold)and B(Dry heat)(with load) GB/T 2681-1981 Colors of insulated conductors used in electrical assembly devices GB/T 2682-1981 Colors of indicator lights and push-buttons used in electrical assembly devices GB/T 2900.1-1992 Electrotechnical terminology—Fundamental terms GB/T 2900.1-2008 Electrotechnical terminology—Fundamental terms GB/T 2900.33-1993 Electrotechnical terminology—Power electronics GB/T 2900.33-2004 Electrotechnical terminoligy—Power electronics GB/T 2900.34-1983 Electrotechnical terminology—Electric drive and its automatic control GB/T 3797-2005 Electrical control assemblies GB/T 3797-2016 Electrical control assemblies GB/T 3859.1-1993 Semiconductor convertors—Specification of basic requirements GB/T 3859.1-2013 Semiconductor converters—General requirements and line commutated converters—Part 1-1:Specification of basic requirements GB/T 3859.2-1993 Semiconductor convertors—Application guide GB/T 3859.2-2013 Semiconductor converters—General requirements and line commutated converters—Part 1-2:Application guide GB/T 3859.3-1993 Semiconductor convertors—Transformers and reactors GB/T 3859.3-2013 Semiconductor converters—General requirements and line commutated converters—Part 1-3:Transformers and reactors GB/T 3859.4-2004 Semiconductor converter—Self-commutated semiconductor converters including direct d.c.converters GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 4588.1-1996 Sectional specification:single and double sided printed boards with plain holes GB/T 4588.2-1996 Sectional specification:single and double sided printed boards with plated-through holes