This standard specifies the basic requirements and methods for terms and definitions, service conditions, ratings and performance, design and structure, installation and testing of DC voltage measuring devices for HVDC transmission systems. This standard is applicable to the DC voltage measurement devices installed on the DC pole busbar, the midpoint busbar and the neutral busbar of the double-twelve-pulse converter valve group of the DC transmission system with a voltage level of ±800kV and below.
GB 4208-2008 Degrees of protection provided by enclosure(IP code)
GB/T 11022-1999 Common specifications for high-voltage switchgear and controlgear standards
GB/T 16927.1-1997 High-voltage test techniques. Part 1: General test requirements
GB/T 16927.2-1997 High-voltage test techniques. Part 2: Measuring systems
GB/T 20635-2006 Special environment condition-Technical requirements of high-voltage apparatuses for plateau
GB/T 20840.7-2007 Instrument transformer Part 7: Electronic voltage transformers
GB/T 20840.8-2007 Instrument transformers Part 8: Electronic current transformers
GB/T 21429-2008 Composite insulators.Hollow insulators for use in outdoor and indoor electrical equipment.Definitions,test methods,acceptance criteria and design recommendations
GB/T 22079-2008 Polymeric insulators for indoor and out door use with a nominal voltage >1000 V. General definitions, test methods and acceptance criteria
GB/T 22707-2008 Artificial pollution tests on high-voltage insulators to be used on d.c.systems
GB/T 23752-2009 Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1000V
GB/T 2424.25-2000 Environmental testing for electric and electronic products-Part 3:Test guidance Seismic test methods