This standard specifies the general technical requirements, testing methods and judgment criteria for testing suspension insulators used in AC and DC power systems during installation and operation. This standard applies to disc-shaped suspended porcelain, glass insulators and rod-shaped suspended composite insulators (hereinafter referred to as insulators) for AC and DC overhead power lines, power plants, substations and converter stations with a nominal voltage higher than 1000V.
DL/T 626-2015 Referenced Document
DL/T 1474 Measurement and evaluation method of hydrophobicity of high voltage polymer insulators for AC and DC systems*， 2021-12-22 Update
DL/T 487-2000 The distribution voltage along insulator string on A.C.overhead transmission line with rated voltage of 330kV and 500kV
DL/T 741 Overhead Transmission Line Operation Regulations*， 2019-06-04 Update
DL/T 810 Technical specification for ± 500 kV or above D.C. long rod composite insulators
GB 50150 Electric equipment installation engineering-standard for hand-over test of electric equipment*， 2016-04-15 Update
GB/T 1001.1 Insulators for overhead lines with a nominal voltage above 1 000V—Part 1:Ceramic or glass insulator units for a.c.systems—Definitions,test methods and acceptance criteria*， 2021-12-31 Update
GB/T 19443 Insulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—Definitions,test methods and acceptance criteria*， 2017-11-01 Update
GB/T 19519 Insulators for overhead lines.Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V.Definitions, test methods and acceptance criteria
GB/T 2900.5 Electrotechnical terminology.Electrical insulating solids,liquids and gases