GB/T 32520-2016
AbolishedMetal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV
交流1 kV以上架空输电和配电线路用带外串联间隙金属氧化物避雷器（EGLA）
Application Summary AI generated
This standard specifies technical requirements, test methods, and acceptance criteria for metal-oxide surge arresters with an external series gap (EGLA) used on overhead AC transmission and distribution lines operating above 1 kV. It is applied in the design, manufacturing, and quality verification of EGLA devices that protect line insulation from lightning overvoltages by isolating the arrester under normal operating voltage. The standard is primarily used by power utilities and equipment manufacturers for ensuring reliable overvoltage protection in high-voltage power grids.
Related Standards
GB/T 19443-2004
Insulators for overhead lines with a nominal voltage above 1000V--Ceramic or glass insulator units for d.c. systems--Difinitions，test methods and acceptance criteria
GB/T 4585-2004
Artificial pollution tests on high-voltage insulators to be used on a.c. systems
GB/Z 23756.1-2009
Evaluation of electrical endurance of electrical insulation systems - Part 1: General considerations and evaluation procedures based on normal distributions
GB/Z 16935.2-2013
Insulation coordination for equipment within low-voltage systems―Part 2-1: Application guide-Explanation of the application of the IEC 60664 series, dimensioning example and dielectric testing
GB/Z 16935.6-2016
Insulation coordination for equipment within low-voltage systems—Part 2-2: Interface considerations—Application guide
GB/Z 37754-2019
Guidance on clearances and creepage distances in particular for distances equal to or less than 2mm—Test results of research on influencing parameters
GB/Z 43963-2024
Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC
GB/T 775.2-2003
Test method for insulators--Part2: Electrical test methods
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.