GB/T 32520-2016 Replaced National standards

GB/T 32520-2016 Metal-oxide surge arresters with external series gap(EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV

Publish Date: 2016-02-24 Implement Date: 2016-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 32520-2016

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Surge protector

ICS Name: Other standards related to insulation

Publish Date: 2016-02-24

Implement Date: 2016-09-01

Pages: 56 pages

Scope

This standard applies to outdoor string-type metal oxide surge arresters (hereinafter referred to as EGLA) used in overhead transmission and distribution lines with voltages above 1 kV, which are designed to protect the line insulation from lightning-induced flashover or breakdown. However, the following issues related to EGLAs that are connected to the line via an external string-type gap are not considered in this standard: — Operating impulse discharge voltage; — Steep wave and operating impulse residual voltage; — Thermal stability; — Long-duration current impulse withstand; — Time characteristics of the surge arresters' withstand voltage under power frequency; — Disconnecting device test; — Aging caused by power frequency voltage. Considering the specific design concepts and special applications of overhead transmission and distribution lines, some unique requirements and tests have been introduced, such as verification tests for insulation coordination between insulators and EGLA protection levels, inrush current interruption tests, mechanical load tests, etc.

Development Information

Word Count: 97 Thousand words Pages: 56 pages

Superseded by the following standards

GB/T 32520-2024 Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV

Referenced Standards

GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2423.17-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ka:Salt mist GB/T 2423.22-2012 Environmental testing—Part 2:Test methods—Test N:Change of temperature GB/T 2900.12-2008 Electrotechnical terminology—Surge arresters, low-voltage surge protective devices and components GB/T 2900.19-1994 Electrotechnical terminology High-voltage test technique and insulation co-ordination GB/T 4585-2004 Artificial pollution tests on high-voltage insulators to be used on a.c systems GB/T 7354-2003 Partial discharge measurements GB/T 11032-2010 Metal-oxide surge arresters without gaps for a.c. systems GB/T 16422.1-2006 Plastics—Methods of the exposure to laboratory light sources—Part 1:General guidance GB/T 16422.2-2014 Plastics—Methods of exposure to laboratory light sources—Part 2:Xenon-arc sources GB/T 22079-2008 Polymeric insulators for indoor and outdoor use with a nominal voltage > 1 000 V—General definitions,test methods and acceptance criteria GB/T 26218.1-2010 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 1:Definitions,information and general principles GB 311.1-1997 Insulation co-ordination for high voltage transmission and distribution equipment GB/T 311.1-2012 Insulation co-ordination—Part 1:Definitions,principles and rules GB/T 2317.2-2000 Corona and RIV tests for electric power fittings GB/T 2317.2-2008 Test method for electric power fittings—Part 2:Corona and RIV tests for electric power fittings 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 JB/T 7618-2011 Sealing test of lightning arrester according to JB/T 7618-2011

Adopt standards

IEC 60099-8:2011

Related Standards

GB 11032-2000 Abolished

GB 11032-2000 Metal oxide surge arresters without gaps for a.c.systems

Publish Date: 2000-01-03

GB/T 20639-2006 Active

GB/T 20639-2006 Artificial pollution testing of non-linear resistor type surge arresters with gaps

Publish Date: 2006-11-08

GB/T 18802.321-2007 Active

GB/T 18802.321-2007 Components for low-voltage surge protective devices—Part 321:Specifications for avalanche breakdown diode(ABD)

Publish Date: 2007-06-21

GB/T 18802.331-2007 Replaced

GB/T 18802.331-2007 Components for low-voltage surge protective devices—Part 331:Specification for metal oxide varistors(MOV)

Publish Date: 2007-06-21

GB/T 18802.341-2007 Active

GB/T 18802.341-2007 Components for low-voltage surge protective devices—Part 341:Specification for thyristor surge suppressors(TSS)

Publish Date: 2007-06-21

GB/T 2900.12-2008 Active

GB/T 2900.12-2008 Electrotechnical terminology—Surge arresters, low-voltage surge protective devices and components

Publish Date: 2008-01-22