Bushings. Seismic qualification

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-08-2016

Publisher

British Standards Institution

IECTS61463 , which is a Technical Specification, is applicable to alternating current and direct current bushings for highest voltages above 52kV (or with resonance frequencies placed inside the seismic response spectrum), mounted on transformers, other apparatus or buildings. For bushings with highest voltages less than or equal to 52kV (or with resonance frequencies placed outside from the seismic response spectrum), due to their characteristics, seismic qualification is not used as far as construction practice and seismic construction practice comply with the state of the art. This document presents acceptable seismic qualification methods and requirements to demonstrate that a bushing can maintain its mechanical properties, insulate and carry current during and after an earthquake. The seismic qualification of a bushing is only performed upon request.

Committee	PEL/36
DocumentType	Standard
Pages	44
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
IEC TS 61463:2016	Identical

IEC 62271-207:2012	High-voltage switchgear and controlgear - Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV
IEC 62155:2003	Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V
IEC 62217:2012	Polymeric HV insulators for indoor and outdoor use - General definitions, test methods and acceptance criteria
IEC 60068-2-57:2013	Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history and sine-beat method
IEC 60068-3-3:1991	Environmental testing - Part 3-3: Guidance - Seismic test methods for equipments
ISO 2041:2009	Mechanical vibration, shock and condition monitoring Vocabulary
IEC 60068-2-47:2005	Environmental testing - Part 2-47: Test - Mounting of specimens for vibration, impact and similar dynamic tests
IEC 60721-2-6:1990	Classification of environmental conditions. Part 2: Environmental conditions appearing in nature. Earthquake vibration and shock
IEC 61462:2007	Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1 000 V - Definitions, test methods, acceptance criteria and design recommendations
IEC 60137:2017	Insulated bushings for alternating voltages above 1000 V
IEC 62231:2006	Composite station post insulators for substations with a.c. voltages greater than 1 000 V up to 245 kV - Definitions, test methods and acceptance criteria
IEEE 693-2005	IEEE Recommended Practice for Seismic Design of Substations