GSO IEC TS 62271-304:2021

Gulf Standard   Current Edition
· Approved on 01 July 2021 ·

High-voltage switchgear and controlgear - Part 304: Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to condensation and pollution

High voltage switchgear and controlgear
Including enclosed switchgear and controlgear

GSO IEC TS 62271-304:2021 Files

GSO IEC TS 62271-304:2021 Scope

IEC TS 62271-304:2019 applies to indoor enclosed switchgear and controlgear complying with IEC 62271-200 and IEC 62271-201, intended to be used in special service conditions with respect to condensation and pollution deviating from the normal service conditions specified in IEC 62271-1.


The test detailed in this document has been designed primarily to classify the electrical insulation performance of equipment having high-voltage electrical insulation exposed to indoor service conditions, mainly in presence of condensation. The assessment of mechanical components, such as mechanisms, interlocks and enclosure is also considered.
This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

a) the description of the several service conditions under condensation and pollution;

b) the classification of enclosed switchgear and controlgear, according to the testing procedure does not cover polluted service conditions PL and PH;

c) a wider description in Annex B of typical indoor environments based on ISO/IEC standards;

d) a new Annex C giving guidance on precautions to improve indoor operating conditions;

e) a new Annex D dedicated to the optional items such as records of mechanical characteristics;

f) a new Annex E, giving additional combinations of environments with condensation and pollution, as well as a proposal of testing procedure of ageing test, is provided to create experience on correlation between ageing effects in laboratory and ageing effects at site conditions.

Best Sellers From Electrical Sector

GSO 2530:2016
 
Gulf Standard
Energy Labelling And Minimum Energy Performance Requirements For Air-Conditioners
GSO 34:2007
 
Gulf Technical Regulation
LEAD-ACID STARTER BATTERIES USED FOR MOTOR VEHICLES AND INTERNAL COMBUSTION ENGINES
BH GSO 34:2015
GSO 34:2007 
Bahraini Technical Regulation
LEAD-ACID STARTER BATTERIES USED FOR MOTOR VEHICLES AND INTERNAL COMBUSTION ENGINES
GSO 35:2007
 
Gulf Standard
Methods of test for lead-acid starter batteries used for motor vehicles and internal combustion engines

Recently Published from Electrical Sector

GSO IEC 60794-2-50:2024
IEC 60794-2-50:2023 
Gulf Standard
Optical fibre cables - Part 2-50: Indoor cables - Family specification for simplex and duplex cables for use in terminated cable assemblies
GSO IEC 60404-8-7:2024
IEC 60404-8-7:2020 
Gulf Standard
Magnetic materials - Part 8-7: Specifications for individual materials - Cold-rolled grain-oriented electrical steel strip and sheet delivered in the fully-processed state
GSO IEC 60884-3-1:2024
IEC 60884-3-1:2021 
Gulf Standard
Plugs and socket-outlets for household and similar purposes - Part 3-1: Particular requirements for socket-outlets incorporating USB power supply
GSO IEC 61987-31:2024
IEC 61987-31:2022 
Gulf Standard
Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 31: List of Properties (LOPs) of infrastructure devices for electronic data exchange – Generic structures