GSO IEC 62271-105:2025
IEC 62271-105:2021
Gulf Standard
Current Edition
·
Approved on
22 April 2025
High-voltage switchgear and controlgear - Part 105: Alternating current switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV
GSO IEC 62271-105:2025 Files
English
106 Pages
Current Edition
Reference Language
Obtaining this standard through the store is currently unavailable. You can acquire it directly from its source.
GSO IEC 62271-105:2025 Scope
IEC 62271-105:2021 applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches composed of switches or switch-disconnectors and current-limiting fuses designed so as to be capable of
- breaking, at the rated voltage, any current up to and including the rated short-circuit breaking current;
- making, at the rated voltage, circuits to which the rated short-circuit breaking current applies.
This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- the document has been updated to be in alignment with the second edition of IEC 62271-1:2017;
- rated TRV has been removed (TRV is only a test parameter), as in the latest revision of IEC 62271-100;
- differentiation has been introduced between requirements expressed for fulfilling the function expected from a switch-fuse combination, from requirements only relevant when the function is performed by a stand-alone device. The goal is to avoid duplication or conflicts of requirements with a standard dealing with assemblies, when the function is implemented within such an assembly.
- breaking, at the rated voltage, any current up to and including the rated short-circuit breaking current;
- making, at the rated voltage, circuits to which the rated short-circuit breaking current applies.
This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- the document has been updated to be in alignment with the second edition of IEC 62271-1:2017;
- rated TRV has been removed (TRV is only a test parameter), as in the latest revision of IEC 62271-100;
- differentiation has been introduced between requirements expressed for fulfilling the function expected from a switch-fuse combination, from requirements only relevant when the function is performed by a stand-alone device. The goal is to avoid duplication or conflicts of requirements with a standard dealing with assemblies, when the function is implemented within such an assembly.
Best Sellers From Electrical Sector
YSMO GSO 2530:2023
GSO 2530:2016
Yemeni Technical Regulation
Energy Labelling And Minimum Energy Performance Requirements For Air-Conditioners
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
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 195:1994
Gulf Standard
METHODS OF TEST FOR
ADHESIVE INSULATING TAPES FOR
ELECTRICAL PURPOSES
GSO 31:1984
Gulf Standard
METHODS OF TEST FOR
PVC-INSULATED CABLES AND CORDS
WITH CIRCULAR COPPER CONDUCTORS
GSO 723:1997
Gulf Standard
Methods of test for telephone sets.
GSO 1842:2007
Gulf Standard
METHODS OF TESTING FOR PLUGS AND SOCKET OUTLETS FOR VOLTAGES FROM 127V AND UP TO 250V FOR HOUSEHOLD AND SIMILAR GENERAL USE