GSO IEC 61643-21:2014
IEC 61643-21:2000
Gulf Standard
Current Edition
·
Approved on
25 December 2014
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
GSO IEC 61643-21:2014 Files
No files are available for this standard right now!
GSO IEC 61643-21:2014 Scope
This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages.
The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.
Best Sellers From Electrical Sector
GSO 2530:2016
Gulf Standard
Energy Labelling And Minimum Energy Performance Requirements For Air-Conditioners
OS GSO 2530:2016
GSO 2530:2016
Omani Standard
Energy Labelling And Minimum Energy Performance Requirements For Air-Conditioners
OS GSO 34:2007
GSO 34:2007
Omani Standard
LEAD-ACID STARTER BATTERIES USED FOR
MOTOR VEHICLES AND INTERNAL
COMBUSTION ENGINES
GSO 34:2007
Gulf Technical Regulation
LEAD-ACID STARTER BATTERIES USED FOR
MOTOR VEHICLES AND INTERNAL
COMBUSTION ENGINES
Recently Published from Electrical Sector
GSO IEC TS 62915:2024
IEC TS 62915:2023
Gulf Standard
Photovoltaic (PV) modules - Type approval, design and safety qualification - Retesting
GSO IEC 60071-2:2024
IEC 60071-2:2023
Gulf Standard
Insulation co-ordination - Part 2: Application guidelines
GSO IEC 62146-2:2024
IEC 62146-2:2023
Gulf Standard
Capacitors for high‑voltage alternating current circuit‑breakers - Part 2: TRV capacitors
GSO IEC 60115-8:2024
IEC 60115-8:2023
Gulf Standard
Fixed resistors for use in electronic equipment - Part 8: Sectional specification: Fixed surface mount resistors