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

English 111 Pages

Current Edition Reference Language

Download Preview

Obtaining this standard through the store is currently unavailable. You can acquire it directly from its source.

Continue Shopping

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

Quick View

More Details

OS GSO 2530:2016

GSO 2530:2016

Omani Standard

Energy Labelling And Minimum Energy Performance Requirements For Air-Conditioners

Quick View

More Details

OS GSO 34:2007

GSO 34:2007

Omani Standard

LEAD-ACID STARTER BATTERIES USED FOR MOTOR VEHICLES AND INTERNAL COMBUSTION ENGINES

Quick View

More Details

GSO 34:2007

Gulf Technical Regulation

LEAD-ACID STARTER BATTERIES USED FOR MOTOR VEHICLES AND INTERNAL COMBUSTION ENGINES

Quick View

More Details

View All

Recently Published from Electrical Sector

GSO IEC 61558-2-2:2024

IEC 61558-2-2:2022

Gulf Standard

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-2: Particular requirements and tests for control transformers and power supply units incorporating control transformers