OS GSO IEC 61643-321:2014

IEC 61643-321:2001
Omani Standard   Current Edition · Approved on 25 December 2014

Components for low-voltage surge protective devices - Part 321: Specifications for avalanche breakdown diode (ABD)

OS GSO IEC 61643-321:2014 Files

OS GSO IEC 61643-321:2014 Scope

This part of IEC 61643 is applicable to avalanche breakdown diodes (ABDs) which represent one type of surge protective device component (hereinafter referred to as SPDC) used in the design and construction of surge protective devices connected to low-voltage power distribution systems, transmission, and signalling networks. Test specifications in this standard are for single ABDs consisting of two terminals. However, multiple ABDs may be assembled within a single package defined as a diode array. Each diode within the array can be tested to this specification. This standard contains a series of test criteria for determining the electrical characteristics of the ABD. From the standard test methods described herein, the performance characteristics and ratings of the ABD can be verified or established for specific packaged designs.

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