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BS 7767:1994

Current
Current

The latest, up-to-date edition.

Method for assessing the short-circuit withstand strength of partially type-tested assemblies (PTTA)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-07-1994

Committees responsible
National foreword
Method
Introduction
1 Scope
2 Reference documents
3 Definitions
4 Method of extrapolation
5 Conditions for application
Figures
1 Type-tested busbar structure (TS)
2 Non type-tested busbar structure (NTS)
3 Angular busbar configuration with supports at the
   corners

Method of extrapolation which may be used for partially type-tested assemblies to prove compliance with the requirements of 7.5.1 of IEC 60439-1.

This Technical Report describes an extrapolation method for assessing the short-circuit withstand strength of partially type-tested assemblies (PTTA).

Committee
PEL/121/2
DevelopmentNote
Also numbered as IEC 61117 Supersedes 90/33360 DC (10/2005)
DocumentType
Standard
Pages
10
PublisherName
British Standards Institution
Status
Current

IEC 60865-1:2011 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
IEC TR 60865-2:2015 Short-circuit currents - Calculation of effects - Part 2: Examples of calculation
IEC 60439-1:1999+AMD1:2004 CSV Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies

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