1 Scope
This part of GB/Z 25842, which serves as an application guide for the short-circuit ratings for low-voltage switchgear and controlgear and assemblies, summarizes the definitions of the ratings and provides examples of their application.
Note: This document does not concern itself with household (domestic) installations.
2 Normative References
The following standards contain provisions which, through reference in this part of GB 25842, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
Contents
Foreword
Introduction
1 Scope
2 Normative References
3 Index of Definitions and Characteristics
4 Principle of Application–Installation
5 Characteristics–Low-voltage Assemblies (Switchboard, Distribution Board, etc.)
6 Characteristics–Switching Devices
7 Examples of the Practical Application of the Product Characteristics
Annex A (Informative) Interpolation of the Suitability of an Alternative SCPD for the Protection of Contactors and Starters (substitution)
Bibliography
