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IEC 60269-2 Document Information:
Title
Low-voltage fuses – Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) – Examples of standardized systems of fuses A to I
Fusibles basse tension – Partie 2: Exigences supplémentaires pour les fusibles destinés à être utilisés par des personnes habilitées (fusibles pour usages essentiellement industriels) – Exemples de systèmes de fusibles normalisés A à I
International Electrotechnical Commission
Publication Date:
Nov 1, 2006
Scope:
Fuses for use by authorized persons are generally designed to be used in installations where the fuse-links are accessible to, and may be replaced by, authorized persons only.
Fuses for use by authorized persons according to the following fuse systems also comply with the requirements of the subclauses of IEC 60269-1, unless otherwise defined in this standard.
This standard is divided into fuse systems, each dealing with a specific example of standardized fuses for use by authorized persons:
Fuse system A: Fuses with fuse-links with blade contacts (NH fuse system)
Remark: previously this system was described in Section I of IEC 60269-2-1
Fuse system B: Fuses with striker fuse-links with blade contacts (NH fuse system)
Remark: previously this system was described in Section IA of IEC 60269-2-1
Fuse system C: Fuse-rails (NH fuse system)
Remark: previously this system was described in Section IB of IEC 60269-2-1
Fuse system D: Fuse-bases for busbar mounting (NH fuse system)
Remark: previously this system was described in Section IC of IEC 60269-2-1
Fuse system E: Fuses with fuse-links for bolted connections (BS bolted fuse system)
Remark: previously this system was described in Section II of IEC 60269-2-1
Fuse system F: Fuses with fuse-links having cylindrical contact caps (NF cylindrical fuse system)
Remark: previously this system was described in Section III of IEC 60269-2-1
Fuse system G: Fuses with fuse-links with offset blade contacts (BS clip-in fuse system)
Remark: previously this system was described in Section IV of IEC 60269-2-1
Fuse system H: Fuses with fuse-links having "gD" and "gN" characteristic (Class J and class L time delay and non time delay fuse types)
Remark: previously this system was described in Section V of IEC 60269-2-1
Fuse system I: gU fuse-links with wedge tightening contacts
Remark: previously this system was described in Section VI of IEC 60269-2-1
NOTE The following fuse systems are standardized systems in respect to their safety aspects. The National Committees may select from the examples of standardized fuses one or more systems for their own standards.
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