Code of practice for maintenance of low-voltage switchgear and controlgear

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-11-2014

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Safety
5 Preventive maintenance
6 Corrective maintenance
7 Post-fault maintenance
8 Fitness for purpose assessment and
Corrective actions
9 Device substitution
Annexes
Annex A (normative) - Equipment no longer commonly
used but which might be present in old installations
Annex B (informative) - Diagnostic aids
Bibliography

Provides recommendations and guidance for the maintenance of low-voltage switchgear and controlgear having a rated voltage upto and including 1000 V a c or 1500 V d c.

This British Standard gives recommendations and guidance for the maintenance of low-voltage switchgear and controlgear having a rated voltage up to and including 1000V a.c. or 1500V d.c.

This standard is applicable to stationary and movable switchgear and controlgear with or without an enclosure. It is also applicable to switchgear and controlgear for use under special service conditions, possibly with additional recommendations, for example in ships and rail vehicles.

This standard also gives recommendations on safety precautions for personnel carrying out maintenance. Guidance on the levels ofmaintenance necessary for and also procedures for the maintenance of the principal components within equipment is included. Guidance is also given on the assessment of the on-going suitability of equipment.

It also gives recommendations on the direct replacement of parts and, where this is not possible, guidance on device substitution.

This standard is not applicable to switchgear and controlgear used in potentially explosive atmospheres.

NOTE Inspection and maintenance of electrical apparatus in explosive gas atmospheres is covered in BSEN60079‑17.

Committee	PEL/121/2
DevelopmentNote	Supersedes BS 6423(1983) & 14/30275063 DC. (11/2014)
DocumentType	Standard
Pages	44
PublisherName	British Standards Institution
Status	Current

BS 6423:1983	Code of practice for maintenance of electrical switchgear and controlgear for voltages up to and including 1 kV
BS EN 60204-32:2008	Safety of machinery. Electrical equipment of machines Requirements for hoisting machines
BS EN 60422:2013	Mineral insulating oils in electrical equipment. Supervision and maintenance guidance
BS EN 50110-2:2010	Operation of electrical installations National annexes
BS EN 60204-1 : 2006	SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 1: GENERAL REQUIREMENTS
IEC 60050-441:1984	International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
BS EN 61439-1:2011	Low-voltage switchgear and controlgear assemblies General rules
BS EN 61439-4:2013	Low-voltage switchgear and controlgear assemblies Particular requirements for assemblies for construction sites (ACS)
BS 7671(2008) : 2008	REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS
BS EN 61439-6:2012	Low-voltage switchgear and controlgear assemblies Busbar trunking systems (busways)
BS EN ISO/IEC 17025:2005	General requirements for the competence of testing and calibration laboratories
BS EN 60947-2:2017	Low-voltage switchgear and controlgear Circuit-breakers
BS EN 60947-1 : 2007	LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: GENERAL RULES
BS EN 60947-4-1 : 2010	LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-1: CONTACTORS AND MOTOR-STARTERS - ELECTROMECHANICAL CONTACTORS AND MOTOR-STARTERS
BS EN 61439-5:2015	Low-voltage switchgear and controlgear assemblies Assemblies for power distribution in public networks
BS EN 61439-2:2011	Low-voltage switchgear and controlgear assemblies Power switchgear and controlgear assemblies
BS EN 50110-1:2013	Operation of electrical installations General requirements

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BS 6423:2014

Code of practice for maintenance of low-voltage switchgear and controlgear

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory