BS 6423:1983
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Code of practice for maintenance of electrical switchgear and controlgear for voltages up to and including 1 kV
Hardcopy , PDF
30-11-2014
English
31-10-1983
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Foreword
Committees responsible
Code
Section one. General
0. Introduction
1. Scope
2. Definitions
3. Relevant acts and regulations
Section two. Safety
4. General
5. Responsibility
6. Rules or procedures
7. Emergency exits
8. Fire extinguishing equipment
9. First aid
10. Lighting
11. Instructions, notices and labels
12. Access
13. Isolation before maintenance work
14. Observing and working on live equipment
15. Avoidance of contamination
16. Insulating equipment
17. Earthing equipment
18. Voltage indicators
19. Capacitively stored electrical energy
20. Associated plant
21. Portable electrical tools and lamps
22. Containment of faults
23. Testing
24. Disposal of scrap
Section three. Common recommendations relating to
maintenance
25. Manufacturer's instructions
26. Newly commissioned equipment
27. Frequency of maintenance
28. Records
29. Replacement parts
30. Cleanliness
31. Marking of covers and connections
32. Quality of connections
33. Maintenance of insulation
34. Maintenance of safety earthing continuity
35. Shutters, locking devices, etc.
36. Interlocks
37. Ventilation
38. Equipment heating and lighting
39. Lifting devices
40. Tripping and closing supplies
41. Equipment tools, spares and test instruments
42. Conclusion of maintenance
Section four. Additional recommendations relating to the
maintenance of specific items
43. Busbars and busbar chambers
44. Disconnectors and main circuit switches
45. Circuit breakers
46. Fuses
47. Contactors and contactor relays
48. Overload protective devices
49. Relays
50. Timing devices
51. Protective, measuring and control transformers
52. Instruments including recorders
53. Metallic resistors
54. Capacitors
55. Semiconductors
56. Cable boxes and terminations
57. Control switches including pushbuttons and limit
switches
58. Liquid starters and controllers
59. Manual controllers
60. Sealed switches
61. Motorized items
62. Indicator devices
63. Batteries
Appendices
A. Guidelines on safe isolation procedures for work
on systems operating at voltages up to and
including 1 kV
B. Graphical illustration of some of the terms and
definitions given in clause 2
C. Example of a maintenance record card
D. Examples of information required from the
manufacturer/supplier for maintenance of equipment
Table
1. Maintenance operations for circuit breakers
Precautions to secure safety of personnel whilst maintenance is in progress, guidelines for safe isolation procedures, and specific procedures for principal components of equipment.
| Committee |
PEL/17
|
| DevelopmentNote |
Supersedes BS 5405(1976), BS CP1011(1961) and 79/28033 DC (01/2004) Reviewed and confirmed by BSI, November 2007. (10/2007)
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| Supersedes |
| 13/30174947 DC : 0 | BS 6867 - MAINTENANCE OF ELECTRICAL SWITCHGEAR AND CONTROLGEAR FOR VOLTAGES ABOVE 36 KV - CODE OF PRACTICE |
| BS 6867:1987 | Code of practice for maintenance of electrical switchgear for voltages above 36 kV |
| BS 6739:2009 | Code of practice for instrumentation in process control systems: installation design and practice |
| BS 6423:2014 | Code of practice for maintenance of low-voltage switchgear and controlgear |
| BS 6867:2013 | Maintenance of electrical switchgear and controlgear for voltages above 36 kV. Code of practice |
| PD 5304:2005 | GUIDANCE ON SAFE USE OF MACHINERY |
| BS 6626:2010 | Maintenance of electrical switchgear and controlgear for voltages above 1 kV and up to and including 36 kV. Code of practice |
| BS 6626:1985 | Code of practice for maintenance of electrical switchgear and controlgear for voltages above l kV and up to and including 36 kV |
| EEMUA 178 : 2009 | ELECTRICAL SAFETY OF INSTRUMENTS, INSTRUMENT CONTROL PANELS AND CONTROL SYSTEMS - DESIGN GUIDE |
| 08/30136724 DC : DRAFT MAY 2008 | BS 6739 - CODE OF PRACTICE FOR INSTRUMENTATION IN PROCESS CONTROL SYSTEMS - INSTALLATION DESIGN AND PRACTICE |
| BS 6739:1986 | Code of practice for instrumentation in process control systems: installation design and practice |
| BS 7354:1990 | Code of practice for design of high-voltage open-terminal stations |
| BS 5420:1977 | Specification for degrees of protection of enclosures of switchgear and controlgear for voltages up to and including 1000 V a.c. and 1200 V d.c. |
| BS 4727-2:GRP06(1985) : 1985 | GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - TERMS PARTICULAR TO POWER ENGINEERING - SWITCHGEAR & CONTROLGEAR TERMINOLOGY INCLUDING FUSE TERMINOLOGY |
| 1973/23/EEC : 1973 | COUNCIL DIRECTIVE OF 19 FEBRUARY 1973 ON THE HARMONIZATION OF THE LAWS OF MEMBER STATES RELATING TO ELECTRICAL EQUIPMENT DESIGNED FOR USE WITHIN CERTAIN VOLTAGE LIMITS |
| BS 5304:1988 | Code of practice for safety of machinery |
| BS 2769:1964 | Specification for portable electric motor-operated tools |
| BS CP1003(1948) : LATEST | INSTALLATION & MAINTENANCE OF FLAMEPROOF AND INTRINSICALLY-SAFE ELECTRICAL EQUIPMENT FOR INDUSTRIES OTHER THAN COAL MINING |
| BS 5486-1:1990 | Low-voltage switchgear and controlgear assemblies Requirements for type-tested and partially type-tested assemblies |
| BS CP1013(1965) : LATEST | EARTHING |
| BS 4941-1:1979 | Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c. Direct-on-line (full voltage) a.c. starters |
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