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