BS 6867:1987

Foreword
Committees responsible
Code of practice
0 Introduction
Section one. General
1 Scope
2 Definitions
Section two. Safety
3 Responsibility
4 Procedures for safe systems at work
5 Isolation and access for maintenance
6 Preparing for work
7 Fire extinguishing equipment
8 Testing
9 Disposal of scrap
Section three. Common requirements relating to
                maintenance
10 Manufacturer's instructions
11 Newly commissioned equipment
12 Frequency of maintenance
13 Records
14 Replacement parts
15 Cleanliness
16 Marking of covers and connections
17 Quality of connections
18 Maintenance and testing of insulation
19 Maintenance of safety earthing continuity
20 Shutters, locking devices etc.
21 Interlocks
22 Ventilation
23 Equipment heating and lighting
24 Lifting devices
25 Tripping and closing supplies
26 Equipment tools, spares and test instruments
27 Conclusion of maintenance
Section four. Additional requirements relating to the
                maintenance of specific items
28 Circuit-breakers
29 Switches
30 Disconnectors and earthing switches
31 Busbars and busbar chambers
32 Relays
33 Protective, measuring and control transformers
34 Cable boxes and terminations
35 Compressed air plant
36 Ancillary and auxiliary circuits
Appendices
A Typical example of safety rules
B Graphical illustration of some of the terms and
    definitions given in clause 2
C Example of maintenance record card
D General recommendations relating to personal hygiene
    and safety at SF6 installations
E Recommendations for the content of the switchgear
    manufacturer's handbook
Figure
1 Graphical representation of terms and conditions
    given in clause 2

Procedures for principal components and guidance on replacement parts, precautions to secure safety of personnel and to minimise hazards to plant.