BS 6626:1985

Code of practice for maintenance of electrical switchgear and controlgear for voltages above 1 kV and up to and including 36 kV

Recommendations for the maintenance of electrical switchgear and controlgear for voltages above 1 kV and up to and including 36 kV.

This British Standard provides recommendations for the maintenance of electrical switchgear and controlgear having rated voltages above 1 kV and up to and including 36 kV.

Special maintenance requirements relating to explosion protected switchgear and controlgear are excluded from this code of practice. Nevertheless this code of practice gives useful information relating to general maintenance aspects of such apparatus.

Recommended procedures for maintenance of the principal components of equipment are included and guidance is also given concerning replacement parts, particular emphasis being placed on the use of the manufacturer’s handbook as the definitive reference for any user’s particular equipment.

Reference is made to the precautions to be observed in order to secure safety of personnel whilst maintenance is in progress. A typical example of safety rules is included in Appendix D. Some comments are also made regarding the safety features of equipment and measures to minimize hazards to plant and to ensure continuity of service. In addition, guidance is given on the subject of electrical testing as the means for detecting insulation weakness or the deteriorating condition of insulation.

This British Standard is a revision of clauses of CP 1011:1961 and BS 5405:1976 which are withdrawn.

It includes the following cross references:

BS 2692, BS 2692-1, BS 4727, BS 4727-2, BS 4727:Group 06, BS 4941, BS 4941-1, BS 5209, BS 5304, BS 5345, BS 5405, BS 5730, BS 5856, BS 5856-1, BS 5907,

BS 6133, BS 6423, CP 1003, CP 1011.