BS EN 62271-109 : 2009

1 General
2 Normal and special service conditions
3 Terms and definitions
4 Ratings
5 Design and construction
6 Type tests
7 Routine tests
8 Guide to the selection of by-pass switches for service
9 Information to be given with enquiries, tenders and
   orders
10 Rules for transport, storage, installation, operation
   and maintenance
11 Safety
12 Influence of the product on environment
Annex A (normative) - Tolerances on test quantities during
        type tests
Annex B (normative) - Records and reports of type tests
Annex C (informative) - List of symbols and abbreviations
        Used
Annex D (informative) - Examples of by-pass switch ratings
Annex E (informative) - By-pass switches used as the primary
        by-passing devices
Annex F (informative) - Explanatory note regarding transient
        recovery voltage during reinsertion
Annex G (normative) - Use of mechanical characteristics and
        related requirements
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications
Annex ZB (informative) - A-deviations

Pertains to a.c. series capacitor by-pass switches designed for outdoor installation and for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV.