Table of Contents
1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Reference configuration
6 Line performance for direct flashes
6.1 Annual number of damages
6.2 Risk of damage
6.3 Tolerable risk
7 Collection area
7.1 Aerial cable
7.2 Buried cable
7.3 Structure connected to the cable
8 Protection factor
9 Protection factor of cables
9.1 Requirements for cable installation
9.2 Optical fibre cable
9.3 Cables with internal conductors
10 Protective measures applied to the line
10.1 To bury an aerial cable
10.2 Guard-wire on buried cable
10.3 Overhead ground wire on aerial cable
10.4 Installation of SPDs along the line
11 Protective measures applied to the line-structure interface
11.1 Tubular shield
11.2 Shielding by parallel conductors
11.3 Use of SPDs at structure entrance
Annex A – Evaluation of the sheath breakdown current (Is)
Annex B – Evaluation of the test current (It)
Appendix I – Expected loss per damage (L)
Appendix II – Rationale for the protective effect of guard-wires
Bibliography