SN EN 61663-1 : 1999
Current
The latest, up-to-date edition.
LIGHTNING PROTECTION - TELECOMMUNICATION LINES - PART 1: FIBRE OPTIC INSTALLATIONS
12-01-2013
1 Scope and object
2 Normative references
3 Definitions
4 Reference configuration
5 Construction characteristics of the cable
5.1 General
5.2 Failure current for buried cables
5.3 Failure current for aerial cables
6 Need for protection
7 Protective measures
7.1 General
7.2 Dielectric or metal-free cables
7.3 Choice of cable characteristics for both
buried and aerial installations
7.4 Use of shield wire for buried cables
7.5 Route redundancy
Annex A (normative) Frequency of primary failures, Fp for
buried and aerial cables and for cables
entering a structure exposed to direct
lightning strokes
Annex B (normative) Sheath breakdown current ls for both
buried and aerial cables
Annex C (normative) Shielding factor values
Annex D (normative) Route redundancy for both buried and
aerial cables
Annex E (informative) Damage correction factor Kd
Annex F (informative) Tolerable frequency of primary
failures Fa
Annex G (normative) Tests for surge current resistibility
Annex H (informative) Procedure for determining the failure
current
Annex I (informative) Bibliography
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
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