BS EN 61663-1:2000
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Lightning protection. Telecommunication lines Fibre optic installations
Hardcopy , PDF
20-04-2012
English
15-06-2000
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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
Concerned with the lightning protection of telecommunication lines in fibre optic installations. Limits the number of possible primary failures that occur in the optical fibre cable in a specific installation to within values not exceeding the limit value, defined as the tolerable frequency of primary failures.
| Committee |
GEL/81
|
| DevelopmentNote |
Supersedes 95/202510 DC. Also numbered as IEC 61663-1. (09/2005)
|
| DocumentType |
Standard
|
| Pages |
40
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
Objective is to limit the number of possible primary failures occurring in the optical fibre cable in a specified installation to within values which are lower than or equal to the limit value, defined as the tolerable frequency of primary failures. Gives the method for calculating the possible number of primary failures, choosing the feasible protective measures and indicating the tolerable frequency of primary failures. Secondary failures are not considered. The tests described in annex G are convenient only for the risk evaluation associated with lightning in fibre optic installations. Tests for the qualification of a cable design are outside the scope of this standard.
| Standards | Relationship |
| NF EN 61663-1 : 2000 | Identical |
| SN EN 61663-1 : 1999 | Identical |
| NBN EN 61663-1 : 2000 | Identical |
| DIN EN 61663-1 : 2000 | Identical |
| EN 61663-1 : 1999 | Identical |
| I.S. EN 61663-1:2000 | Identical |
| UNE-EN 61663-1:2001 | Identical |
| IEC 61024-1-1:1993 | Protection of structures against lightning - Part 1: General principles - Section 1: Guide A: Selection of protection levels for lightning protection systems |
| IEC 61024-1:1990 | Protection of structures against lightning - Part 1: General principles |
| IEC 61312-1:1995 | Protection against lightning electromagnetic impulse - Part 1: General principles |
| ENV 61024-1 : DRAFT 1995 | PROTECTION OF STRUCTURES AGAINST LIGHTNING - GENERAL PRINCIPLES |
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