Standard
UPDATE AVAILABLE
AS 3891.1-2008
[Superseded]Air navigation — Cables and their supporting structures — Marking and safety requirements, Part 1: Permanent marking of overhead cables and their supporting structures for other than planned low-level flying
Specifies requirements for permanent marking of overhead cables and their supporting structures for visual warning to pilots of aircraft.
Published: 19/03/2008
Pages: 7
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
4 DESIGN AND CONSTRUCTION OF MARKERS
4.1 General
4.2 Colours
4.3 Measurement of height above ground level
4.4 Measurement of height above water
4.5 Spherical markers
4.6 Warning lights
4.6.1 General
4.6.2 High intensity obstacle lights
4.7 Marker panels
4.8 Colourfastness
5 CABLES REQUIRING MARKERS
5.1 Cable height in excess of 90 metres
5.2 Cable height in excess of 150 metres, or spans exceeding 1500 metres
5.2.1 General
5.2.2 Cable height in excess of 150 metres
5.2.3 Cable height in excess of 90 metres and cable length exceeding 1500 metres
5.2.4 Power supply to obstacle lights
5.3 Structures supporting long spans
5.4 Cables in proximity to licensed or Government aerodromes
5.5 Cables in proximity to authorized landing and alighting areas defined in Clause 3.2
5.6 Remote areas
5.7 Parallel cables
5.8 Situations not covered by this Standard
Cited references in this standard
[Current]
Methods of test for textiles, Method 4.B01: Colourfastness tests — Determination of colourfastness to daylight of textile materials
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