AS 3891.1-2008

Table of Contents

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<pageno>1</pageno>
<text>AS 3891.1-2008 AIR NAVIGATION-CABLES AND THEIR SUPPORTING STRUCTURES-MARKING AND SAFETY REQUIREMENTS - PERMANENT MARKING...</text>
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<pageno>4</pageno>
<text>PREFACE</text>
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<pageno>5</pageno>
<text>CONTENTS</text>
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<pageno>6</pageno>
<text>1 SCOPE</text>
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<pageno>6</pageno>
<text>2 REFERENCED DOCUMENTS</text>
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<bookmark index='5'>
<pageno>6</pageno>
<text>3 DEFINITIONS</text>
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<pageno>6</pageno>
<text>3.1 Aircraft warning marker</text>
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<pageno>6</pageno>
<text>3.2 Authorized landing areas, authorized alighting areas</text>
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<pageno>7</pageno>
<text>3.3 Cable height</text>
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<pageno>7</pageno>
<text>4 DESIGN AND CONSTRUCTION OF MARKERS</text>
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<pageno>7</pageno>
<text>4.1 General</text>
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<pageno>7</pageno>
<text>4.2 Colours</text>
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<bookmark index='12'>
<pageno>7</pageno>
<text>4.3 Measurement of height above ground level</text>
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<pageno>8</pageno>
<text>4.4 Measurement of height above water</text>
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<pageno>8</pageno>
<text>4.5 Spherical markers</text>
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<pageno>8</pageno>
<text>4.6 Warning lights</text>
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<pageno>8</pageno>
<text>4.6.1 General</text>
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<pageno>8</pageno>
<text>4.6.2 High intensity obstacle lights</text>
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<pageno>8</pageno>
<text>4.7 Marker panels</text>
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<pageno>8</pageno>
<text>4.8 Colourfastness</text>
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<pageno>9</pageno>
<text>5 CABLES REQUIRING MARKERS</text>
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<pageno>9</pageno>
<text>5.1 Cable height in excess of 90 metres</text>
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<pageno>10</pageno>
<text>5.2 Cable height in excess of 150 metres, or spans exceeding 1500 metres</text>
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<pageno>10</pageno>
<text>5.2.1 General</text>
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<pageno>10</pageno>
<text>5.2.2 Cable height in excess of 150 metres</text>
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<pageno>11</pageno>
<text>5.2.3 Cable height in excess of 90 metres and cable length exceeding 1500 metres</text>
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<pageno>11</pageno>
<text>5.2.4 Power supply to obstacle lights</text>
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<pageno>11</pageno>
<text>5.3 Structures supporting long spans</text>
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<pageno>11</pageno>
<text>5.4 Cables in proximity to licensed or Government aerodromes</text>
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<pageno>11</pageno>
<text>5.5 Cables in proximity to authorized landing and alighting areas defined in Clause 3.2</text>
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<pageno>12</pageno>
<text>5.6 Remote areas</text>
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<pageno>12</pageno>
<text>5.7 Parallel cables</text>
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<pageno>12</pageno>
<text>5.8 Situations not covered by this Standard</text>
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Abstract

Specifies requirements for permanent marking of overhead cables and their supporting structures for visual warning to pilots of aircraft.

Scope

This Standard specifies requirements for aircraft warning markers for use on overhead cables and their supporting structures. This Standard is not intended for the marking of overhead cables for visual warnings to pilots of aircraft involved in intentional and legal low-level operations. The relevant marking requirements for those operations can be found in Part 2 of this Standard.
This Standard does not prevent the marking of cables not specified in this Standard, considered by their owner to require marking, provided that the markings are consistent with the colours and devices detailed in this Standard.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn.
Pages
ISBN
Committee	EL-010
Supersedes	DR 07094 AS 3891.1-1991