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AS 6947-2009
$125.14
Crossing of waterways by electricity infrastructure
Specifies requirements for crossings of navigable waterways by overhead and submarine electricity lines.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Objectives
1.3 Referenced documents
1.4 Definitions
2 Risk assessment
2.1 General
2.2 Planning and liaison
2.3 Factors to be considered
2.3.1 General
2.3.2 Hazards
2.3.3 Risks
2.3.4 Circumstances
2.3.5 Consequences
2.3.6 Treatment options
3 Overhead crossings
3.1 General requirements for overhead crossings
3.2 Design
3.2.1 General
3.2.2 Maximum height of the water
3.2.3 Maximum expected vessel height
3.2.4 Safety envelope
3.2.5 Safety margin
3.2.6 Electrical clearance
3.3 Safety and warning signs
3.3.1 General
3.3.2 Overhead powerline crossing warning signs
3.3.3 Supplementary flooding signs
3.3.4 Crossing awareness signs
3.4 Markers for cables
4 Submarine crossings
4.1 General requirements
4.2 Design
4.3 Safety and warning signs
4.3.1 Introduction
4.3.2 Submarine cable warning signs
4.3.3 Physical protection of submarine services
5 Operation and maintenance
Appendix A
Cited references in this standard
Content history
DR 08058
AS 6947-2009 REC:2019
Please select a variation to view its description.
| Published | 23/03/2009 |
|---|---|
| Pages | 17 |
Please select a variation to view its pdf.
