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TB 508 2012 B4-44 HVDC Environmental Planning Guidelines

The guideline provides an overview of the environmental issues to be considered in the technical design and environmental approval processes associated with an HVDC system. It provides an overview of the different HVDC systems and their components, with a focus on possible environmental issues. The environmental impacts and possible mitigation measures of the components and sub-components of HVDC schemes are described

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TABLE OF CONTENTS

Glossary

1 INTRODUCTION

      1.1 Purpose

      1.2 Target Audience

      1.3 Scope

      1.4 Project Phases

2 HVDC LINKS OVERVIEW

      2.1 Why use HVDC transmission?

      2.2 Technology and configuration

      2.3 Environmental Impacts

3 CONVERTER STATION 

      3.1 Converter station equipment

      3.2 Environmental issues–converter station

      3.3 Smoothing Reactor

      3.4 DC Filters

      3.5 AC Filters

      3.6 Wall Bushings

      3.7 Converter Transformers

      3.8 Thyristor or IGBT Valves

      3.9 Valve cooling system

      3.10 Construction

      3.11 Operation

      3.12 Decommissioning

4 DC OVERHEAD LINE

      4.1 DC line configurations

      4.2 Electrode Line

      4.3 Environmental issues–overhead lines

      4.4 Consultation

      4.5 Operation

      4.6 Decommissioning

5 CABLE

      5.1 Cable Design and Configurations

      5.2 Environmental Issues–cable

      5.3 Cable Route Selection

      5.4 Land Cables

6 ELECTRODES

      6.1 Introduction

      6.2 Summary of environmental issues and mitigation - electrodes

      6.3 DC electrode systems

      6.4 Planning

      6.5 Construction

      6.6 Monitoring programs

      6.7 Operation

      6.8 Decommissioning

      6.9 Environmental experience with electrodes

BIBLIOGRAPHY