PD IEC/TS 62344:2013

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 System conditions
5 Design of land electrode stations
6 Design of sea electrode station and shore electrode
  station
7 Impact on surrounding facilities and mitigation
  measures
Annex A (informative) - Basic concepts of earth
        electrodes
Annex B (informative) - Soil parameter measurement
        method
Annex C (informative) - Electrode line design
Annex D (informative) - Assessment of measurement
        method
Annex E (informative) - Earth electrode electrical
        parameter calculation method
Annex F (informative) - Thermal time constant
Annex G (informative) - Schematic diagram of online
        monitoring system
Annex H (informative) - Calculation method for corrosion
        of nearby metal structures caused
        by earth electrodes
Annex I (informative) - Calculation method for d.c. current
        flowing through a.c transformer neutral
        near earth electrodes
Annex J (informative) - Chemical aspects
Annex K (informative) - Simple introduction of shore
        electrodes
Bibliography

Gives necessary guidelines, limits, and precautions to be followed during the design of earth electrodes to ensure safety of personnel and earth electrodes and prevent any significant impact they may exert on d.c. power transmission systems and the surrounding environment.

This Technical Specification applies to the design of earth electrode stations for high-voltage direct current (HVDC) links. It is intended to provide necessary guidelines, limits, and precautions to be followed during the design of earth electrodes to ensure safety of personnel and earth electrodes and prevent any significant impact they may exert on d.c. power transmission systems and the surrounding environment.