PD IEC/TR 61911:2003

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Understanding the hazard - Basic theory
  4.1 Electric field induction from nearby circuits
  4.2 Magnetic field induction from nearby circuits
  4.3 Electrostatic charging
  4.4 Re-energization
5 Conductor stringing methods and equipment
  5.1 Slack stringing method
  5.2 Tension stringing method
  5.3 Stringing equipment
  5.4 Communications
6 Special earthing requirements
  6.1 Work site earthing systems
  6.2 General procedures and use of earthing systems
7 Testing of equipment
  7.1 Number of type tests
  7.2 Type test set-up
  7.3 Type test acceptance criterion
Annex A (normative) Choosing the size of earths, earth cables and
        bonds

Provides recommendations for the selection and testing, where necessary, of conductor stringing equipment and accessory items used for the installation of bare and insulated overhead distribution conductors.

This Technical Report provides recommendations for the selection and testing, where necessary, of conductor stringing equipment and accessory items used for the installation of bare and insulated overhead distribution conductors. Procedures are recommended for proper earthing in order to protect equipment, components and personnel from currents which can result from accidental contact with nearby energized conductors, or induced voltage from adjacent energized lines, lightning strikes, switching errors or electrostatic charging. The equipment under consideration in this Technical Report is used for distribution voltages, usually considered to be below 50 kV. However, for voltages of 50 kV and above, use of IEC 61328 may be more appropriate. The choice of whether IEC 61328 or this Technical Report applies to the work being considered will usually depend on the physical size of the conductors, the size of the structures and the average span between supports.