PD IEC TS 61245:2015

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General test requirements
5 Salt fog method
6 Solid layer method
Annex A (informative) - Method for checking the uniformity
        of the layer
Annex B (informative) - Determination of the withstand
        characteristics of insulators
Annex C (informative) - Additional recommendations concerning
        the solid layer method procedures
Annex D (informative) - Information to check equipment for
        artificial pollution tests
Annex E (informative) - Supplementary information on
        artificial pollution tests on insulators for voltage
        systems of [+/-] 600 kV and above (solid layer method
        procedure B)
Annex F (informative) - Further investigation
Bibliography

Pertains to the determination of the d.c. withstand characteristics of ceramic and glass insulators to be used outdoors and exposed to polluted atmospheres, on d.c. systems with the highest voltage of the system greater than [+/-] 1000 V.

This technical specification is applicable for the determination of the d.c. withstand characteristics of ceramic and glass insulators to be used outdoors and exposed to polluted atmospheres, on d.c. systems with the highest voltage of the system greater than ± 1 000 V.

These tests are not applicable to polymeric insulators, to greased insulators or to special types of insulators (e.g. insulators with semiconducting glaze or covered with any organic insulating material).

The object of this technical specification is to prescribe procedures for artificial pollution tests applicable to insulators for overhead lines, substations and traction lines and to bushings.

It may also be applied to hollow insulators with suitable precautions to avoid internal flashover. In applying these procedures to apparatus incorporating hollow insulators, the relevant technical committees should consider their effect on any internal equipment and the special precautions which may be necessary.