Table of Contents

SECTION 1: GENERAL<br>1 Scope<br>2 Normative references<br>3 Definitions<br>&nbsp;&nbsp;&nbsp;&nbsp;3.1 Insulator string<br>&nbsp;&nbsp;&nbsp;&nbsp;3.2 Insulator set<br>&nbsp;&nbsp;&nbsp;&nbsp;3.3 Flash-over<br>&nbsp;&nbsp;&nbsp;&nbsp;3.4 Dry lightning impulse withstand voltage<br>&nbsp;&nbsp;&nbsp;&nbsp;3.5 50% dry lightning impulse flash-over voltage<br>&nbsp;&nbsp;&nbsp;&nbsp;3.6 Wet power-frequency withstand voltage<br>&nbsp;&nbsp;&nbsp;&nbsp;3.7 Wet power-frequency flash-over voltage<br>&nbsp;&nbsp;&nbsp;&nbsp;3.8 Wet switching impulse withstand voltage<br>&nbsp;&nbsp;&nbsp;&nbsp;3.9 50% Wet switching impulse flash-over voltage<br>4 Electrical values which characterize an insulator or<br>&nbsp;&nbsp;&nbsp;&nbsp;an insulator set<br>SECTION 2: TEST PROCEDURES FOR ELECTRICAL TESTS<br>5 General requirements for high voltage tests<br>6 Standard atmosphere conditions and correction factors<br>&nbsp;&nbsp;&nbsp;&nbsp;for electrical tests<br>&nbsp;&nbsp;&nbsp;&nbsp;6.1 Standard reference atmosphere<br>&nbsp;&nbsp;&nbsp;&nbsp;6.2 Correction factors for atmosphere conditions<br>7 Artificial rain parameters for wet tests<br>8 Mounting arrangements for electrical tests<br>9 Lightning impulse voltage tests<br>10 Wet power-frequency voltage tests<br>11 Wet switching impulse voltage tests<br>12 Methods of mounting<br>&nbsp;&nbsp;&nbsp;&nbsp;12.1 Standard mounting arrangement of an insulator<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;string or insulator set when switching impulse<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tests are not required<br>&nbsp;&nbsp;&nbsp;&nbsp;12.2 Standard mounting arrangement of an insulator <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;string or insulator set when switching impulse<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tests are required<br>&nbsp;&nbsp;&nbsp;&nbsp;12.3 Mounting arrangement reproducing service <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;conditions<br>Annex A (informative) List of normative documents given<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for information<br>Annex ZA (normative) Other international publications<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;quoted in this standard with the references of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the relevant European publications

Abstract

Applicable to insulator strings and insulator sets comprising string insulator units of ceramic material or glass for use on a.c. overhead power lines with a nominal voltage greater than 1000 V and a frequency not greater than 100 Hz.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	SC 36B