Event under the auspices of the Ministry of Economy of Slovak Republic

Natural ionizing radiation absorbed by ceramic insulators

*Rafal Sobota
Czestochowa University of Technology

     Last modified: 2017-03-29

The paper presents dosimetric properties and results of measurements of electrical porcelain C120 and C130, of which power insulators are produced. The properties of the protective enamel of such insulators are also discussed. Some insulators under scrutiny have been used in medium-voltage networks for over fifty years, which resulted in a significantly long period of exposure to natural radiation.
TL measurements conducted in the present study were aimed to determine the amount of natural radiation absorbed by porcelain insulators during their exploitation in power networks as well as to derive a formula for determining the production year for an insulator.
It can be definitely stated that electrical porcelain used for manufacturing power insulators is a very weak detectors due to its chemical composition and is therefore unsuitable as a material that could be used in ionizing radiation dosimetry.


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