| Title |
A study of the Forest Fire Influence on the Insulator Characteristics for T/L |
| Authors |
In-Hyuk Cho ; Jang-Hyun Choi ; Dong-Il Lee ; Yong-Woon Chung ; Kun-Yang Yu |
| Keywords |
Forest fire ; Transmission lines ; Polymer insulator ; Artificial fire test |
| Abstract |
In order to understand the effect of the mountain fire on the polymeric insulator for transmission lines, the author observed the deformation of the sheds of the polymeric insulators and the change of the discs of the porcelain insulators under fire, and investigated the electrical and mechanical characteristics of the insulators after the ignition test. As the result, the following conclusions were obtained. First, the porcelain insulator was degraded in electrical characteristics when the insulator was subjected to the fire for approximately 5 minutes; whereas, the polymeric insulator was not degraded though there were some damage on its sheds. Second, after 20 minutes exposure to the fire, the polymeric insulator lost a lot of parts of sheds, but the electrical characteristics was lowered by around 20[%], but the porcelain insulators were electrically degraded by more than 80[%]. |