| 摘要 |
<p>PURPOSE:To prevent flashover between arcing horns in an insulating apparatus even if thunder directly hits in the near periphery of an insulating apparatus. CONSTITUTION:A pair of insulating apparatuses 4, 4 to support an electricity transmission cable 3 are provided while the apparatuses are set among an zinc oxide-type lightning arrester 6, a steel tower 1, and the electricity transnmission cable 3. The pair of the insulating apparatuses 4, 4 has a first arcing horn 4B in the steel tower side end of an insulator 4A and a second arcing horn 4C in the electricity transmission cable side end of the insulator 4A, respectively, and the first arcing horn 4B and the second arcing horn 4C are respectively extended toward the inside in the longitudinal direction of the insulator 4A and keep a prescribed gap between both extended ends. A capacitor 7 is put in parallel to each of the arcking horns 4B, 4C and the lightning arrester 6.</p> |
