JPS6144714U - Lightning resistant tension insulator - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案を具体化した一実施例の耐雷耐張碍子の
縦断面図、第２図は同じく耐雷耐張碍子を組込んだ耐雷
耐張装置を示す正面図、第３図は密閉栓付近のみの拡大
断面図、第４図は本考案を具体化した別例を示す部分断
面図である。 １２・・・碍子本体、１２ａ・・・笠、１２ｂ・・・頭
部、１２ｃ・・・貫通孔、１２ｄ・・・開口部、１３・
・・充填物、１４・・・キャップ金具、１４ａ，１６ｃ
・・・放電端、１６・・・接地側電極、１８・・・耐張
絶縁棒、１９・・・課電側電極、２０・・・限流素子、
２１，２２・・・電極板、２３・・・弾性絶縁材、２３
ａ・・・ひだ、２３ｂ・・・遮蔽体、２４・・・遮蔽絶
縁板、Ｕ・・・限流要素ユニット、Ｇ１・・・放電間隙
、Ｇ２・・・放圧間隙。Fig. 1 is a longitudinal cross-sectional view of a lightning-resistant tension insulator according to an embodiment of the present invention, Fig. 2 is a front view showing a lightning-resistant tension device incorporating the lightning-resistant tension insulator, and Fig. 3 is a sealed structure. FIG. 4 is an enlarged sectional view of only the vicinity of the stopper, and a partial sectional view showing another embodiment of the present invention. 12... Insulator body, 12a... Shade, 12b... Head, 12c... Through hole, 12d... Opening, 13...
...Filling material, 14...Cap fitting, 14a, 16c
...Discharge end, 16...Grounding side electrode, 18...Tension-resistant insulating rod, 19...Electrifying side electrode, 20...Current limiting element,
21, 22... Electrode plate, 23... Elastic insulating material, 23
a... Pleat, 23b... Shielding body, 24... Shielding insulating plate, U... Current limiting element unit, G1... Discharge gap, G2... Pressure relief gap.

Claims (1)

【実用新案登録請求の範囲】 １ 碍子本体１２の頭部１２ｂを有蓋筒状に形成して、
該頭部１２ｂの外周にはキャップ金具１４を被冠し、さ
らに内腔部には耐張構造を有する限流要素ユニットＵの
接地側電極１６を嵌入して、それらを充填物１３をもっ
て固着するとともに、前記頭部１２ｂの頂面に形成した
貫通孔１２ｃを介して前記キャップ金具１４の内頂面に
設けた放電端１４ａと前記接地側電極１６の放電端１６
ｃとを所定の放電間隔Ｇ１をもって対向させ、また前記
碍子本体１２の頭部１２ｂに連設形成した笠１２ａの開
口部１２ｄ内周面と限流要素ユニットＵの外周面との間
には一方に開放した放圧間隙Ｇ２を設けたことを特徴と
する耐雷耐張碍子。 ２ 限流要素ユニットＵは、碍子本体１２の笠１２ａの
開口部１２ｄを遮蔽する遮蔽絶縁板２４を設けた実用新
案登録請求の範囲第１項に記載の耐雷耐張碍子。 ３ 前記限流要素ユニットＵは耐張絶縁棒１８と、その
両端に螺合された接地側及び課電側電極１６，１９と、
両電極１６．１９の間に挾着された限流素子２０とを、
弾性絶縁材２３をもって被覆してなるものにおいて、碍
子本体１２の笠１２ａの開口部１２ｄを遮蔽する遮蔽体
２３ｂを前記弾性絶縁材２３によって一体に形成した実
用新案登録請求の範囲第１項に記載の耐雷耐張碍子。[Claims for Utility Model Registration] 1. The head 12b of the insulator body 12 is formed into a closed cylinder shape,
The outer periphery of the head 12b is covered with a cap fitting 14, and the ground side electrode 16 of the current limiting element unit U having a tension-resistant structure is fitted into the inner cavity, and these are fixed with a filler 13. At the same time, a discharge end 14a provided on the inner top surface of the cap fitting 14 and a discharge end 16 of the ground side electrode 16 are connected to each other through a through hole 12c formed on the top surface of the head 12b.
c are opposed to each other with a predetermined discharge interval G1, and there is one side between the inner circumferential surface of the opening 12d of the shade 12a formed in series with the head 12b of the insulator body 12 and the outer circumferential surface of the current limiting element unit U. A lightning-resistant tension insulator characterized by having a pressure relief gap G2 open to the inside. 2. The current-limiting element unit U is a lightning-resistant tension insulator according to claim 1, which is a utility model registration, in which the current-limiting element unit U is provided with a shielding insulating plate 24 that shields the opening 12d of the shade 12a of the insulator body 12. 3. The current-limiting element unit U includes a tension-resistant insulating rod 18, and ground side and energized side electrodes 16 and 19 screwed to both ends of the rod.
A current limiting element 20 clamped between both electrodes 16 and 19,
In a product coated with an elastic insulating material 23, a shielding body 23b that covers the opening 12d of the shade 12a of the insulator body 12 is integrally formed with the elastic insulating material 23, as described in claim 1 of the utility model registration claim. lightning-resistant tension insulator.