著者

木下 勝博

出版者

日本法科学技術学会

雑誌

日本鑑識科学技術学会誌 (ISSN:13428713)

巻号頁・発行日

vol.6, no.2, pp.65-83, 2002 (Released:2009-10-14)

参考文献数

101

被引用文献数

1 1

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Tracking phenomenon, to put it plainly, is the phenomenon to form the carbonized electrical track and lose insulation in the part with potential difference on the surface of insulating materials. Tracking resistance means the difficulty occuring the tracking phenomenon of the organic insulation materials. Studies on the tracking phenomenon and the method of evaluating tracking resistance has been often reported on so far. But, there are only a few comprehensive researches and commentaries which include tracking phenomenon and the fire which occurs by the tracking phenomenon. Hence, I decided to explain tracking phenomenon of the organic insulating materials and the phenomenon that developed concerning the fire which develops and is called, tracking fire. Tracking phenomenon is discussed first. Next, cases of tracking fire in electric wiring and the wiring utensil and the studies on the cause of tracking fire are explained. Furthermore, prevention of tracking fire and future problems are also discussed.

著者

萩本安昭木下勝博萩原隆一 三橋 信男 椎木 淳一 杉本 良一

出版者

安全工学会

雑誌

安全工学 (ISSN:05704480)

巻号頁・発行日

vol.20, no.3, pp.127-132, 1981-06-15 (Released:2018-02-28)

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一般家庭用電気器具の電源スィッチを用いて,これをON,OFFする際に接点間で発生する需気火花による可燃性混合気への着火実験を行なった.実験用スイッチとしてはキーソケットスイッチ,中間スイッチおよび埋込スィッチを使用し,負荷用の電気器具としては白熱電球,換気扇,螢光灯および抵抗器を使用した.また可燃性ガスとしてはメタンおよびプロパンを使用した.その結果,1)キーソケットスイッチのOFF時が最も着火しやすい,2)スイッチON時よりもOFF時の方が着火しやすい 3)誘導性負荷である電気器具のスイッチをOFFした場合の方が,抵抗負荷の場合よりも小さなエネルギーで着火する 4)着火に必要なエネルギーはスイッチの種類や回路条件などによって左右され,数mJで着火する場合もあれば,数Jでも着火しない場合もあることなどがわかった.

著者

木下 勝博

出版者

日本法科学技術学会

雑誌

日本鑑識科学技術学会誌 (ISSN:13428713)

巻号頁・発行日

vol.6, no.2, pp.65-83, 2002

被引用文献数

1

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&nbsp;&nbsp;Tracking phenomenon, to put it plainly, is the phenomenon to form the carbonized electrical track and lose insulation in the part with potential difference on the surface of insulating materials. Tracking resistance means the difficulty occuring the tracking phenomenon of the organic insulation materials. Studies on the tracking phenomenon and the method of evaluating tracking resistance has been often reported on so far. But, there are only a few comprehensive researches and commentaries which include tracking phenomenon and the fire which occurs by the tracking phenomenon. Hence, I decided to explain tracking phenomenon of the organic insulating materials and the phenomenon that developed concerning the fire which develops and is called, tracking fire. Tracking phenomenon is discussed first. Next, cases of tracking fire in electric wiring and the wiring utensil and the studies on the cause of tracking fire are explained. Furthermore, prevention of tracking fire and future problems are also discussed.<br>