におい物質を利用した変電所における電気火災検知の基礎的検討

摘要

In order to detect electrical fire by detection of odor substances released during overheating, we investigated the kinds of volatile substances which are released from the insulator during overheating, and the relationship between the emission from the insulator and the heating temperature. As a result, it was found out that the vola-tiles released from the insulator during overheating is the plasticizers mixed in the substrate, and they are released rapidly at 100°C〜150°C ,lower than the temperature at which the insulator is burn out. In addition, we have confirmed that the volatiles released during overheating can be detected by a gas sensor that can detect low concentration of volatiles.%変電所における電気火災を早期に検知するため，電流値監視ゃサーモラベルの利用など，これまでに様々な対策が講じられてきた。しかし，火災の原因は多様であり，これまでの対策に加え，さらに多角的な見地から対策を検討する必要がある。