| 摘要 |
PURPOSE:To surely discriminate the kind of an electric fused joint having a small diameter in simple manner by installing lead wires for electric conduction having each covered part set to different length for each kind. CONSTITUTION:An electric heating wire 14 as heating body is embedded in spiral form in the vicinity of the inner surface of a body 12. The lead wires 16 and 18 for electric conduction are connected at both the edge parts of the electric heating wire 14, and pulled out to the outside from the outer surface of the body 12. The lead wires 16 and 18 are covered by the covering parts 20 and 22 having different length for each kind. Accordingly, the kind of the electric fused joint can be discriminated surely in simple ways only by measuring the length of the covered part. |
