WIRE BREAKING DETECTOR

摘要

PROBLEM TO BE SOLVED: To easily detect the break of electric wires. SOLUTION: A plurality of magnetic field measuring means 9 are arranged surrounding an electric wire and making the magnetic field measuring surface 16 face the cross section center G side of the electric wire. When the wire is broken, the change of magnetic field around the electric wire caused by the break of wire is measured with the magnetic field measuring means 9 to detect a breaking of wire.