PB201

PARTIAL BREAK DETECTORS ARE USED TO DETECT PARTIAL BREAKS IN MINING TRAILING CABLE CONDUCTORS. THE CABLE UNDER TEST IS FED THROUGH A SUITABLE CABLE HAMMER, WHICH VIBRATES THE CABLE DURING THE FEEDING OPERATION. CONDUCTOR BREAKS WILL MAKE PARTIAL CONTACT DURING THE VIBRATION CYCLE AND PRODUCE A SIGNAL. THIS SIGNAL IS DETECTED, AMPLIFIED AND CONVERTED INTO AN AUDIBLE SIGNAL, WHICH IS FED TO A HEADPHONE SET, WHERE IT CAN BE CLEARLY HEARD BY THE OPERATOR.

CONDUCTOR BREAKS AS LOW AS 10% CAN EASILY BE DETECTED USING THIS METHOD.