These are designed for checking the quality of PVC or rubber or XLPE or teflon coated wires during manufacturing at shop floor. The coated wire is passed through brass ball chains which carry high voltage. Costly raw material, more demanding end users faster production speeds are forcing Wire & Cable manufacturers to pay more attention to insulation of cable. Emphasis on quality control in wire industry has definitely increased in recent years. One of the latest techniques of Spark Testing is “AC HV Spark Testing". The method surrounds the insulated wire with a concentrated corona discharge which can pick up not only faults in the insulation such as pin holes but also marginal tears. The feature of an instrument, a electromechanical counter, keeps track of the "Number of faults" per cable & helps with quality control statistical studies.

These are designed for checking the quality of PVC or rubber or XLPE or teflon coated wires during manufacturing at shop floor. The coated wire is passed through brass ball chains which carry high voltage. Costly raw material, more demanding end users faster production speeds are forcing Wire & Cable manufacturers to pay more attention to insulation of cable. Emphasis on quality control in wire industry has definitely increased in recent years. One of the latest techniques of Spark Testing is “AC HV Spark Testing". The method surrounds the insulated wire with a concentrated corona discharge which can pick up not only faults in the insulation such as pin holes but also marginal tears. The feature of an instrument, a electromechanical counter, keeps track of the "Number of faults" per cable & helps with quality control statistical studies.