Problems of Automatic Test of Insulation in Cable Production

Detection of insulation defects in the wire through measuring changes in its capacitance

“…In contrast to spark testing [2,29], the method employed by the device has an indisputable advantage. Testing can be performed at AC voltage of 3.5 V which is much safer than high voltage used in spark testing [30].…”

“…The cable product quality determines the quality of electric power and information signal transmission [1]. The considered single-core electric wire is a part of the cable product; therefore, the wire quality affects the finished product quality [1][2][3]. One of the main normalized values is the wire capacitance per unit length [4,5].…”

Diameter Calculation in Contactless Three-Axis Measuring Devices

“…The rejects can be minimized through the improved technology to control the product major characteristics, namely capacitance per unit length [1,2], eccentricity [3], outer diameter [4], insulation integrity [5] and others parameters [6][7][8][9][10][11][12][13].…”