EuroWire January 2015

News Technology

New generation of spark testers

Benefits at a glance include:

high voltage testing with DC spark testers of the DST 28A series and the AST H 15A high frequency spark testers extend the spark tester product range from Zumbach.

These new testers meet all the requirements to ensure quality standards are maintained during the extruding or rewinding process. The spark testers instantly and reliably detect defects and faults on the sheathing and insulation of electrical cables, tubes, corrugated tubing, hoses and similar products. These devices make sure that defective products with bare patches, hairline cracks or pinholes have no chance of slipping into circulation. As soon as a fault is detected, the system triggers an alarm and every fault is logged. Once the fault is outside the electrode, the spark tester continues operations after a brief loading time and resets the test voltage to the default value. On rewinding devices, the faults are consecutively counted. The test voltage is disconnected on fault detection. An alarm message is sent via the interface, or the potential free alarm contact is activated.

• Suited for highest capacitive loading capabilities • Continuous and faultless detection of defects in insulation or sheathing of electric cables • Detection of defects in the wall thickness of pipes, hoses, corrugated pipes and similar products made of insulating materials • Regulated, adjustable output voltage up to 28kV DC (DST 28A)/ 15kV AC (AST H 15A) • Full range of electrodes • Detection of pinholes and bare patches on cables and tubes with diameters of up to 70mm (DST 28A); up to 30mm with AST H 15A • Compact design • Designed for a wide range of standards, incl IEC 62230, UL 1581 and UL 2556 The full spark tester product range from Zumbach covers test voltages of up to 40kV for products with diameters of up to 200mm. Zumbach Electronic AG – Switzerland Website : www.zumbach.com

▲ ▲ One of the new range from Zumbach

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January 2015