September 1, 2014
The high voltage testing with DC spark testers of the DST 28A series and the AST H 15A high frequency spark testers extend the application spectrum of the spark tester product range from Zumbach. They meet all requirements to ensure you never lose sight of quality standards 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. Install these devices to 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. Every fault is logged.
Continuing operations after spectacularly short loading time
Once the fault is outside the electrode, the spark tester continues operations after an unbelievably 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.
The benefits at a glance
- Best 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 at pipes, hoses, corrugated pipes and similar products of made of insulating materials
- Regulated, adjustable output voltage up to 28 kV DC (DST 28A)/ 15 kV AC (AST H 15A)
- Full range of electrodes
- Detection of pinholes and bare patches on cables and tubes with diameters of up to 70 mm (DST 28A); up to 30 mm with AST H 15A
- Compact design
- Designed for a wide range of standards, incl. IEC 62230, UL 1581, UL 2556
The full spark tester product range from Zumbach covers test voltages of up to 40 kV for products with diameters of up to 200 mm.
