| Specifications have demanded that spark tests be performed both on the primary insulation line, as the first measure of insulation quality during production, and at the packaging line, for a final insulation check prior to shipment. However, an increasing number of quality conscious manufacturers are finding that spark testing is a valuable tool to check for insulation defects prior to or after processes such as twinning, bunching and taping, cabling, jacketing and marking. Spark testers employed at carefully chosen points of production insure that product damaged by mishandling or faulty processes will not find its way into expensive cable assemblies. This can drastically reduce the likelihood that defects will be discovered during final hipot testing or worse, by the end user.
Specialising in the manufacture of spark test systems for the insulated wire, cable and allied industries since 1952 and holding numerous patents, Clinton Instrument Co., USA, has remained in the forefront of research and development in this highly specialised area, manufacturing a wide range of standard and specialised test equipment. Over the past 20 years, the company has sold more than 15,000 high-frequency sine wave spark testers to manufacturers of insulated wire and cable. Furthermore, Clinton�s patented 3kHz high-frequency spark tester revolutionised quality control in the industry, providing a clean, reliable, cost-effective in-line method for checking insulation quality.
Clinton Instrument Co has also recently launched its new HF-15A high-frequency spark tester, a compact one-piece unit that will fit almost anywhere on the production line. Designed with digital communications technology, the HF-15A can be part of a fully process-controlled quality system or work as a stand-alone manual spark tester.
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