Test & Measurement


High-voltage cable test system

20 January 2010 Test & Measurement

CAMI Research has introduced a high-voltage module for its CableEye M3U cable test system that permits expanded testing for insulation resistance and dielectric breakdown. After checking for opens, shorts, miswires and resistance limits, the new HVX hipot module will apply a user-selectable voltage from 10 V to 1500 V d.c., or 10 V to 1000 V RMS a.c., to each connection group in the cable.

Current leakage detected during the high-voltage test phase provides a measure of insulation resistance up to 1 G, and any leakage current exceeding a preset limit reveals the presence of moisture, flux or other contamination on exposed contacts.

This new high-voltage test capability allows users to meet the industry-standard A620 guidelines for cable and wire harness testing. The system also produces archival-quality reports for each cable tested, showing the test voltage, leakage current and insulation resistance for each wire group, and clearly denotes PASS or FAIL at the top of the report.

The system employs numerous measures to ensure operator safety. Each login name must have system administrator authorisation to enable the high-voltage function. Once logged in, the operator must confirm awareness of the presence of high voltage by pressing a hardware enable button for that test session. During testing, a bright red light bar turns on when high voltage is present. If desired, remote test and stop switches are available. Finally, test current that exceeds the maximum 1,5 mA causes an automatic halt of that test and cessation of voltage.

The CableEye HVX System consisting of an M3U tester and the HVX module is available for 128 test points and can be expanded to 512 test points with optional expansion units. The system includes software with scripting, one-year warranty, one year of free software upgrades, and one year of free tech support.

For more information contact Barry Culligan, Otto Marketing, +27 (0)11 791 1033, contact@otto.co.za, www.otto.co.za



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