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Jim Olson and Craig Ries


Jim Olson and Craig Ries

About the Authors: Jim Olson and Craig Ries are product safety engineers for Terex Utilities (www.terex.com/utilities).

Qualification testing can only be done with an AC testing machine. The test is conducted by qualified service personnel anytime the fiberglass boom section is modified or replaced. A written record of all dielectric tests should be maintained, including both the date and the signature of the person who performed the test.

Dielectric Testing for Insulating Aerial Devices

Insulating aerial devices and digger derricks are used to provide a level of protection to their operators and ground personnel who work around energized power lines. Following established safe work procedures is critical, as is testing and maintaining the equipment so that it continues to provide the insulation users expect. You cannot simply look at […]