Energized Transmission Insulator Tester, (44kV – 500kV): Mounted on a 1.25″-diameter Epoxiglas® pole with a universal fitting, before each use the tester should be attached to the proper length hot stick for the system voltage involved. The scale reads up to 16 kV. Applications Without interrupting service, one of these testers quickly can check the condition of each insulator in a string. This greatly reduces maintenance costs. Rather than changing out entire strings, only the insulators identified as damaged require replacements. The testers serve specific applications for suspension insulators on 44 kV through 500 kV transmission systems.
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