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IT-4 Insulator Tester in Use

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Insulator Tester

The Hi-Test® IT-4 Insulator Tester detects non-visible insulator failures before they cause operations difficulties or safety threats to line crews. The Insulator Tester can be used as a routine maintenance tool to test insulators quickly, safely and reliably. It can be applied to any in-service transmission or distribution insulator and at any voltage, provided there are two or more insulators between conductor and ground. It can also be used to test de-energized insulators prior to installation.


Insulator Tester Features

  • Universal spline for attachment to a hotstick
  • Built-in gigohmmeter applies a current limited 10kVDC potential across an insulator
  • Buzzer provides audible warning of bad insulators
  • LED scale displays the condition of the insulator being tested
  • Powered by a lithium-ion rechargeable battery
  • Rugged carrying case included
  • Lightweight - weighs approximately 3 lbs. (1.35 kg)

HD Electric Company is committed to ongoing review and improvement of its product lines, and thus reserves the right to modify product design and specifications without notice.