Insulator Tester

Test dielectric strength of porcelain insulators, using testing apparatus.
picture of Insulator Tester

Quick Stats


Salary Range
$20,000 – $56,000

Data from U.S. Department of Labor


What do Insulator Testers do?

Tests dielectric strength of porcelain insulators, using testing apparatus: Fastens one hooked end of insulator to metal rod of testing set and connects other hook to grounded wire. Turns dial on test set to specified voltage. Presses button to produce voltage and observes meters on test set to verify dielectric strength of insulator. Discards defective insulators.


Should I be an Insulator Tester?

You should have a high school degree or higher and share these traits:
  • Independent: You enjoy flying solo and doing things your own way.
  • Reliable: You can always be counted on to do a good job.
  • Team Player: You're able to listen, communicate, and work with tons of different people.

  • Also known as: Inductor Tester, Inner-Tube Tester

    How to become an Insulator Tester

    Most Insulator Testers have no higher education and get on-the-job training. Think about earning a Certificate or Associate's degree to increase your competitiveness in the field. Chart?chd=s:9zcaaa&chl=no+college+%2869%25%29|certificate+%2828%25%29|associate%27s+%283%25%29|||&cht=p3&chs=466x180&chxr=0,69,69
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