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  • We Value Your Feedback - Help Us Improve

    Half the links in Book 3 Study Guide "A. Switchgear and Switchboard Assemblies ## 1. Properties and Types" no longer work. "## 2. Inspection and Test Procedures" Condensation in Switchgear is deadlink Comparison to IEEE/ANSI standard just takes you Eaton website with no related data

    Posted by Detection23 on 05-25-2025
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    Your dream job might be just a click away! ABM has updated their job listings across the United States as of 5/24/2025. Check out the diverse range of opportunities available for all skill levels.

    Posted by TestGuy on 05-24-2025
  • Acceptable Limits for Low Resistance Testing

    I have used a 100A and 10A units on the same peice of apparatus quite often(just to see the differences) and never see a real difference. Maybe if there were other factors in play the higher current would allow for more accurate reading?

    Posted by Daniel_Nigra on 05-22-2025
  • Primary Injection Test Pins

    Any Idea who would sell the hex test pins?

    Posted by RobCathyM on 05-20-2025
  • Report Tech Quiz Issues Here

    7200/360 = 20 20/1.732 = 11.55 Turns ratio

    Posted by rgreisel on 05-13-2025
  • Report Tech Quiz Issues Here

    A 4160V circuit is equipped with 200/5 CTs, at full scale what should the panel ammeter read if the circuit was operating with a power factor of 0.8%? Should the question provide primary side amps so I can convert to Panel readings using CT ratio?

    Posted by rgreisel on 05-13-2025
  • Which Circuit Breaker Finder Should I Buy? Klein or VDIAGTOOL?

    I have the Klein...it works great. It does what it says it does

    Posted by ElectricalTestTech on 05-13-2025
  • 35 Kv MV cable test Insulation resistance below 100,000Mohms

    The length is roughly 365 feet I didn't have the TDR with me to get an accurate measurement. The engineering group on this project seem to be looking for a gotcha and I think there trying everything they can to hold up the contractor that hired us to test. Ive had 10 meetings explaining results vlf and tan delta differences etc. so this was there last hang u...

    Posted by Joseph_Darragh on 05-13-2025
  • Passed My NETA LEVEL 2 exam, some pointers for anyone studying

    Hey thanks for this! How long have you been a tech? I'm new to the field and have only a few months experience in the field. I've been studying for about 2 days now. Did 3 practice tests and scored 45%, 49% and then a 56%. With a few weeks of solid study do you think a noob like me has a shot at passing?

    Posted by joyevans on 05-12-2025
  • Insulation Resistance Testing Open Circuit Breakers

    When you perform the phase-to-phase tests, are you grounding the phases not under test? What is your preferred order for testing? Perform "closed" tests first, and finish with "open" tests? I always perform an "open" insulation resistance test or hipot test as the very last test on a breaker. The last thing I want to do is very the breaker is actually open ...

    Posted by ElectricalTestTech on 05-12-2025
  • 35 Kv MV cable test Insulation resistance below 100,000Mohms

    Based on the 75k value, I'm assuming you used a separate insulation resistance tester and didn't use the VLF to perform the DC test. Those results are typically lower than a Megger insulation tester. Figured I'd mention something anyway. Also, what is the length of the cable? Capacitance plays a major role in the value. Its not uncommon to get values less t...

    Posted by ElectricalTestTech on 05-12-2025
  • 35 Kv MV cable test Insulation resistance below 100,000Mohms

    I would show the engineer table 100.1. 6. For cables, the acceptability for energization should not be determined by the recommended minimum insulation resistance values shown above. Conductor and insulation geometry, temperature, and overall cable length need to be taken into account per manufacturer’s published data for definitive minimum insulation re...

    Posted by Jason_Swenson on 05-11-2025
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