Ask Experts Questions for FREE Help !
Ask
    mentis's Avatar
    mentis Posts: 5, Reputation: 1
    New Member
     
    #1

    Jul 13, 2006, 09:37 PM
    What's the diff between diaelectric test and insulation test
    I am puzzled, What exactly is the difference between diaelectric test and insulation test.
    Some says it the same, but others says it's because one applied power to perform the test the latter don't.
    And some says both are using power but one is using AC power and the other using Dc power.
    There is so many version, can anyone out there set the record straight once and for all.
    tkrussell's Avatar
    tkrussell Posts: 9,657, Reputation: 724
    Uber Member
     
    #2

    Jul 15, 2006, 06:39 AM
    Depends on the context the words are used, and sometimes depending on the personnel or the area involved.

    Dielectric testing is also called Hi-Pot testing, using a test set that applies a very high voltage into a cable or device to be tested, and measures the milliamps that flow through the insulation.

    Another test is called Megger, which applies a much lower voltage into the cable or device, and measures the actual resistance in megohoms.

    I have included a couple of articles from CE magazine (Compliance Engineering) that offers a detailed explanation of both methods:
    http://www.ce-mag.com/archive/02/Spring/gray.html

    http://www.ce-mag.com/archive/01/Spring/Ahmadi.html

    We use both methods, primarily Hi-Pot testing on Medium and High voltage cables (above 600 Volts), and Megger testing on low voltage cables (600 Volt and below) Hi-Pot testing can be destructive due to the high voltages used, and Megger is considered as Non-destructive.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Test [ 4 Answers ]

Test:confused: :confused: :rolleyes: :D :D http://www.lunarforums.com/forum/Smileys/default/woot_jump.gif

Do I need to test? [ 3 Answers ]

I live in Virginia. My wife has just had a baby girl and there is a question of paternity. I am willing to accept this child as my own and have read that in Va, the husband is presumed to be the father. There is no father listed on the BC. Do I need to have a paternity test to have my name placed...

Test [ 2 Answers ]

This is a test

Negative test [ 2 Answers ]

My period was due to start January 7th. My last one was December 10th. I have my period every 28 days. I was also due to start February 4th but didn't. I have taken six home tests that came back negative. I feel pregnant and I have all the symptoms of pregnancy. Anyone had this problem? Do you...


View more questions Search