Factors affecting the insulation resistance



1.  Temperature:  Insulation resistance decreases with the rise of the temperature and is very much affected by temperature variations.


2. Moisture: Surface resistance of the insulation decreases if it expressed to moisture.


3. Voltage: The value of insulation resistance its also affected by the voltage applied. Insulation resistance decreases with the increase in applied voltage.


4. Age: Insulation resistance decreases with age.

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11 comments:

  1. Karan SinghSeptember 25, 2017 at 8:49 PM

    These are general cause...... I wna know about, oxidation,dielectric strength,atmoshere etc....

    ReplyDelete
  2. UnknownSeptember 16, 2019 at 6:18 AM

    Can you cite your source for how insulation resistance is affected by voltage. I know that there is a voltage dependent insulation attribute known as dielectric withstanding voltage but I am not aware of voltage dependent insulation resistance in general purpose electric wire insulation.

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