testing insulation

What Affects Insulation Resistance Readings?

by

What Affects Insulation Resistance Readings? Factors that affect insulation resistance measurements include such things as temperature, humidity, previous conditioning, test voltage, charging current and duration of the test voltage (electrification time). How do you increase the value of insulation resistance? one thumb rule is: For every 10°C increase in temperature, halve the resistance; or, for

What Is The Minimum Insulation Resistance Value?

by

What Is The Minimum Insulation Resistance Value? Insulation resistance should be approximately one megohm for each 1,000 volts of operating voltage, with a minimum value of one megohm. For example, a motor rated at 2,400 volts should have a minimum insulation resistance of 2.4 megohms. What is a good insulation resistance value? Insulation resistance value