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'VPM' appears to be some non-standard symbol for 'volts per metre', the correct symbol for which is 'V/m'. For insulators, many tables list their dielectric strengths in kilovolts per metre (kV/m) or even kilovolts per millimetre (kV/mm).

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Q: What is dielectric strength VPM?
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Related questions

For an insulating material dielectric strength and dielectric loss should be respectively?

For an insulating material dielectric strength and dielectric loss should be respectively


Why is the dielectric strength of vacuum infinite?

The dielectric strength of vacuum is infinite because there is no molecule in the vacuum.


For an insulating material dielectric strength and dielectric loss should be what?

high and high


What is dielectric breakdown?

The dielectric breakdown strength is 3,000 volts per millimeter.


Is dielectric strength the same as dielectric constant?

No, these are two unrelated properties of a material.


What is the dielectric breakdown strength?

The dielectric breakdown strength is the maximum electric field that a dielectric material can withstand before it breaks down and allows electrical current to flow through it. It is a measure of the insulation properties of the material.


Which is another name for dielectric strength test?

ASTM D149 - 09 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies


How can you test the dielectric strength of oil of transformer?

dielectric strength is tested by transformer dielectric strength oil testing machine. at first, oil which is to be tested is pour near the two electrode. both the electrode should be dipped in oil . then adjust the distance between the electrode .now start the machine.when a sound came from machine then note down the dielectric strength of the oil.


For an insulating material dielectric strength and dielectric loss should be respectively high or low?

For an insulating material, the dielectric strength should be high to withstand high voltages without breaking down. Conversely, the dielectric loss should be low to minimize energy loss due to internal friction within the material when subjected to an electric field.


How does the moisture and temp effect the breakdown strength solid dielectric?

Generally, increased moisture levels will lower breakdown strength, especially if the dielectric readily absorbs water. Increasing temperature generally decreases breakdown strength of solid dielectrics. The dielectric strength of some materials may increase with temperature within limited temperature ranges. However, dielectric strength eventually begins to decrease at higher temperatures.


Where is the knowledge of dielectric strength helpful?

One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.


Which is the best electrical insulator?

According to a few charts I was able to find, the most realistic material with the highest dielectric strength happens to be Mica, with dielectric strength of 118.