3. Dielectric strength
3.1 Definition
Also known as breakdown voltage or disruptive voltage, dielectric strength E is defined as the ratio between the voltage at which a loss of insulating properties occurs under specified test conditions and the distance between the two electrodes on either side of the polymer to which the voltage is applied:
E = U/e
with :
- e (m) :
-
inter-electrode distance,
- U (V) :
-
applied voltage at which breakdown occurs,
- E (V/m) :
- dielectric...
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Dielectric strength
Other important properties of dielectric polymers
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