The ability of a plastic material to resist the action of a high voltage electrical arc, usually stated in terms of time required to render the material electrically conductive.
The capacity of insulating material to resist the passage of current on its surface when placed between two electrodes. Arc resistance values are given in seconds. Minimum acceptable arc resistance is approximately 115 seconds. Breakdown usually occurs as a conducting path is burned on the surface of the dielectric material.
The time required for an arc to establish a conductive path in a material.
A measure of a materials ability to resist conducting electricity. The ASTM D-495 test method subjects the surface of material to a continuous arc of high voltage and low amperage.
Time required for a given applied electrical voltage to render the surface of a material conductive because the carbonization by the arc discharge.
The resistance to current flow across the surface of the material.
The time it takes for an arc to create a conductive path in a material.
1) the resistance to the flow of current offered by the voltaic arc (i.e., if the carbons of an arc lamp are 1/32" apart, the arc resistance will be 1 ½ Ohms). 2) the resistance of a material to the effects of an arc passing across its surface stated as a measure of the total elapsed time taken to form a conducting path (of material carbonizing by the arc flame) across the surface under prescribed conditions of application of a high voltage, low current arc (as across an insulator).
