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Question

In cables, the thickness of the layer of insulation on the conductor depends upon :

A.

Current carrying capacity

B.

Voltage

C.

Power factor

D.

Reactive power

Answer ( Option B)

Voltage

Solution

The thickness of the layer of insulation on the conductor in cables depends upon voltage. Insulation covers the base conductor. Material used in insulation have greater dielectric strength and absorbs all the voltage gradient just within few mm or cm distance. As voltage increases thickness of insulation increases.

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