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ELECTRICAL CABLES

Electrical Cables
The breakdown voltage of a cable depends on

All of the listed here
Time of application of the voltage
Presence of moisture
Working temperature

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Electrical Cables
High tension cables are generally used up to

132 kV
33 kV
66 kV
11 kV

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Electrical Cables
Low tension cables are generally used up to

600 V
1000 V
200 V
400 V

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Electrical Cables
The breakdown of insulation of the cable can be avoided economically by the use of

Both Inter-sheaths and Insulating materials with different dielectric constants
Insulating materials with different dielectric constants
Inter-sheaths
None of the listed here

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Electrical Cables
In a cable, the maximum stress under operating conditions is at

Sheath
Armour
Insulation layer
Conductor surface

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