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Electrical Cables

Electrical Cables
_________ cables are used for 132 kV lines.

Super tension
High tension
Extra super voltage
Extra high tension

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Electrical Cables
A cable carrying alternating current has

Hysteresis, leakage, copper and friction losses
Hysteresis, leakage and copper losses only
Hysteresis and leakage losses only
Hysteresis losses only

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Electrical Cables
In case of three core flexible cable the color of the neutral is

Blue
Red
Brown
Black

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Electrical Cables
Copper as conductor for cables is used as

Hardened and tempered
Hard drawn
Annealed
Alloy with chromium

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Electrical Cables
The thickness of metallic shielding on cables is usually

0.04 mm
0.2 to 0.4 mm
40 to 60 mm
3 to 5 mm

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Electrical Cables
The advantage of oil filled cables is

All of the listed here
More perfect impregnation
No ionization, oxidation and formation of voids
Smaller overall size

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