The operating voltage of extra high tension cables is upto

The correct answer is: C. 33 kV

Extra high tension (EHT) cables are used to transmit electricity at high voltages over long distances. The operating voltage of EHT cables is typically in the range of 33 to 300 kV. The higher the voltage, the less power is lost in transmission.

EHT cables are typically made of aluminum or copper and are insulated with a variety of materials, including paper, oil, and gas. They are often buried underground or installed in overhead lines.

EHT cables are an essential part of the electricity grid and play a vital role in delivering power to homes and businesses.

Here is a brief explanation of each option:

• Option A: 6.6 kV. This is the operating voltage of high voltage (HV) cables. HV cables are used to transmit electricity at voltages up to 30 kV.
• Option B: 11 kV. This is the operating voltage of medium voltage (MV) cables. MV cables are used to transmit electricity at voltages up to 115 kV.
• Option C: 33 kV. This is the operating voltage of EHT cables. EHT cables are used to transmit electricity at voltages above 115 kV.
• Option D: 66 kV. This is the operating voltage of ultra high tension (UHT) cables. UHT cables are used to transmit electricity at voltages above 300 kV.