For laying 3.3 to 11 kV cables, the minimum depth of cable trench should be

For laying 3.3 to 11 kV cables, the minimum depth of cable trench should be:

1. 0.45 meters
2. 0.9 meters
3. 1.85 meters
4. 1.95 meters

Correct answer: 2. 0.9 meters

Related MCQs:

1. For laying cables at road crossings, the minimum depth of cable trench is generally
2. For laying 1.1 kV cables, the minimum depth of cable trench should be
3. For laying 22 to 33 kV cables, the minimum depth of cable trench should be

Explanation: When laying 3.3 to 11 kV cables, the minimum depth of the cable trench is typically specified to ensure the safety and proper functioning of the cables. The depth of the trench is determined based on factors such as protection against mechanical damage, thermal insulation, and accessibility for maintenance.

In general, higher voltage cables require deeper trenches. For 3.3 to 11 kV cables, a minimum depth of 0.9 meters is commonly recommended. This depth helps protect the cables from external stresses, prevents accidental damage, and ensures that the cables are safely buried below the ground surface.

It’s important to adhere to these specifications to meet safety standards, prevent cable damage, and ensure the reliability of the electrical distribution system. Always refer to local regulations and guidelines to confirm specific depth requirements for cable trenches in your region.