Q. While laying 11 kV cables the minimum bending radius has to be ( D = diameter of cable )

A
2 D
B
4 D
C
12 D
D
6 D
Solution:

Minimum Bend Radius = Cable Multiplier x Cable Outer Diameter

For single conductor cables with shielding, above 1 kV , Minimum Bend Radius is 12 times (cable multiplier) the overall cable diameter.
For single or multiple conductor cables without shielding, above 1 kV , Minimum Bend Radius is 8 times the overall cable diameter.

from options the correct answer is 12 D

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