By which of the following methods the protection against direct lightning strokes and high voltage sweep waves is provided ?
A. Lightening arresters
B. Ground wire
C. Lightening arresters and ground wires
D. Earthing of neutral.
Answer:C
By which of the following methods the protection against direct lightning strokes and high voltage sweep waves is provided ?
A. Lightening arresters B. Ground wire C. Lightening arresters and ground wires D. Earthing of neutral.