Discussion
A layer of steel wire provided over the cable bedding to protect the cable from mechanical damage is known as:
Answer: D
In a power cable the layers from the conductor outwards are the insulation, the metallic sheath, the bedding, the armouring and the serving. The layer of steel wire or steel tape laid over the bedding to protect the cable from mechanical damage is the armouring, option (D). The serving is the outer covering of jute or compounded fibre over the armour, the metallic sheath keeps moisture out, and the insulation separates the conductors.
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