That 240/415 Volt cable is armoured ? Usually it is for 11 kV cables or is this a UK standard. I'm supprised in this set up which does not allowe for drip loops. We have similar cables, 11 kV in as bad a state with outer covering flaking off.
I like the temporay ( permanent ) fix with the almighty cable ties.
The product of rotation, excitation and flux produces electricty.