To anyone that is not sure how connections are made at these voltages, mark my words, any small loss in a bad connection normally results in a spectacular failure of the Copper/Aluminium joint.
Normally the Drop-Out fuse (Primary) has a Copper socket on one end and a Aluminium one, on the other.
The majority of these connections are done with a proprietry crimp tool, supplied by the Local Lines Co.
They are also inspected by the Network Operator (Lines Chief), before the system is re-energised. [Linked Image]