For simple rugged power distribution it's hard to beat these rugged Ceeform connectors. They're available in a range of current and voltage ratings with suitable colour coding and keying. They're so common that they literally only cost a few pounds each in quantity for the basic blue/yellow 16A plugs/sockets.

They can be dropped from height, dragged across rubble and left out in arduous weather conditions without too many problems. The fact they're made of resilient plastic with long overlapping lips means that they can be handled relatively safely in wet conditions.

One thing I didn't mention was that the black bodied connector is specifically designed for the entertainment industry where it blends in better than coloured connectors.

I love these connectors. Easy to wire and super-rugged. The most common problems I have with them are broken wires or very rarely a welded contact on higher current connectors. They're cheap and common, so easy to keep spares in stock. Swap or reterminate and they're back in action.

I have seen these in the Empire Plaza and was wondering how they worked and the benefits of them for connecting and disconnecting high voltage, high current loads.