A few New Zealand ones which just come to mind.
Most are the same as for the UK which Pauluk already described before,
but here are a few local Auckland ones
MEN = Multiple Earthed Neutral.
Pilots = control wires for street lights and hotwater circuits.
Tail and Charley = the way strings of relays and contactors are wired up in the POCO system.
MDI = Maximum Demand Indicator.
Screwing the relay = a way of holding a relay or contactor in with a square headed screw.
Grants Hot Box a box with various MCB's ( 6, 10, 16, 20 and 32 Amps ) in it to test overhead streetlight circuits.
Cheers Raymond RODALCO