It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. The list below also outlines the different colour codes for single phase and multiphase in australia.
Three Phase Electric Power Wikipedia
3 phase plug wiring diagram nz. It is also used to power large motors and other heavy loads. In new zealand it is most common for the coloured wires inside power cords to look like either a or b. A three wire three phase circuit is usually more economical than an equivalent two wire. Brown orange and yellow are used for 480 vac. It is designed for three phase applications and is rated at 10 a 250 v400 v. Installation wiring also known as building wiring is for things such as the wiring behind power points and walls.
Three phase electric power is a common method of alternating current electric power generation transmission and distribution. Another of the new basic skills family of short videos. Electricity gas high risk database user guide to the eghr database. Living here in new zealand i have to put up with the really crappy nz mains plug they are quite simply useless and dangerous. 01 what is 3 phase power. Diamatic usa 16798 views.
2 internal wiring of equipment is not regarded as installation wiring but may be subject to particular equipment standards. The type 25 plug and socket has 3 rectangular pins 4 mm x 5 mm plus 2 flat pins for l2 and l3. The socket will also accept types 11 and 12 plugs and the europlug. Fixed wiring electricity supply requires specific wiring colour regulations bs 7671 to identify different power lines in different countries. They should be connected as illustrated below. How to wire a plug.
Study the diagram below and ensure that you always connect the correct colour to the correct letter. The type 15 plug and socket has 3 round pins of 4 mm diameter plus 2 flat pins for l2 and l3. 3 switchboard wiring is not regarded as installation wiring but the asnzs 3439 series restricts the greenyellow combination to the identification of earthing conductors. 220 volt single phase and 3 phase for welders adapters plugs configurations etc. Current australian colour code single. Phase 1 red phase 2 white phase 3 dark blue neutral black earth green.
The usa have their own wiring colours for electrical circuits black red and blue are used for 208 vac three phase. However if you do need to rewire there is only one way to wire an electrical plug safely.
Gallery of 3 Phase Plug Wiring Diagram Nz
