In order to install plugs sockets and other isolating switches inside the cold stores a aquot;Modification Orderaquot; had to be obtained to the N.Z. Electrical Wiring Regulations. The circuits were arranged as follows: (a) 30 A three-phase weatherproof socket outlets with interlocked isolating ... Portable tools with N.Z. Standard 3-pin plugs at 230V are used with one to one double insulated portable transformers.
|Title||:||New Zealand Engineering|