J oi nt box or Tr ee system – In joint this method of wiring connecting to appliances are made through Joints. These Joints are made in Joint boxes by means of suitable connecting or joints cut outs. This method of wiring does not consume too much cable size.
Loop in system — This method of wiring in universally is in wiring. Lamps are then appliances are connected so that each of the appliance can be controlled individually. When a connection is required at a light or switch the feed conductor is loop in by bringing it directly to the terminal and then carrying it forward again to the next point to be fed.