The choice of the system of power distribution is determined by the type of power that is available and by the nature of the load required for particular user ie. 1 distribution board 2 way 15 a 250 v 2 distribution board 2 way 15 a 250 v 3 distribution board 4 way 50 a 440 v etc.

Fa5ee 98 Jeep Wrangler Turn Signal Wiring Diagram Manual
Distribution board wiring diagram pdf. 3 phase distribution board wiring diagram pdf wiring diagram is a simplified tolerable pictorial representation of an electrical circuit. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v 230 v h1 h3 h2 h4 optional connection electrostatically shielded transformer f u 6 off on m l1 l2 1 2 stop ol m start 3 start start fiber optic. In the diagram is shown the method of wiring distribution main board form utility pole to energy meter and then dp circuit breaker and sp mcb breaker. Wiring diagram of a 230v single phase 63a distribution board consumer unit with rcd for lighting ac unit and 13a radial circuits power from the utility kwhr meter 2 nos. This type of arrangement is the commonly used method of distribution board for house wiring. For this post i designed a diagram about distribution wiring we can called this circuit breaker or controlling fuse box.
The cable or wire size the rating of breakers fuse etc depends on the type of wiring purpose and rating of loads. X 16mm2 cupvcpvc cable lighting 1mm2 cupvcpvc lighting 1mm2 cupvcpvc lighting 1mm2 cupvcpvc lighting 1mm2 cupvcpvc 13a socket outlets radial 25mm2 cupvc. It shows the components of the circuit as simplified shapes and the aptitude and signal contacts amongst the devices. Through the mcb phase lines are distributed to electrical wiring for lighting fixed devices and power distribution points. Distribution board wiring is very important for controlling the e wiring.