Wiring of the Distribution Board with RCD , Single Phase, (from Energy Meter to the main Distribution Board) Fuse Board Connection.

 Wiring of the Distribution Board with RCD , Single Phase, (from Energy Meter to the main Distribution Board) Fuse Board Connection.
 Note: here you can read this wiring diagrame with RCD = Residual Current Device 
Wiring of the distribution board , Single phase, from Energy meter to the main distribution board (Without RCD = Residual Current Devices).
                                                                     Click Image to enlarge


Main Distribution Board or Fuse Boards

Main Distribution Board or Fuse Boards ( Consumer Unit) usually contains three things.
They are:

  1. DP = Double Pole MCB  (The main switch)
  2. RCD (Also DP) Residual Current Devices.
  3. SP = Single Pole MCB ( Circuit Breakers and Fuses)

it is used to control and distribute electric supply (safely to electrical appliances) around your home  
1)
DP = Double Pole MCB  (The main switch)
This allows you to turn off and on the electric supply to your home because this is the main operating switch to control electric supply. remember that immediately switch off the main switch in emergency i.e. in electric shock, fire or  while working on main board. You can use also multiple mains switch if you has more supply unit i.e storage heater etc. so then use a separate Fuse board. 

2)  
RCD (Also DP) Residual Current Devices.
A (RCD) residual-current device, or (RCCB) residual-current circuit breaker , is an electrical wiring device or switch that disconnects or trip a circuit whenever it detects that the electric current is not balanced between the energized conductor and the return neutral conductor. And then instantly disconnect the electricity (in dangerous conditions). 

3)
Circuit Breakers  

Circuit breaker is a device which switch off and on electric supply at normal ( and abnormal) condition). These are automatic protection devices in the Main switch board or fuse-box that switch off a circuit if they detect a fault. the size of the fuse and Circuit Breaker are similar, but it give more and more protection. You can reset it again if the trip ever.

Note: here you can read this wiring diagrame with RCD = Residual Current Device 
Wiring of the distribution board , Single phase, from Energy meter to the main distribution board (Without RCD = Residual Current Devices). 

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11 comments

  1. hdmfhdf-[kj<br />t

  2. It is hard to understand electrical distribution if you dont have background.

  3. anyway my man ,i think the diagram z well designed to understand

  4. Muddasir Rathore

    it good..

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  9. You can connect the sub-circuit or final sub circuit to the out put of SP (Single Pole) Circuit breaker.. in other words, click on image and check the SP&#39;s breakers outputs (1-8)… you can see the mentioned title as &quot;Live Wires or Phase Supply to the Sub Circuits or Final Sub circuits&quot;.

  10. Can anybody advise me The wiring diagram of USB socket for house wiring.

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