Kilo Watt Hour Meter (kWh) and Main service connection

Every time when you get out or come home, you always see this meter and two black color box stay outside and you freaking out what the heck is that?!!! well you are here in the right place to know about these two main things that you get your electrical supply to your home.
The two pictures above shown is Kilo Watt Hour meter (kWh) and Main service connection. 

The function of Kilo Watt Hour meter is to measure the amount of power usage per month. The Black color box is called 'Cut Out'. In this cut out has fuse with current rate of 63-100 Amps. This  fuse is stay in side the cut out housing and provide easy removable cut out housing to change fuse or the cut out itself. This cut out will disconnect whether any maintenance done outdoor electrical supply or fuse blown when over current happens.

We know the both function. Now we going to look at the wiring for both. This going to be easy to understand and the wiring is simple. Let's look it out.

The picture above shown is the wiring of single phase (LEFT) and three phase (RIGHT) of Kilo Watt Hour meter and main service connection. The both Kilo Watt Hour meter provide with numbers at the connection. When you closely look at the connection you will see one goes In and one goes out. The incoming will receive by cut out and flows to the meter and go out and flow to the distribution board to power electrical appliance. this will work for both phase. The only difference is the connection is not same as the both phase. 

Now days Kilo Watt Hour meter is digital,but the connection is same as the analog. So don't confused.