. Related Post:Why We Need Three Phase Power Supply?To operate high power equipment and appliances such as electric motors and and high power rated air compressor etc, we need Three Phase Power supply instead of Single Phase Power supply. In ordinary homes, we mostly use Single Phase power supply to operate lighting load, fans, washing machines etc, but in some cases as well as industries offices high torque motors, multi-storey & large buildings, Three Phase power supply needs to operate and maintain the system. In this tutorial, We assume that we will only connect single phase load (Light points, fans, TV, Power Socket, AC etc.) in this three phase electrical wiring installation. In other words, we will not power up 3 phase motors because in our homes, we haven’t that kind of (three phase) loads.
If three phase load exists in your home, then you can do so. As we can see that the total load is exceeded the limit of single phase electrical wiring installation as we will be feeding different rooms and areas in home, that’s why we have to wire our distribution in three phase system. First of all, connect the three-phase energy meter as shown in fig. ( if you don’t sure that how to wire a 3-phase energy meter, then check this simple tutorial which show. Connect the MCCB (Moulded Case circuit Breaker) as main to the incoming three phases ( R, Y, B) from 3-phase energy meter. (Check the wiring color code for different areas in below section).
Now connect the outgoing three phases ( R, Y, B) from (Moulded Case circuit Breaker) to the DP (Double Pole, RCD, SP (Single Pole MCBs and load) as shown in fig). Now connect the from DP with Phase (Line) and Related Neutral Link.
The Out going Phase lines should be connected to the final and final sub circuits. The same can be done for Neutral Wires.
Finally, Connect the electrical appliances with the Earth link terminal which leads to in the as shown in fig below. Do the the same steps for all three distribution boards for different rooms and areas.
Electrical House Wiring Color Code
Related Post:How to Connect Single Phase & Three Phase Loads in a Three Phase Wiring Distribution System?As mentioned above, Three Phase loads (415V or 208V AC Such as 3-Phase Motors) can be directly connected to the three lines accordingly i.e. There is no need to connect to the neutral point.
For Single Phase Loads (230V or 120V AC Light, TV, Power socket, Fans etc), They can be connected to the Phase and Neutral wire as shown below. Note that Earth or ground wire must be connected to the electrical appliances and equipment connected to both single phase and three phase supply system for safety. General Precautions.
Electricity is Our Enemy, if you give it a chance to kill you, Remember, they will never miss it. The information is very useful since I am constructing my own 4 bedroom house in New Delhi. I have a query though: i would like to have one light; fan and TV in each room to be connected to a single phase UPS. The electrical contractor is asking for high extra payment for doing this. Would there be significant extra cost involved.
Electrical House Wiring Diagram Pdf
I would have thought that the only extra is drawing one wire from the mains to the UPS and from the ups to the bus for emergency circuits. The wiring of the mergency circuits would not change since they would get power from the grid normally and from the ups in case of power failure.
Electrical Building Wiring Pdf
Pinterest.comElectrical Wiring Diagram For House wiring diagram Electrical.1000 × 1154 - 121k - gifpinterest.comHome Electrical Wiring Diagrams.