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Tuesday, January 31, 2023

on video Complete wiring of a three storey house using 3 phase


  I try to explain three phase distribution board layout and wiring diagram. Three phase power supply is required, when the Power distribution requirement cannot be handled by a single phase power supply.

Three-phase system can be described as the common method of alternating current power generation, transmission, and distribution.  In this system, the current will pass through the three wires, and there will be one neutral wire for passing the fault current to the earth.

Updated Electrical Wiring Color Codes 

Phase 1- Brown

Phase 2 - Black   

Phase 3 - Grey   

Neutral - Blue   

Protective Earth – Green-and-Yellow


  I try to explain three phase distribution board layout and wiring diagram. Three phase power supply is required, when the Power distribution requirement cannot be handled by a single phase power supply.

Three-phase system can be described as the common method of alternating current power generation, transmission, and distribution.  In this system, the current will pass through the three wires, and there will be one neutral wire for passing the fault current to the earth.

Updated Electrical Wiring Color Codes 

Phase 1- Brown

Phase 2 - Black   

Phase 3 - Grey   

Neutral - Blue   

Protective Earth – Green-and-Yellow

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