3-Phase & Single Phase Electrical Distribution Wiring Installation in Home How to Wire There Phase Main Distribution Board? Wiring Diagram of Three Phase Distribution Board Wiring Color Codes of IEC and NEC. How to do a Three Phase Consumer Unit Installation from Utility Pole to a 3-Phase Energy Meter & 3-Phase Distribution board and then How to connect Single Phase & Three Phase Loads in a Three Phase Wiring Distribution System How to Connect Single Phase & Three Phase Loads in a Three Phase Wiring Distribution System? What is Three Phase & Single Phase Power? Why We Need Three Phase Power Supply? Requirements for Three Phase Wring Installation General Precautions.