Wiring Diagram for House with MCB Rating Selection Guide Today we are going to discuss the house wiring. This article for those students who are interested to know about the house wiring. In this article, I will help you to understand how to select the rating of MCB, how to connect all loads of a house properly. In this article, the wiring diagram for a house which I have given is not proper as an electrical drawing. Working Principle of Earth Leakage Circuit Breaker ELCB Mar 23, 2019Earth Leakage Circuit Breaker or ELCB. If any current leaks from any electrical installation, there must-be any insulation failure in the electrical circuit, it must be properly detected and prevented otherwise there may be a high chance of electrical shock if-anyone touches the installation earth leakage circuit breaker does it efficiently. Means it detects the earth leakage current and Three Phase Electrical Wiring Installation in Home - NEC Related Post: Staircase Wiring Circuit Diagram – How to Control a Lamp from 2 Places by 2-Way Switches? 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. House Wiring Diagrams and Project Guides - Do It Yourself Doorbell Wiring Diagrams-Wiring for hardwired and battery powered doorbells including adding an AC adapter to power an old house door bell. Lamp Wiring Diagrams- Wiring for a standard table lamp, a 3-way socket, and an antique lamp with four bulbs and two switches.