This module provides learners with the knowledge and practical skills required to install, maintain, and troubleshoot domestic electrical systems safely and efficiently. It covers the principles of household electrical wiring, electrical components, tools, and safety regulations used in residential buildings. Learners will study electrical circuit design, installation of lighting systems, sockets, switches, distribution boards, and protective devices. The module also focuses on routine maintenance, fault detection, and repair techniques to ensure reliable and safe operation of electrical installations in homes. By the end of the module, trainees will be able to interpret electrical drawings, perform proper installations, diagnose common electrical faults, and apply appropriate troubleshooting methods in domestic electrical systems while complying with electrical standards and safety practices.