First course of the NCCER Level 4 electrical curriculum. This course covers basic calculations for commercial and residential applications, including raceway fill, conductor derating, and voltage drop. Covers the installation, alarm system, and backup system requirements of electrical systems in health care facilities, including the requirements for life safety and critical circuits. Explains the NEC® installation requirements for electric generators and storage batteries used during such emergency situations. Explains the function and operation of basic electronic devices, including semiconductors, diodes, rectifiers, and transistors. Explores the technologies, codes, and wiring approaches used to assemble a fire alarm system, examines installation and troubleshooting techniques.