Electricity is a very important component of the construction of a house. Lights, appliances, air conditioning and heating, and security systems all run on electricity. Electrical wiring is essential to installing electricity in a house. All electrical-wiring work must be done by a licensed electrician, must follow the National Electric Code (NEC) and must be done according to codes set forth by the local building codes . So how can you learn about electrical wiring and become a licensed electrician? Most electricians learn their trade through apprenticeship programs that combine on-the-job training with classroom study, as in this app, take a look!