Agility and dexterity also are important. Good color vision is needed because workers must frequently identify electrical wires by color. High school courses in mathematics, electricity, electronics, mechanical drawing, science, and shop provide a good background. Special training offered in the Armed Forces and by post-secondary technical schools also is beneficial. Regardless of how one learns the trade, previous training is very helpful.
Electricians use hand tools such as screwdrivers, pliers, knives, and hacksaws.
They also use power tools and testing equipment such as oscilloscopes, ammeters, and test lamps. Successful electricians possess good mechanical skills, excellent reading comprehension, mathematical aptitude, and organizational and problem-solving abilities. A good general knowledge of construction and a fanatical regard for safety are essential. Electricians should also have good interpersonal and communication skills, especially if they supervise employees or deal with clients. Spanish-language ability is especially helpful in the construction industry.