Abbreviation of 電気工事士 or 電気工. Common in job titles and informal contexts.
He works as an electrician at a construction site.
electrical engineering
Abbreviation of 電気工学. Used in academic or technical contexts.
See also: 電気工学
I'm majoring in electrical engineering at university.
electric works (suffix)
Used as a suffix after a company name to indicate an electrical contracting or engineering firm.
Tanaka Electric Works is a well-known electrical contracting company in the area.
Abbreviation formed from the first characters of 電気 (electricity) and 工事 (construction) or 工学 (engineering).