The BLS wage survey reports straight-time pay. It excludes overtime, and BLS's own career guide says overtime is common for electricians, with schedules that can include evenings and weekends. An electrician working regular overtime can take home noticeably more than the hourly rate in these tables suggests.
The survey also leaves out the self-employed, about 7% of electricians, and does not count employer-paid benefits such as health and pension contributions.
Electrical contractors employ 66% of electricians, according to BLS. Manufacturing plants (6%) and the federal government (3%) employ smaller shares, often in maintenance electrician roles with different schedules.