This class includes the installation of electrical systems in all kinds of buildings and civil engineering structures.

This class includes:
——installation of: electrical wiring and fittings, telecommunications wiring, computer network and cable television wiring, including fibre optic, satellite dishes, lighting systems, fire alarms, burglar alarm systems, street lighting and electrical signals, airport runway lighting

This class also includes:
——connecting of electric appliances and household equipment, including baseboard heating

This class excludes:
——construction of communications and power transmission lines, see 4220
——monitoring or remote monitoring of electronic security alarm systems, such as burglar and fire alarms, including their maintenance, see 8020