WZSubclass
WZ 43.21.0—Electrical installation
Subclass · Klassifikation der Wirtschaftszweige (2025)
Where 43.21.0 sits
What 43.21.0 includes
- This subclass encompasses the installation, repair, and maintenance of electrical systems in all types of buildings and structures.
- Installation of: • electrical wiring and fittings • wiring for telecommunications systems • wiring for computer networks and cable television, including fiber optic cables • satellite dishes • lighting systems • fire alarm systems • burglar alarm systems • street lighting and electrical traffic signals • special runway lighting at airports • photovoltaic systems on buildings • energy storage systems
- Installation of charging stations ("wallboxes") for electric vehicles
- Connection of electrical appliances and household appliances, including baseboard heaters
What 43.21.0 excludes
- Installation of industrial machinery and equipment (e.g., freestanding charging stations), see 33.20.0
- Construction of distribution lines for electricity and telecommunications, see 42.22.0
- Construction of solar and wind energy plants, see 42.22.0
- Construction of electricity distribution systems (e.g., for electric vehicles), see 42.22.0
- Installation of (electric) heating systems, see 43.22.0
- Installation of lightning rods, see 43.24.0
- Monitoring and remote monitoring of electronic security systems (e.g., burglar alarms and fire alarms, including their installation and maintenance), see 80.09.0
43.21.0 in other systems
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