Audio installations; automated control installations; building automation installations; cable installations for the transmission of data; cable installations for the transmission of voice; cable management installations for data signal transmission; cable television installations; cabling networks (installations) incorporating fibre optic cables; calibration installations; checking (supervision) installations; closed circuit television monitoring installations; closed circuit video installations; coaxial cables for use in cable television installations; coding installations for subscription television channels; communication installations; computer controlled installations of liquid crystal display screens; computer controlled installations of video display apparatus; computer installations; computer installations (networks); control apparatus for electric indoor light installations; display apparatus for use with data processing installations; fibre optic link installations; fibre optics communications installations for use with electronic apparatus; flexitime recording installations; imaging installations; installations (electric or electronic) for use in access control; installations for transmitting images; laser installations, other than for medical use; loudspeaker installations; optical fibre installations; personal communication installations; programmable controls for lighting installations; programmers for central heating installations; public address installations; radiopaging installations; simulators for leisure installations; soldering installations (electric); video camera security installations; video door telephone installations; video multiplexing apparatus for use with video camera installations; video wall installations

Electric appliance installation and repair; information technology (IT) services (computer and computer peripherals installation and maintenance); installation and repair of computer hardware; installation of audio electrical apparatus; installation of cable television systems; television equipment installation and repair