Airtight connections for electrical cables; airtight closures for electrical cables; electrical adapters; electrical power supplies; power adapters; measuring apparatus and instruments; testing apparatus and instruments; inspecting apparatus and instruments; detecting apparatus and instruments; signalling apparatus and instruments; optical apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording sound, images or data; apparatus and instruments for transmitting sound, images or data; apparatus and instruments for reproducing sound, images or data; apparatus and instruments for processing sound, images or data; computer applications; multimedia applications; downloadable software applications; electrical cabling; branch boxes [electricity]; couplings, electric; collectors, electric; electronic devices; computing devices; multimedia devices; electronic components; computer hardware; ducting for electric cables; conductors, electric; connections for electric lines [electricity]; connectors [electricity]; plug connectors; power connectors; electric cable connectors; insulated electrical connectors; electronic connectors; threaded electrical cable connectors; plug-in connectors; contacts, electric; circuit breakers; junction sleeves for electric cables; terminals [electricity]; power sockets; power plugs; power distribution boxes; junction boxes [electricity]; sensors; Internet of Things [IoT] sensors; wire connectors [electricity]; application software; artificial intelligence software.;