residential, commercial and industrial installation and repair of computer wiring cabling; maintenance and repair of electrical apparatus; telecommunication wiring; services of electricians; installation of electrical wiring for buildings; repair and maintenance of electrical appliances; electrical wiring services; installation, maintenance and repair of electrical devices; telecommunication wiring services; repair of electrical equipment and electrotechnical installations; electric appliance installation; repair of electrical equipment; installation, maintenance and repair of electrical and electronic apparatus and equipment; repair and maintenance of electrical apparatus; installation of electrical appliances; installation of electrical apparatus for buildings; installation of electrical wiring; providing information relating to the installation of electrical apparatus; installation, maintenance and repair of electrical equipment; construction work relating to the installation and maintenance of electrical systems; renovation, repair and maintenance of electrical wiring; electrical installation services; advisory services relating to the maintenance and repair of mechanical and electrical equipment; installation, maintenance and repair of apparatus for supplying electricity; installation of electrical apparatus; installation, maintenance and repair of electrical lighting apparatus; installation and repair of electrical appliances; installation of electrical apparatus or generators; electrical equipment repair; installation, maintenance and repair of electronic, electrical and mechanical apparatus