Electrical installations are performed in residential buildings, business premises, industry, agricultural goods, construction sites, etc. There are the following types of installations: electricity, lightning, telecommunications and signaling. Electrical installations are made to provide electricity to consumers.

Electrical installations are performed in residential buildings, business premises, industry, agricultural goods, construction sites, etc. There are the following types of installations: electricity, lightning, telecommunications and signaling. Electrical installations are made to provide electricity to consumers. The lightning rod installation is designed to protect people and objects from the harmful effects of atmospheric electrical discharge. Telecommunication installations allow data transmission. There are the following types of telecommunication installations: telephone installations, intercom installations, common radio and TV antenna installations, internal television installations, loudspeaker installations, computer system installations, central clock system installations, etc. Signal installations include: electric bell installations, fire system installations, burglar alarm system installations and call installations in hotels and hospitals. As can be seen, signal and telecommunication installations are related and it is expected that further development of the technique will result in their integration. Power and lightning installations fall into the category of high-power installations, while telecommunications and signal installations are considered to be low-voltage installations.