Keskijännitealueilla

Keskijännitealueilla refers to medium voltage ranges in electrical power distribution systems. These voltage levels are situated between the high voltages used for long-distance transmission and the low voltages typically found in residential and commercial outlets. In Finland, where the term is commonly used, keskijännite typically falls within the range of 1 kilovolt (kV) to 36 kV.

The primary purpose of the keskijännitealueilla is to efficiently transport electricity from substations, where high transmission voltages are stepped down, to local distribution networks. This voltage level offers a balance between minimizing energy losses during transport and allowing for manageable equipment and insulation requirements. Within the keskijännitealueilla, electricity is distributed to various points closer to end-users.

Distribution substations then further reduce the voltage from the keskijännitealueilla to the low voltage levels required by most consumers, such as 230/400 volts. Electrical infrastructure within keskijännitealueilla includes overhead power lines and underground cables. These systems are designed with robust insulation and safety measures to handle the inherent risks associated with medium voltage. Maintenance and operation of these networks are specialized tasks requiring trained professionals due to the significant electrical potential involved.