Matalajänniteverkkojen

Matalajänniteverkkojen, meaning low-voltage networks in Finnish, refer to the electrical distribution systems that operate at lower voltage levels, typically below 1000 volts AC or 1500 volts DC. These networks are the final stage in the electricity delivery process, supplying power to end-users such as homes, businesses, and industrial facilities. The voltage in these networks is significantly lower than in transmission and medium-voltage distribution lines, making them safer for direct use by consumers.

The primary function of low-voltage networks is to transform the medium voltage from the distribution substations into a usable voltage for everyday appliances and equipment. This is achieved through distribution transformers. The network itself usually consists of overhead lines or underground cables that branch out to individual buildings. Common voltage levels for residential and commercial use in Finland are 230/400 volts, where 230 volts is the phase-to-neutral voltage and 400 volts is the phase-to-phase voltage. The design and maintenance of these networks are crucial for ensuring reliable and safe electricity supply. They are subject to strict regulations and technical standards to minimize power outages and prevent electrical hazards.