lågspänningsnätet

Lågspänningsnätet, often referred to as the low-voltage grid, is the final stage in the distribution of electricity to consumers. It typically operates at voltages of 230 volts in single-phase and 400 volts in three-phase systems within Sweden. This is the voltage level that most household appliances and small businesses utilize directly from their power outlets. The low-voltage grid is fed by medium-voltage distribution substations, which step down the higher voltages from the transmission and regional distribution networks to a level suitable for local delivery.

The infrastructure of the low-voltage grid comprises a network of underground cables and overhead lines, along with numerous local transformers. These transformers are crucial for reducing the medium voltage further to the usable low voltage. They are often installed on poles or within small cabinets on streets. The grid is designed to be accessible and flexible, allowing for connections to individual homes, apartment buildings, and smaller commercial establishments. Safety regulations are paramount in the design and maintenance of the low-voltage network due to its proximity to the public. Regular inspections and upgrades are conducted to ensure reliability and prevent outages. The efficiency of the low-voltage grid is important for minimizing energy losses during the final delivery to the end-user.