Matalajännitetasolle

Matalajännitetasolle refers to the voltage level used in electrical power distribution systems. In most countries, the nominal low voltage is defined as alternating current (AC) between 50 and 1000 volts. This is distinct from high voltage, which is used for efficient long-distance power transmission, and extra-low voltage, which is used for safety-critical applications like electronic devices and lighting.

Low voltage is the standard used for supplying electricity to homes, businesses, and most industrial facilities. It is considered safe enough for direct connection to appliances and equipment that people interact with daily. The transition from high voltage to low voltage occurs at substations through transformers, which step down the voltage to a usable level.

The specific low voltage value can vary by region and application. Common low voltage levels include 230 volts (used in Europe and many other parts of the world) and 120 volts (used in North America). These voltages are typically delivered through a system of conductors, including phase wires, a neutral wire, and often a protective earth wire. The choice of voltage is a balance between safety, the efficiency of power delivery, and the cost of equipment. Understanding matalajännitetasolle is fundamental to comprehending how electricity reaches end-users.