Enfasnät

Enfasnät is a term originating from Swedish that translates to "single-phase network." It refers to an electrical power distribution system where the power is delivered using a single alternating current (AC) voltage. This is in contrast to three-phase systems, which use three separate AC voltages that are phase-shifted from each other.

In most residential and small commercial applications, enfasnät is the standard. It typically involves two conductors: a live wire and a neutral wire. The voltage difference between these two conductors provides the power to operate appliances and devices. In some enfasnät configurations, a third conductor, the ground wire, is also present for safety purposes, but it does not carry current under normal operation.

The simplicity and lower cost of installation compared to three-phase systems make enfasnät suitable for many everyday uses. However, enfasnät is generally less efficient for transmitting large amounts of power over long distances or for operating high-power industrial machinery, where three-phase systems are preferred due to their ability to deliver more consistent power and their inherent efficiency advantages. The voltage levels in enfasnät systems vary by region, with common residential voltages being around 120V or 230V.