Editing Electric power distribution (section)

====220–240 volt systems====
Most of the world uses 50&nbsp;Hz 220 or 230 V single phase, or  400&nbsp;V three-phase for residential and light industrial services. In this system, the primary distribution network supplies a few substations per area, and the 230&nbsp;V / 400&nbsp;V  power from each substation is directly distributed to end users over a region of normally less than 1&nbsp;km radius. Three [[live wire (electricity)|live (hot) wire]]s and the [[neutral wire|neutral]] are connected to the building for a three phase service. Single-phase distribution, with one live wire and the neutral is used domestically where total loads are light. In Europe, electricity is normally distributed for industry and domestic use by the three-phase, four wire system. This gives a phase-to-phase voltage of {{nowrap|400 volts}} [[Three-phase electric power#Three-wire and four-wire circuits|wye]] service and a single-phase voltage of {{nowrap|230 volts}} between any one phase and neutral.  In the UK a typical urban or suburban low-voltage substation would normally be rated between 150&nbsp;kVA and 1&nbsp;MVA and supply a whole neighbourhood of a few hundred houses. Transformers are typically sized on an average load of 1 to 2&nbsp;kW per household, and the service fuses and cable is sized to allow any one property to draw a peak load of perhaps ten times this.
For industrial customers, 3-phase {{nowrap|690 / 400 volt}} is also available, or may be generated locally.<ref>{{cite web  | url = https://www.en-powered.com/blog/the-bumpy-road-to-energy-deregulation  | title = The Bumpy Road to Energy Deregulation  | publisher = EnPowered  | date = 2016-03-28  | access-date = 2017-04-07  | archive-date = 2017-04-07  | archive-url = https://web.archive.org/web/20170407145323/https://www.en-powered.com/blog/the-bumpy-road-to-energy-deregulation  | url-status = dead  }}</ref> 
Large industrial customers have their own transformer(s) with an input from 11 kV to 220 kV.