Editing Overhead power line (section)

== Classification by operating voltage ==
[[File:Łomża linia elektroenergetyczna napowietrzna.jpg|thumb|172px|High- and medium-voltage power lines in [[Łomża]], Poland]]
[[File:Anchor pylon of high-voltage overhead power line 750 kV.jpg|thumb|172px|Extra high-voltage overhead line 750 kV]]
Overhead power transmission lines are classified in the electrical power industry by the range of voltages:
* Low voltage (LV) – less than 1000 Volts, used for connection between a residential or small commercial customer and the utility.
* Medium voltage (MV; distribution) – between 1000 Volts (1 kV) and 69 kV, used for distribution in urban and rural areas.
* High voltage (HV; [[subtransmission]] less than 100&nbsp;kV; subtransmission or transmission at voltages such as 115&nbsp;kV and 138&nbsp;kV), used for sub-transmission and transmission of bulk quantities of electric power and connection to very large consumers.
* Extra high voltage (EHV; transmission) – from 345 kV, up to about 800 kV,<ref name=TGonen>
 {{cite book|  author = Gönen, T. |  title = Electrical Power Transmission System Engineering: Analysis and Design |  publisher = CRC Press  | isbn = 9781482232233
|edition=3rd |  url = https://books.google.com/books?id=6KbNBQAAQBAJ | year = 2014 | pages = }}</ref>{{page needed|date=June 2018}} used for long distance, very high power transmission.
* Ultra high voltage (UHV) – higher than 800 kV. The ''[[Financial Times]]'' reported UHV lines are a "game changer", making a global electricity grid potentially feasible.  [[State Grid Corporation of China|StateGrid]] said that compared to conventional lines, UHV enables the transmission of five times more power, over six times the distance.<ref>{{Cite news
|url= https://www.ft.com/content/2aedab32-6aa1-11e8-8cf3-0c230fa67aec
|title= China's global power play 
|work= [[Financial Times]]
|first= James
|last= Kynge
|date= 8 June 2018
|accessdate=10 June 2018
|url-access=registration}}</ref>