extension lead به انگلیسی

From Longman Dictionary

exˈtension ˌlead British English, extension cord American English noun [countable]
an additional piece of electric wire that you attach to another wire to make a very long one
یک تکه سیم برق اضافی که به سیم دیگری وصل می کنید تا یک سیم بسیار طولانی بسازید

Example
I bought an extension lead for the aerial point
You ask for an extension lead
The socket of course was out of reach, but again the case provided an extension lead
A very short length of cable is supplied with the machine, and this proved annoying unless an extension lead was used
The pictures are gone off the walls-a kettle on a long extension lead is on the bare table behind