Assertion: socket | /r/AtLocation | error
Facets:
value: often
type: TEMPORAL
Source sentences:
text: The socket (which is often, in error, also referred to as CEE 7/4) has a predominantly circular recess which is 17.5 mm deep with two symmetrical round apertures and two earthing clips on the sides of the socket positioned to ensure that the earth is always engaged before live pin contact is made.