Mains
Electricity
Fill
in the missing gaps in the sentences. The missing words are listed below. There
are the same number of words in the list as there are gaps in the sentences.
The UK mains supply is about 230
_______. Mains electricity can _____ if it is not used safely.
Most electrical __________ are
connected to the mains using a cable and a 3-pin plug.
To make them ______ to use the cable is
made up of :
· two or three inner cores of _________,
because _________ is a good ____________
· outer layers of flexible _________,
because _________ is a good ___________.
and a plug has :
·
a plastic or ________ case, because plastic and __________ are good ___________
·
pins made from ________, because ________ is a good conductor
·
a ______
·
an _______ pin
·
a cable ______.
The fuse in a plug should always be the
same as the one recommended by the _______________of the appliance. Appliances
with _______ cases are usually earthed.
When connecting an appliance to a 3-pin
plug:
·
the blue wire is connected to the ________
terminal;
·
the _______ wire is connected via a fuse to the live terminal;
·
the green/yellow wire (when fitted) is connected to the _______ terminal;
·
the cable should be secured in the plug by the _______ grip;
·
a _______ of the correct value (rating) should be in place.
Word list
safe brass brass volts appliances grip cable rubber rubber plastic plastic fuse fuse copper copper kill manufacturer earth earth insulators conductor insulator brown metal neutral