transmission and distribution of electricity Flashcards
what does power station produce
alternating current
state the safety components for wiring at home
earth wire, lighting conductor, fuse, switch
what color is the earth wire
yellow and green stripes
what does the fuse do when the electric current flowing exceeds the limit
the wire heats up and melts
what does the main switch do in the fuse box
controls the total current flowing through the circuit in the house
how much does a single phase wiring can take
below 10kW or 50A
what is the impact on residential areas living close to pylons
an electromagnetic field is produce by high voltage alternating current and and can be detected in the surrounding area
where can three phase wiring can be used
commercial and industrial areas
name the types of fuses
catridge fuse and replaceable fuse
fuse is an electrical safety device that is used in what
circuits and electrical appliances
the fuse used in electrical appliances should have a value that is
slightly higher than the maximum current
what fuse should a hair dryer that has 10.32A use
13A
why is earth wire important in the safety of electrical appliances
to prevent an electric shock
the voltage of the alternating current is highest at the (power station/National Grid Network/branch station)
National Grid Network
why do we use pylons
the electrical energy from power stations can be sent to any areas without any interruptions
