There
are different types of electrical
services Sydney in
Australia and each type depends on the voltage of the system. This
page describes types of supply voltages and utility electrical
services.
Single-phase
three wires
This
is also known as the Edison system, centre-tapped neutral or
split-phase. This service is common in residential areas. The
electrical lines are mostly used for powering 120-volt plug loads and
lighting. They are also used to power 240-volts loads that are
single-phased such as electric range, air conditioner and water
heater.
Three-phase
four-wire wye
This
type of wiring is most common in commercial buildings. It is used for
powering 120-volt lighting, plug loads and smaller HVAC systems. In
large facilities, the voltage is normally 277/480 and it is used to
power larger HVAC loads and volt lighting.
Three-phase
three-wire delta
When
there is a Sydney
electricity emergency
in an industrial single-phase Australia, industrial electricians
should centre-tapped because it is likely to be a three-phase
three-wire delta that involves three-phase loads. Normal service
voltages are typically 240 volts, 400 volts, 480 volts, 600 volts and
higher.
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| Electrical Services Sydney |
Three-phase
four-wire
This
is an uncommon electrical service and it is also known as a high-leg
system. It is used in old manufacturing facilities that have
three-phase motor loads. They can also have some 120-volt
single-phase plug loads and lighting. This system is the same as the
three-phase three-wire delta but it has a centre tap on one of its
transfer winding and creates neutral for loads that are 120 volts.
Before calling electrical services Sydney in
Australia, it is necessary to know the type of electrical system you
have and call the relevant electrician. Some electricians are not
trained to handle systems that involve high voltage of electricity.
You should, therefore, shop around to find the right electrician
trained to handle the type of system you have.
