An electrical switchboard is an important component in your home’s power distribution process. Every building has one, and yet a lot of home or business owners are unsure as to how they function and what they do.
We are electricians in North Melbourne that specialise in switchboard upgrades and repairs. So, find out more about what your switchboard does and when you should call experts like us to fix and upgrade your switchboard.
What is a switchboard and what are its main functions?
Switchboards are critical in any electrical process. They distribute electricity throughout homes and other buildings by safely dividing the main electrical power feed into smaller components, known as branch circuits.
These circuits then carry power to panels, transformers and other electrical equipment that further distribute it to devices that require it. The amount of current each circuit holds will depend on the amount of power each device needs to function adequately.
In short, you could say that switchboards start a chain reaction of power between electrical sources. Power is transmitted from the utility provider to a switchboard, which then relays it through a number of circuits before it’s transmitted to locations within a power grid’s reach.
Main switchboard structures
Switchboards consist of many electronic parts that can be difficult to navigate – unless you’re a professional, of course. Some main parts include:
Busbars
Busbars, or the bus, are comprised of aluminium or copper strips and transmit power from cable conductors to devices that are connected to the circuit.
Also, they perhaps take the lead spot in ensuring your safety. Busbars connect to a combination of electrical disconnects and breakers, known as relays or switchgear, which de-energise equipment and control faults.
Electrical panels
A switchboard consists of many electrical panels that redirect electricity.
Smaller buildings may have a singular electrical panel whilst larger buildings typically have multiple panels on which power control equipment is mounted.
Electrical panels also house switches that interrupt or control the flow of a circuit.
Protective devices
It’s not enough to simply distribute electricity. Switchboards are equipped with protective devices to ensure that your home is fully operational at a safe standard.
Each circuit is equipped with a circuit breaker or a fuse. This is triggered where large voltages are distributed through a single circuit. This prevents electrical overload in a singular location or appliance.
Different types of switchboards
Switchboards vary according to building size. That is, in smaller facilities, a service entrance switchboard may be installed. This means that power is directly fed from an electrical provider.
Large buildings require a more complicated system, to say the least. A switchboard in commercial buildings may receive indirect power from an upstream circuit breaker.
Do you require a switchboard upgrade?
Many old structures now require updated switchboard installations that are compliant with current safety standards.
If you experience a burning smell from your switchboard, flickering lights, constant fuse blows or circuit trips, it could be that your switchboard requires servicing.
Older switchboards also require replacement once they reach a certain age, depending on the laws in your specific area. If you are unsure of the legal standards, we can assist you with information for standards in North Melbourne.
Get in touch with O'Brien Electrical Thomastown for all switchboard queries. We are experts with over 60 years of experience that you can trust. Call us on (03) 9464 5591 or email [email protected].