Installing Three Phase Power For Your Business
How Much Will A 3 Phase Power Installation Cost?
This is ALWAYS the first Question We are Always Asked and for a business wanting to upgrade their power supply it does need to be cost effective!
The cost of a 3 phase supply upgrade typically ranges from $5600-$8000, depending on the project requirements. ( Pricing was determined with the current factors in 2024)
One of the biggest influencing cost factors is the amount of trenching required.
If your project involves installing an electricity supply pit, the cost can range from $6000-$10,000. Our experienced electricians can handle the application process and coordinate with your chosen electricity provider for the pit installation.
Sometimes, there are unforeseen difficulties which influence cost. Our experienced electricians will always assess the situation prior to commencing any works. However, with an underground supply, it is harder to assess the scope of works and there are situations where unforeseen difficulties arise.
Three Phase Installation Electricians
If you need to upgrade to a 3 phase power supply, you are in the right place!
Our electricians can quickly advise you of the costs, come up with the plan and then arrange the installation.
Changing to an underground electricity supply looks better and it has improved safety. It eliminates the risk of overhead cables being affected by falling trees and prevents animals like possums from accessing the roof.
How much does an underground 3 phase upgrade cost for a newly built home or business?
Upgrading your underground supply to three phase in a newly built home or business generally costs between $3,500 and $5,000. The pricing will be determined by by the amount of trenching required. Generally, it is more cost effective to complete three phase upgrade prior to any landscaping and driveways are completed. This helps lower costs as it saves you from extensive landscaping and concreting a second time.Three Phase Power Connection For Your Business
Electricity is essential for businesses to operate, and the three-phase power connection is an option that some businesses invest in.
This type of power connection offers a reliable, cost-effective way to provide electricity to businesses of all sizes. But what exactly is a three-phase power connection and how can it benefit Australian businesses?
What Is A Three Phase Power Connection?
A three phase power connection is a type of electrical wiring configuration used for industrial and commercial applications. It involves connecting three wires to the distribution network, providing an alternating current with a particular voltage level. This enables them to draw three times more power than would be available from a single-phase connection.
The advantages of using a three-phase connection include increased efficiency, improved safety, reduced maintenance costs, and greater reliability.
Efficiency is improved because the three wires are connected in such a way that they act as if they were one wire with higher current capacity.
Safety is enhanced because this configuration reduces the risk of short circuits and electrical shocks due to its use of multiple connections.
Maintenance costs for your equipment or appliances can be reduced as three phase power stops fluctuations in the power supply which damages a motor over time.
At times a three phase connection will be a necessity due to the power load required by some equipment.
There are steps involved in getting it approved and also installed so it is an expense that a business owner has to weigh up and take into consideration when moving into a new commercial premises.
Advantages Of Three Phase Power Connections For Melbourne Businesses
It offers several advantages to make it appealing choice for many businesses.
For starters, a three-phase power connection provides greater power capacity for larger businesses that require a greater amount of energy.
The appliances or equipment will last longer as there is no variations or vibrations from fluctuating power amounts
Additionally, the three-phase configuration increases safety as it reduces potential risks system overloads associated with single-phase connections.


Disadvantages Of Three Phase Power Connections
You know it is an expensive undertaking to have it installed.
The first step is to see if getting 3 phase to your premises is possible. Your electricity supplier needs to be contacted to see if it is possible for your location.
You will then have to gain approvals from the landlord of the commercial premises as you are making a change to the building.
You will also have to check your commercial lease to see if the new electrical set up has to be removed when your lease is up.
Your electrician will be able to guide you as the steps to take and keeping the work complaint to meet each states regulations.
Furthermore, installation can also be more challenging and require additional equipment. This can add to the overall cost significantly.
The Costs Associated With Installing A Three Phase Power Connection
The costs associated with installation can depend on the size of new switchboard installation, the rewiring and the cost of labor from a level 2 electrician and any costs associated with getting approvals and the new connection from your electricity supplier. Depending on these factors, costs could range from four thousand to ten thousand plus.
Furthermore, there are also ongoing maintenance needs to be taken into account when budgeting for a three phase power connection.
Doing your research and getting quotes from several electricians can help you make sure that you’re getting the best deal possible.
State Government Regulations
When it comes to installing a three phase power connection, there are a host of government regulations businesses must abide by in Australia.
These regulations include giving notice before work begins, as well as obtaining the right permits and inspections.
Moreover, it’s also important to make sure the connection is designed and installed correctly in order to meet safety and legal requirements.
Businesses need to be aware that there can be hefty fines for non-compliance with these regulations. It’s essential to take into account the long-term maintenance costs associated with ensuring a safe and legal connection as well.
Understanding the regulations and knowing how to comply with them is an important part any businesses.

Professional Electrical Installation
Professional installation of any electrical is key. From correctly assessing the power requirements of the business to careful placement of wiring and cables, it’s essential that a qualified level 2 electrician is brought in. This way, businesses can ensure their electrical connections are safe and secure.
Having the right electrician install your three phase power connection also guarantees that the job is done right. Not only will you avoid any costly mistakes due to improper installation, but you’ll know that the setup meets all necessary standards for quality and safety. With the right expertise, an experienced electrician can complete the job quickly and efficiently.
Our Commercial Electrical Services
Electrx also offers the following commercial electrical services throughout western suburbs of Melbourne
- General electrical installation, repair and maintenance
- All lighting and electrical requirements
- All electrical requirements for commercial buildings
- Electrical safety inspections
- Scheduled general electrical safety inspections
- Rewiring of busilings and workshops
- Installation of interior and exterior lighting
- Electrical outlets
- Switchgear upgrades, installation, repair and maintenance
- Installation of generator transfer switches
- Emergency repair and maintenance
How To Maintain And Test Three Phase Power Connections
Maintaining and testing all electrical systems is essential for businesses operating in Australia. It is vital ensure that all safety regulations are followed when dealing with all electrical systems.
Regular testing is also crucial for verifying that the connection is working as intended. This can involve checking for any fluctuations in current or voltage, or testing for short circuits or other issues that could lead to an outage. The most effective way to test a three phase power connection is to have regular test and tagging done and an electrical maintenance schedule.
The Wrap Up
Three phase power connections offer businesses many advantages such as increased efficiency and but the new power connection can be expensive and it must be available in your location and be able to be installed at your workplace
Get in touch with the team at Electrx and we can help you a quote and what requirements you need.