If you run a business that uses a lot of electrical equipment, you may have heard the term three phase power. But what exactly is it, and does your business actually need it?
For many commercial premises, a standard electrical supply does the job perfectly well. But as a business grows, takes on new machinery or starts using more equipment, the existing supply may no longer be enough.
That’s where three phase power can come in.
What Is Three Phase Power?
Most homes in the UK use a single-phase electricity supply, which is generally more than enough for everyday things like lighting, appliances and sockets.
Commercial properties can be a little different.
Three phase power uses three electrical phases instead of one, allowing it to handle larger electrical loads more effectively. This makes it particularly useful for businesses running machinery, motors and other high-powered equipment.
You’ll often find three phase systems in workshops, warehouses, factories, commercial kitchens and other premises where there’s a lot of equipment running throughout the day.
And don’t worry, having three phase power doesn’t mean everything in the building suddenly needs to be three phase. Your electrical installation can still have ordinary single-phase circuits alongside equipment that requires a three phase supply.
Why Do Businesses Use Three Phase Power?
The simple answer is that some businesses just need more power.
As your business grows, you might add new equipment, increase production, extend your premises or simply have more electrical systems running at the same time.
A three phase electrical supply can help support those increased demands.
It Can Handle Larger Equipment
Some commercial machinery is specifically designed to run on a three phase supply.
This is common with motors, workshop machinery and other larger pieces of commercial or industrial equipment.
If you’re thinking about buying new machinery, it’s always worth checking the electrical requirements first. The last thing you want is for a shiny new piece of equipment to arrive only to discover your current electrical supply can’t support it.
It Helps With Higher Electrical Demand
Think about everything that might be running in a busy commercial property.
You’ve got lighting, computers, heating, ventilation, machinery, kitchen equipment, refrigeration, security systems and plenty more.
Individually, these may not be a problem. Together, they can create a significant electrical demand.
Three phase power can give businesses the capacity they need to keep everything operating as it should.
It Can Help You Plan for Growth
Your electrical requirements today might look very different in a few years’ time.
Maybe you’re adding more machinery. Perhaps you’re extending the workshop, increasing production or moving into a larger unit.
Whatever your plans, it’s worth thinking about the electrical side early.
Having your electrical installation assessed before expanding can help you understand whether your current setup will cope with what you have planned.
What Types of Businesses Use Three Phase Power?
It’s easy to assume three phase power is only for huge factories, but that’s definitely not the case.
It can be used in all sorts of commercial settings, including:
- Workshops and garages
- Warehouses
- Manufacturing and engineering businesses
- Commercial kitchens
- Agricultural buildings
- Larger offices and commercial units
- Retail premises
- Businesses using motors or specialist machinery
Every business is different, so whether you actually need three phase power will depend on your property, equipment and overall electrical demand.
That’s why it’s always best to have your requirements properly assessed rather than assuming you need an upgrade.
When Might You Need to Upgrade?
So, how do you know when it’s time to start thinking about three phase power?
Here are a few common situations where it’s worth speaking to an electrician.
You’re Buying New Machinery
Planning to install a new piece of equipment?
Check its electrical requirements before it arrives.
If it requires a three phase connection and you don’t currently have one available, electrical work may need to be completed first.
Getting an electrician involved early can make the whole process much smoother.
Your Business Is Expanding
Growth is great news, but it can put extra pressure on your electrical installation.
Whether you’re extending your premises, adding workstations or installing additional machinery, it’s worth checking that your existing electrical system has enough capacity.
This also gives you the opportunity to plan for future requirements rather than only thinking about what you need right now.
Your Current Supply Is Struggling
If electrical problems start appearing when lots of equipment is being used, don’t simply assume you need a bigger supply.
There can be several possible causes.
Professional fault finding and electrical testing can help identify what’s actually going on and whether the issue relates to the supply, circuits, distribution equipment or something else.
From there, your electrician can recommend the right solution.
You’re Already Upgrading Your Electrics
If you’re refurbishing your premises or already planning significant electrical work, it can be a great time to look at the bigger picture.
Will the current installation still meet the needs of the business in a few years?
Could more machinery be added?
Are you planning to expand?
Thinking about these questions now could save you from having to make further changes later.
What’s Involved in Upgrading to Three Phase Power?
A three phase upgrade isn’t quite as simple as changing a socket.
The first step is usually assessing the property and understanding how much power the business currently uses, as well as any future requirements.
Depending on the existing supply and installation, the project may involve coordination with the relevant electricity network or supplier as well as electrical work within the property.
This could include changes to distribution equipment, new circuits, cabling and connections for machinery.
Once the work is complete, the installation should also receive the appropriate electrical inspection and testing.
Do You Actually Need Three Phase Power?
Not necessarily.
It’s important to remember that three phase power isn’t automatically better simply because your property is commercial.
The right electrical setup depends on what your business actually needs.
Before making any major changes, an experienced electrical contractor can assess your existing installation, look at the equipment you’re using and discuss any plans you have for the future.
You might need an upgrade — or your existing supply might be perfectly suitable.
Either way, you’ll have a much clearer idea of where you stand.
Planning New Equipment? Speak to an Electrician Early
If there’s one tip we’d give any business investing in new machinery, it’s this: don’t leave the electrical side until the equipment arrives.
Finding out what power the equipment needs beforehand can save a lot of hassle.
An electrician can check whether your existing installation is suitable, identify any work that’s required and make sure everything is ready for installation day.
It means fewer surprises and a much smoother project.
Need Help With Three Phase Power?
At C.G. Electrical Services, we help businesses with a wide range of commercial electrical work, including three phase electrical work, distribution board upgrades, fault finding, electrical testing, lighting upgrades and general commercial electrical installations.
Whether you’re planning new machinery, expanding your premises or simply aren’t sure whether your current electrical setup is up to the job, we’re happy to take a look and talk you through your options.
If you’d like to discuss three phase power for your business, get in touch with the C.G. Electrical Services team.
