Power poles are easy to overlook until one needs replacing, starts leaning, or sits directly in the way of a building project. 

This guide looks at the main types of power poles used in Australia, how they differ and when specialist electrical work may be needed.

What are The Main Types Of Power Poles in Australia?

Across Australia, poles come in several materials and designs, and the right choice depends on factors such as location, exposure, network requirements and whether the pole is part of the public electricity network or privately owned.

For homeowners, builders and property managers, knowing the difference can make maintenance and electrical work much easier to plan. These are the primary types of poles used across buildings all over Australia:

Timber Power Poles

Timber remains familiar in suburban streets, regional areas and rural properties. It is relatively straightforward to transport and install, which has helped make it a longstanding choice for overhead electricity infrastructure.

Treated timber can provide many years of service, but the pole still needs attention. Moisture, termites, decay, bushfire exposure and physical damage can all affect its condition. The section closest to ground level deserves particular attention because deterioration in this area can be difficult to spot from a distance.

If a timber pole on private property looks damaged, leaning or unusually soft around its base, it should be assessed rather than assumed to be safe.

Concrete Power Poles

Concrete is a popular choice where a pole needs to withstand conditions that can be hard on timber. Termites cannot eat it, and it will not rot in the same way a timber pole can. Its resistance to fire is another reason concrete can make sense in certain locations.

There is a trade-off, though. Concrete poles are heavy. Getting one onto a property and putting it into position can require considerably more equipment than a timber replacement. That can affect the cost and logistics of a replacement, particularly on a difficult-access site.

Steel Power Poles

Steel gives you a strong structure without the bulk of a concrete pole, which can be useful on sites where available space is limited. You will see steel poles in a range of settings, including around roads, commercial premises and industrial properties.

The steel itself is not the only thing to consider. Most poles rely on a protective coating to keep moisture away from the metal. If that coating is scratched, cut or otherwise damaged, the exposed area can begin to corrode.

This deserves extra attention on coastal properties. Salt in the surrounding environment can make corrosion more aggressive, so a pole that looks sound should still be checked from time to time.

Composite or Fibreglass Power Poles

Composite or fibreglass poles are a newer option used in some parts of Australia, particularly where weight, corrosion resistance or difficult access matters. They are lighter than concrete and steel, which can make transport and installation easier in remote or awkward locations.

They are also resistant to termites, rot and corrosion, which can make them useful in coastal, bushfire-prone or high-moisture environments. However, the trade-off is that they can have a higher upfront cost, so they may be used selectively. 

Stobie poles

Stobie poles are one of the more recognisable features of South Australia's electricity network. They were developed in 1924 by James Cyril Stobie and use steel components separated by concrete. The design was developed partly in response to South Australia's shortage of suitable timber for electricity poles.

The combination gives Stobie poles strong resistance to termites and contributes to their durability. Government information identifies them as a standard part of South Australia's distribution infrastructure, alongside other forms of electrical support structures.

Their use is particularly significant in South Australia. The state's electricity distribution network included more than 647,000 Stobie poles in 2023, according to the Technical Regulator's annual report.

What is The Difference Between Distribution, Transmission and Private Poles?

A pole can also be classified according to what it does rather than what it is made from.

• Transmission structures carry electricity at high voltages over long distances, sometimes across hundreds of kilometres.
• Distribution poles support the local network that supplies electricity to communities, homes and businesses.
• Service poles and lines form part of the connection between the distribution network and a customer's property.
• Private poles can be located within a property's boundaries and may be the responsibility of the property owner.

Ownership and maintenance responsibilities are not identical across Australia. They can depend on the electricity distributor, the location of the pole and the particular connection arrangement. 

If you own a property with a private pole, check with the relevant network operator before assuming who is responsible for a repair or replacement. 

When Do You Need A Level 2 Electrician?

Power pole work can involve the electricity network itself, so a standard electrical contractor may not be authorised to carry out every type of connection work.

In NSW, Level 2 Accredited Service Providers are authorised for specific connection services, including constructing or changing service lines between the distribution system and the point of connection. They can also work on certain customer-owned network devices.

This can become relevant when you are:

• Installing or replacing a private power pole
• Connecting a new property to the electricity network
• Modifying an existing service line
• Dealing with damaged overhead supply lines
• Upgrading a property's electrical supply
• Responding to certain network-related defects

For property owners dealing with private poles, damaged service lines or supply upgrades, a qualified Level 2 electrician in Bankstown may be required rather than a general electrician.

NSW's Service and Installation Rules also apply to connections between customers and the electricity distribution network, so the work needs to follow the requirements relevant to the local distributor. AJB Electrical Group is one example of a local Sydney electrical contractor providing Level 2 services for property connections, private poles and service-line work.

Takeaway

There is no single power pole that suits every Australian property. Timber, concrete, steel, composite and Stobie poles each have different characteristics, while the purpose of the structure and ownership arrangement can be just as important as its material.

Before replacing or modifying a pole, establish who owns the infrastructure, identify the relevant electricity distributor and determine whether the proposed work requires an accredited service provider. 

FAQs

Can Power Pole Work Affect Fencing And Automatic Gates?

Yes. If you are putting up a new fence and adding an automatic driveway gate, there is an electrical side to the job as well. The gate motor, intercom, lighting and access-control equipment all need a suitable power supply.

A leading fencing contractor such as Boresi Fencing can take care of the fence and gate itself. The electrical work is a separate job and should be carried out by a licensed electrician where required.

What Should You Check When Maintaining a Private Power Pole?

A private pole can look perfectly fine from the street while having a problem lower down or around its fittings. This is one reason a closer inspection matters, particularly with older poles. Keep an eye out for things such as:

• A pole that has started to lean
• Cracks, splits or sections that appear damaged
• Timber that looks soft or deteriorated near the ground
• Termite activity
• Rust or corrosion on steel parts
• Damage after a storm, fire or vehicle accident
• Branches or other vegetation getting too close to overhead lines

Important: Overhead electrical equipment can still be hazardous even when there is no obvious sign that electricity is flowing.