Land Use

Land Use

Landowners and occupiers should be aware that raising ground levels underneath powerlines in order to gain a flat surface will further reduce minimum clearance distances. This activity is prohibited by law.

The construction of any permanent structure including but not limited to sheds, silos, fences, swimming pools, haystacks or loading-bays near powerlines is also prohibited.

For further information on easement responsibilities for landowners and occupiers, please visit vegetation management and building clearance restrictions.

Never work on top of a vehicle or its load, or any recreational vessels, either underneath or near a powerline – as you may inadvertently reduce the minimum clearance levels which may result in electrocution.

Remember that a new piece of equipment may be higher and present risks that an older one did not.

Remember also that powerlines have the potential to sag lower in hot weather. These abnormal operating conditions, which include windy weather, will reduce clearance both under and beside powerlines.

As a guide, the measurement between a 132,000 Volt powerline (conductor) operating at maximum capacity in extreme weather – and the ground – is 6.7 metres (1)

(1) South Australian Electricity (General) Regulations 1997

Note that lightning strikes during storms, may also cause voltage surges.

The Department of Transport, Energy and Infrastructure (DTEI) provides additional information on powerlines and vegetation clearances as well as trees and powerlines. The Office of the Technical Regulator also provides guidance on building near powerlines.

Crop Aerial Application

Landowners or occupiers who contract low-flying aerial applicator services have a duty of care to provide pilots with a comprehensive map of the treatment area and property, which includes details of any powerline hazards.

All powerlines on your property and within the treatment area must be displayed on the map. Powerline voltage must also be noted.

This essential information will assist pilots with their risk assessments and in formulating a safe flight/work plan.

The Aerial Application Pilots’ Manual, published jointly by the Aerial Agricultural Association and the Civil Aviation Safety Authority describes safety procedures for pilots of light aircraft working around powerlines.