Working Near Powerlines – Everything You Need To Know

An electrician with a level 2 licensing is the only person who is allowed to work on overhead powerlines. This is because they have trained longer than regular electricians and have gained the qualifications to work on more advanced systems.

These systems are what transmits power over distances through towers or poles. They are often lower-cost methods to transport electrical power and come in many different materials. Wood, steel, aluminium, concrete or reinforced plastics are used for the pole where aluminium or copper are applied for the wires.

When working on the overhead powerlines each electrician will follow the Safe Work Australia and WorkCover NSW Codes of Practice. Additionally, knowing the requirements which Ausgrid has placed when working near powerlines are also kept in mind when operating.

For an overhead powerline which is lower in its voltage levels, less than 1,000V, here are the general rules which electricians follow:

• Utilising all their knowledge and skill gained from the ‘WorkCover Code of Practice – Work near Overhead Power Lines’
• Cable covers are used to temporary cover low voltage mains which are directed by the Network Operator. The authorised electrician will complete this while extending them over 5m from the construction site. The electrician purchases them and are not used for reliable insulation but for clarity that the area should be cleared.
• The cable covers, which are temporary, must be inspected each day there is work. Likewise, if they have been moved from their original spot them the Network Provider will need to move them in the correct place.
• 3,000mm is the minimum safe distance when working with low voltage, which should be followed during the whole process. Though, if a risk assessment with non-conductive tools has happened then the minimum distance is 1,000mm. Scaffolds, cranes and operating plants are all excluded from this, however.
• If the distance cannot be maintained then the mains would be isolated during the work. But if the mains being isolated is a negative step then Ausgrid would explore other options. The electrician will pay for the expenses of moving the main if it needs to be done.

Overhead powerlines that are high in voltage, such as over 1,000V, then there are additional steps carried out, including:

• Working with the ‘WorkCover Code of Practice – Work near Overhead Power Lines’ is also included in the process
• For cranes and any other mobile plants that are used, a minimum distance of 3,000 – 8,000mm will need to be maintained. If low-conductive tools are used, as well, and a safety assessment has happened and is successful, the minimum distance can be from 1,000 – 2,000mm. Also, cranes, scaffolding and operating other mobile plants are not included in this.
• In regards to the mains, when the distance rules are followed they should be isolated as well. Similarly, when this is actually a detriment to the task then Ausgrid will find other alternative paths. The electrician will have to pay for the additional isolation movements