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New spin on concrete distribution poles for windfarms

Home Infrastructure Construction & Civils New spin on concrete distribution poles for windfarms

ROCLA has supplied 414 spun concrete distribution poles to the Enel Green Power developed Karusa and Soetwater windfarms projects in the Northern Cape. These are for an overhead line required to join into the Eskom Komsburg Station.

“Although our spun concrete distribution poles were specified for the project, we worked closely with the customer to ensure that our poles met their strict customised requirements,” said Kevin West, Sales Consultant for Rocla.

“We designed various poles to meet the differing lengths of the overhead line, these were designed for specific usage on the projects.”

Pole lengths varied from 15.6m to 19.2m for the overhead line. “Rocla supplied 146 distribution poles for the Karusa windfarm and 268 poles for the Soetwater windfarm. Each farm will have a total of 64 turbines running along the escarpment.”

“It was an exciting project to be part of as we believe windfarms are alternative sources of power and are an essential part of the energy mix for South Africa.”

West said spun concrete distribution poles are a cost-efficient solution because of small servitude requirements and are quick to install. They offer a durable, long-term solution with minimal maintenance.

Spun concrete poles are also exceptionally strong through 360 degrees, he said, thanks to not having the major and minor load axis that normal poles have. He added that the unique centrifugal manufacturing process used gives the Rocla spun concrete pole extra strength properties, not found in cast concrete poles.

They also offer a lifespan of over 50 years.

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