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Hitachi Energy and National Grid in the UK have successfully energised a pilot project replacing SF6 in installed high voltage gas-insulated lines with an eco-efficient fluoronitrile-based gas mixture. This retrofill solution is part of Hitachi Energy’s EconiQ™ portfolio which is designed to deliver better environmental performance compared to conventional solutions.

Early in September Eskom reported a shortage of mini-substations which is delaying its replacement of damaged infrastructure in Gauteng. The electricity utility said over recent months it had recorded an exceptionally high number of failed mini-substations due to the network overloading resulting from illegal connections, meter bypasses and tampering, unauthorised operations on the electricity network, and vandalism and theft of electrical equipment.

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