Overhead electrical lines exceeding AC 1 kV - National Normative Aspects (NNA) for Romania (based on EN 50341-1:2012)1 Scope 1. 1 General RO. 1 General This Part 2 24 gives the requirements for planning, design and construction of overhead electrical lines with nominal voltages exceeding A. C. 1 kV operating at 50 Hz frequency. The present Part 2 24 is not applicable for existing overhead electrical lines unless specifically required by Project Specification. The power installations of overhead lines, that are in different stages of design or construction, can be

other than hydrofluoric acid

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EN 15316-4-8