Overhead electrical lines exceeding AC 1 kV. National Normative Aspects (NNA) for Slovenia (based on EN 50341-1:2012)
Overhead electrical lines exceeding AC 1 kV. National Normative Aspects (NNA) for Slovenia (based on EN 50341-1:2012)
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1.1 General (A-dev) SI.1 Definition of the new overhead power line A new overhead power line is defined as a functionally completed installation for the transmission of electricity between points A and B (i.e. the new construction of all conductors, their supports together with foundations, earthing system, insulators, accessories and fittings). The overhead lines currently being designed (starting of a design to obtain a building permit) or being under construction may be completed in accordance with the standards in force at the time of the start of the design or construction of the overhead line. In the case of maintenance and renovation works with major structural changes to overhead lines, this standard shall be applied in accordance with the project specification. E.g., for the construction of new support on new foundations in the existing overhead line, the provisions of this standard shall be applied to support and foundations but for the other elements of the overhead line don’t need to be complied with this standard. For the design and construction of DC overhead lines, the requirements of this standard are also applicable to the design of structures, but not for electrical requirements, which have to be specified in the project specification.
1.2 Fiel...
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