Norm

NEN-EN 50341-2-7:2015 en

Bovengrondse hoogspanningslijnen voor wisselspanning hoger dan 1 kV - Deel 2-7: Nationale normatieve aspecten (NNA) voor Finland (op basis van EN 50341-1:2012)

61,30

Over deze norm

Status Definitief
Aantal pagina's 27
Commissie Hoogspanningslijnen en isolatoren
Gepubliceerd op 01-10-2015
Taal Engels
In Finland the standard EN 50341-1 (Part 1) can only be applied using this NNA (EN 50341-2-7) containing National Normative Aspects for Finland. The requirements of the standard are applied also for low voltage (below 1 kV AC) overhead lines. The requirements of the structural design are applicable also for DC overhead lines, where the electrical requirements are given in the Project Specification. This standard is applicable for new overhead lines only. Overhead lines complying with the mechanical and electrical requirements of its original date of construction can be operated and maintained, if they do not cause obvious danger. The reparation and overhaul of lines can be done according to the previous requirements. Reparation means that a component which has been damaged is substituted with a similar new one. Overhaul means a wider improvement of the line for extending its lifetime. The basic structure remains same as before. This standard should be used for all modification works on existing lines. In modification works earlier norms and standards may also be used. In that case it shall especially be verified that changes in actions do not have significant impact on the loads of lines. Modification work means e.g. relocation of some supports or an extension to a line when this supplement has been taken into account in the original design, e.g. addition of a circuit or changing of the conductors to existing supports.

Details

ICS-code 29.240.20
Nederlandse titel Bovengrondse hoogspanningslijnen voor wisselspanning hoger dan 1 kV - Deel 2-7: Nationale normatieve aspecten (NNA) voor Finland (op basis van EN 50341-1:2012)
Engelse titel Overhead electrical lines exceeding AC 1 kV - Part -2-7: National Normative Aspects (NNA) for FINLAND (based on EN 50341-1:2012)

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