Lignes électriques aériennes dépassant 1 kV en courant alternatif - Partie 2-15 : aspects normatifs nationaux (NNA) pour les Pays-Bas (basés sur l'EN 50341-1:2012)

Scope (ncpt) NL.1 Application to existing overhead lines This NNA is applicable for new high-voltage overhead lines only, not for existing lines in the Netherlands. If some planning/design or modification works on existing lines in the Netherlands has to be performed, the structural integrity shall be assessed based on the following generic building standards: NEN 8700 "Assessment of existing structures in case of reconstruction and disapproval - Basic Rules" and NEN 8701 "Assessment of existing structures in case of reconstruction and disapproval - Actions NEN 8700 and NEN 8701 shall be used in conjunction with EN 50341 part 1 and this NNA. NEN 8700 and NEN 8701 are based on NEN-EN 1990. EN 50341-1 "Overhead electrical lines exceeding 1 kV" is based on EN 1990. Where in NEN-EN 1990 and NEN-EN 50341 is referred to 'design' that term should be read in the context of the applying this standard to a review or assessment, by an analysis, as 'verification'. In case of construction re-design this must be understood as referring only to the part of the structure that is subject of the re-design. NL.2 Application to cables for telecommunication (ncpt) This NNA includes the requirements for application of plastic cables, with metal or without (ADSS) metal, for telecommunication, as well as for conductor/earthwire (groundwire) systems (e.g. wraparound,....) . NL.3 Application to mounting of telecommunication equipment (ncpt) This NNA is applicable for fixing of structural elements for telecommunication (e.g. dishes) , if mounted on power line supports (towers) , especially regarding the wind forces and ice loads on such fixed elements. NL.4 Applicability (ncpt) This NNA is applicable to overhead electrical lines exceeding 45 kV (A.C.) . To overhead electrical lines exceeding 1 kV (A.C.) but lower than 45 kV (A.C.) Part 1 is applicable without special national conditions (snc) or national complements (ncpt) .

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