Cenelec en 503411 overhead electrical lines exceeding. Nenen 50341215 is applicable for new highvoltage overhead lines only, not for existing lines in the netherlands. This nna includes the requirements for application of plastic cables, with metal or without adss metal, for telecommunication, as well as for conductorearthwire groundwire systems e. All bsi british standards available online in electronic and print formats. General requirements common specifications published by cenelec on december 1, 2012 general this european standard applies to new overhead electric lines with nominal system voltages exceeding ac 1 kv and with rated frequencies below 100 hz. Bs en 50341 3 overhead electrical lines exceeding ac 45 kv part 3. The scope of use of this nna for temporary lines shall be determined by the project specification. Vulvulina pennatula has raised sutures 1987 for genus. Aspects nnas for the netherlands based on en 503411.
Bovengrondse elektrische lijnen boven 45 kv wisselspanning deel 1. Cenelec en 5034 overhead electrical lines exceeding ac. Can for index beat ogro vlada manual longboard emonie. Specifies the general requirements that shall be met for the design and construction of new overhead lines to ensure that the line is suitable for its purpose with regard to safety of persons, maintenance, operation and environmental considerations. Overhead electrical lines exceeding ac 1 kv part 29. Cenelec en 50341215 overhead electrical lines exceeding.
En 50341 1 overhead electrical lines exceeding ac 1 kv part 1. For modernisations, reconstructions and refurbishments of the existing lines, the scope and the requirement to comply with pnen 50341 1, together with this nna, shall be determined by the project specification. Overhead electrical lines exceeding ac 1 kv sai global store. From north to south, they are 1 the navidad formation in the vicinity of the. The requirements of the standard are applied also for low voltage below 1 kv ac overhead lines. Set of national normative aspects published by bsi on april 25, 2002 a description is not available for this item. Bs en 503411, the main standard for overhead lines designed for ac 45 kv and above, has been written essentially as a standalone document, except in so far as reference is made to other standards. For modernisations, reconstructions and refurbishments of the existing lines, the scope and the requirement to comply with pn en 50341 1, together with this nna, shall be determined by the project specification.
In finland the standard en 503411 part 1 can only be applied using this nna en 5034127 containing national normative aspects for finland. This european standard applies to new overhead electric lines with nominal system voltages exceeding ac 1 kv and with rated frequencies. This euronorm is only applicable to new overhead lines and shall not be applied to maintenance, reconductoring, teeoffs, extensions or diversions to existing overhead lines unless specifically required by the project specification. Miocene foraminifera from the southcentral coast of chile jstor. En 50341 1 overhead electrical lines exceeding 1 kv is based on en 1990. Actions on overhead lines and load cases on supports have been classified. National normative aspects nna for great britain and northern ireland based on en 50341 1. Ben thic foraminiferal biostratigraphy of the south caribbean region. Nenen 50341218 is applicable for new overhead lines only and not for existing lines. Nenen 5034129 is only applicable to all new overhead lines above a. Replace pages 25 and 26 by the following and insert. The new european standard en 503411 1 provides a basis and general principles for the structural, geotechnical and mechanical design of overhead electrical lines in conjunction, in the case of steel structures, with eurocode 3.