EN 2235:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.ODãþHQLLuft- und Raumfahrt - Ein- und mehradrige geschirmte und ummantelte elektrische LeitungenSérie aérospatiale - Câbles électriques, mono et multiconducteurs, blindés et gainésAerospace series - Single and multicore electrical cables, screened and jacketed49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2235:2006SIST EN 2235:2009en,de01-junij-2009SIST EN 2235:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2235June 2006ICS 49.060 English VersionAerospace series - Single and multicore electrical cables,screened and jacketedSérie aérospatiale - Câbles électriques, mono etmulticonducteurs, blindés et gainésLuft- und Raumfahrt - Ein-und mehradrige geschirmte undummantelte elektrische LeitungenThis European Standard was approved by CEN on 6 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2235:2006: ESIST EN 2235:2009

* And all parts quoted in this standard. 1) Published as AECMA Prestandard at the date of publication of this standard. SIST EN 2235:2009

The cable covering is calculated using the following formula:  for spirals: U = π (D + d) and S = π (D + d) tan α F = U’ Z / U = n d Z / [π (D + d) sin α] β = F × 100 (%)  for braids: U = π (D + 2d) and S = π (D + 2d) tan α For braids, the filling factor F and coverage β, taking into account both braiding directions and a symmetrical braiding pattern are: F = (U’/ U) (Z / 2) = {n d / [π (D + 2d) sin α]} (Z / 2)
and
β = F (2 − F) × 100 (%) where: S = lay length of screen in mm D = diameter under screen in mm (for cables with two or
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