6859/1 International Standard (ISO INTERNATIONAL ORGANIZATION FORSTANDARDIZATION+MEXAYHAPOAHAR OPIAHW3AUMH TO CTAHAAPTW3AUWM-ORGANISATION INTERNATIONALE DE NORMALISATION Aircraft Proximity switches Part 1:General requirements Aeronautique-Detecteursdeproximite-PartieF:Exigencesyenerates Firstedition=1982-02-01 ISO16859/1-1982（E) UDC621.316.54:629.7 Ref.No.1SO6859/1-1982(E) Descriptors : aircraft industry, aircraft equipment, electric switches, definitions, specifications, tests, testing conditions. Pncebasedon 19pog88 Foreword iso (the Interhatiorial Ofgarization for Sitaiuardization)is a woridwide federation of national standards institutes (isO member Buules). The work of Gevelopinig Imer- national Stanaards is carried out uirough iso techinical cornrmiftees. Every rrieriiber body initerested im a subject Tor which a technical committee has beerr set up hias trie rigntto be represented on that committee. Internatiorial organizatioris,govermertal and non-govermmenital, in liaison with iso, aiso take part ini trie work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptanceas International Standards by the Iso Council. Standard is06859/1wasdevei8pedByTechnical international Commitee isOrTcZ0,Aircraftand spaceveicies,andwas Cifculatedtothie fniernberbocfesin Septembcr1980. it has been approved by the member bodies of thefoiiowirig counitries : Austria Germany, F. R. SouthAffica, Rep:of Beigium italiy Spain Brazil uedec Sweden Canada Netherlands UnitedKingdorn Czechoslovakia Romania USA The member body of thefoliowirig counitry expressed disappfoval of the document or technical grounds : France InternationalOrganizationforStandardization,1982 Printed in Switzerland ISO6859/1-1982 (E) INTERNATIONALSTANDARD Aircraft t-Proximityswitches Part 1 :General requirements Introduction 6 References 2 This internatiorial Stanidard has been prepared to provide ISO/R224;Standardformofdeclarationofperformanceofair- requlrernerits for class proximfty switches, for use in craft alectrical equipment. unprotectedpositronis onalrcraft,andforclassZproximity switches, iRterded fof use in less arduous environments. i501487;General purpose push-pall singie-poie circuit- Breakers for aircraft Performance Fequirements. This Part of Iso6859 deais with gerieral fequirermefits for all proximity switches.Requtteriielits Tor niagrietic pruxirifty 150 1540; Aerospace = Chiaracteristics uf aircraft electrical switches, for inductive proxlmity switchies, and for Hail effect systems. proximitySwitehies,wimformthesubjectsofPartsz,3and4 of this International Standafd respectiveiy. Further Parts rmay IS02653;Environmental tests for aircratteqdipment be added in due courss, covuritig other Basic methods of Part2.3:iceformation. operation. IS2669;Environmental tests for aircraft equipment = Part 3.2: Steady state acceleration. Scopeandfieldofapplication IS0 2678, Environmental fests for aircraft equipmeht Part 4.3:Insulationresistance and highvolitagetestsforeiec- This Part of IsU 6859 specfies general requiremernits for pr8x- tricalequipment. imity switches for aifcraft, suitable for use in nominal z8 d.c. systens, or 115/200 V, 400 Hz a.c. systerrns, naving thie isuZ683Environmental tests foraircraftequiprient characteristics specfflied in ISO 1540. Part5.1 :Exptosronproofiess:1) Two classes of switch are speclfied : IsoZ859,Sampiingproceduresandfablesforfnspectionhy attributes. class 1 : switches for use in unprotected positionis on Iso7137,Aircraft=Environmentalconditions and testpro. aircraft; ceduresforairborneequpment. class2: switches intended for fess arduous environments. 3 Definitions Specific requifements for proximity switches using a particuriar For the purpose of this International Standara, thc following method of operation wil be given in the relevant Part of this definitions apply. InternationalStandard (seethe introduction)and shaff be read inconjunctionwiththis