6859/1 (ISO International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEKAYHAPOAHAR OPTAHW3AUMR NO CTAHAAPTW3ALWW-ORGANISATION INTE RNATIONALE DE NORMALISATION Aircraft -- Proximity switches Part 1 : General requirements Aéronautique - Détecteurs de proximite -- Partie 1 : Exigences genérales First edition -- 1982-02-01 UDC 621.316.54 : 629.7 Ref. No. ISO 6859/1-1982 (E) SO 6859/1-1982 ( Descriptors : aircraft industry, aircraft equipment, electric switches, definitions, specifications, tests, testing conditions Price based on 19 pages Copyright International Organization for Standardization Not for Resale Foreword ISO (the ilnternational Organization for Standardization) is a worldwide federation of national standards institutes (IsO member bodies). The work of developing Inter- body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard Iso 6859/1wasdevelopedbyTechnical Committee ISO/TC 20, Aircraft and space vehicles, and was circulated to the member bodies in September 1980. It has been approved by the member bodies of the following countries : Austria Germany, F. R. South Africa, Rep. of Italy Spain Belgium Japan Sweden Brazil Netherlands United Kingdom Canada Czechoslovakia Romania USA The member body of the following country expressed disapproval of the document on technical grounds : France ? International Organization for Standardization, 1982 Printed in Switzerland Not for Resale ted without license from IHS ISO 6859/1-1982 (E) INTERNATIONAL STANDARD Aircraft -- Proximity switches Part 1 : General requirements 0 Introduction 2 References ISO/R 224, Standard form of declaration of performance of air- This International Standard has been prepared to provide requirements for class 1 proximity switches, for use in craft electrical equipment. unprotected positions on aircraft, and for class 2 proximity ISO 1467, General purpose push-pull single-pole circuit- switches, intended for use in less arduous environments breakers for aircraft - Performancerequirements IsO 1540, Aerospace Characteristics of aircraft electrical proximity switches Requirements for magnetic proximity switches, for inductive proximity switches, and for Hall effect systems. proximity switches, will form the subjects of Parts 2, 3 and 4 of this International Standard respectively. Further Parts may ISo 2653, Environmental tests for aircraft equipment be added in due course, covering other basic methods of Part 2.3 . Ice formation. operation. Iso 2669, Environmental tests for aircraft equipment Part 3.2 - Steady state acceleration. 1 Scope and field of application ISo 2678, Environmental tests for aircraft equipment Part 4.3 Insulation resistance and high voltage tests for eiec- This Part of IsO 6859 specifies general requirements for prox- trical equipment. imity switches for aircraft, suitable for use in nominal 28 V d.c. systems, or 115/200 V, 400 Hz a.c. systems, having the Iso 2683, Environmental tests for aircraft equipment characteristics specified in ISO 1540. Part 5. 1 : Explosion proofness.1) Two classes of switch are specified . Iso 2859, Sampling procedures and tables for inspection by attributes. class 1 switches for use in unprotected positions on Iso 7137,Aircraft- Environmental conditions and testpro- aircraft, cedures for airborne equipment. class 2 : switches intended for less arduous environments. 3 Definitions Specific requirements for proximity switches using a particular For the purpose of this International Standard, the following method of operation will be given in the relevant Part of this definitions apply. International Standard