BS ISO 2020-1:1997 pdf free.Aerospace一Preformed flexible steel wire rope for aircraft controls—Dimensions and loads.
BS ISO 2020-1  1 Scope This part of ISO 2020 specifies the requirements which shall be satisfied by preformed flexible steel wire ropes for aircraft controls. The wire ropes shall be capable of operation within the temperature range of- 54 °C to+ 121 °C.2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 2020. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 2020 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.ISO 2020-2:1997, Aerospace -一Preformed flexible steel wire rope for aircraft controls一Part 2: Technical specification.ISO 2408:1985, Steel wire ropes for general purposes一Characteristics.ISO 2532:1974, Steel wire ropes 一Vocabulary.ISO 3578:1980, Steel wire ropes一Standard designations.3 Definitions
For the purposes of this part of ISO 2020, the definitions and designations given in IsO 2408, ISO 2532 and ISO 3578 apply. 4 Dimensions, masses, strengths of wire for ropes 4.1 Wire diameters The nominal wire diameters necessary for the manufacture of ropes shall be specified by the ropemaker.The limit deviations given in Table 1 apply to the diameters of the finished wire.This type of wire rope shall be composed of six outer strands each of seven wires laid in a right-hand direction around a steel centre strand of seven wires.The steel centre strand shall be composed of a layer of six wires laid in a right-hand direction around a core or king wire. It shall be of sufficient diameter to give full support to the outer strands.The six outer strands shall be composed of a layer of six wires laid in a left hand direction around a core or king wire. BS ISO 2020-1 pdf download.