1、AECMA STANDARD NORME AECMA AECMA NORM I prEN 4056-003 Edition P 1 June 2002 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION I b Gulledelle 94 - 6-1200 Brussels - Tel. + 32 2 775 81 10 - Fax. + 32 2 775 81 11 - www.aecma-stan.org ICs: 49.060 Descriptors: ENGLISH VERSIO
2、N Aerospace series Cable ties for harnesses Part 003: Plastic cable ties, operating temperatures - 65 “C to 105 OC and - 65 OC to 150 OC Product standard Srie arospatiale Luft- und Raumfahrt Frettes de cblage pour harnais Partie 003 : Frettes en plastique, tempratures dutilisation - 65 “C a 105 OC e
3、t - 65 OC 150 “C Norme de produit Produ ktnorm Befestigungsbnder fr Leitungsbndel Teil 003: Befestigungsbander aus Kunststoff, Betriebstemperatur - 65 OC bis 105 “C und - 65 OC bis 150 OC This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European Assoc
4、iation of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical cont
5、ent shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN it will be submitted as a draft European Standard to CEN (European Committee for
6、Standardization) for formal vote. I Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX I Edition approved for publication I Comments should be sent within six months after the date of publication to 28 June 2002 AECMA-S
7、TAN Gulledelle 94 6-1200 BRUXELLES Electrical Domain Copyright 2002 O by AECMA-STA Page 2 prEN 4056-003: 2002 Contents Scope . Normative references Terms and definitions . Required chara Tests and requirements Quality assurance Marking . Packaging and storage . . . . . . . . . . . . . , . . , , . .
8、. . . . . , . . . , , , . . , . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . Designation . . . Page 3 prEN 4056-003: 2002 I Scope This standard defines the required characteristics of cable ties with either internal or external serrations manufactured entirely from plastics material, fo
9、r installation under controlled tension on aircraft cable harnesses. It shall be used together with EN 4056-001. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate place
10、s in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referr
11、ed to applies. EN 2825 EN 2826 EN 4056-001 EN 4057 * EN 4057-307 EN 4057-401 EN 4057-407 MS 90387 Aerospace series - Burning behaviour of non metallic materials under the influence of radiating heat and flames - Determination of smoke density 1) Aerospace series - Burning behaviour of non metallic m
12、aterials under the influence of radiating heat and flames - Determination of gas components in the smoke 1) Aerospace series - Cable ties for harnesses - Part O01 : Technical specification 1) Aerospace series - Cable ties for harnesses - Test methods Aerospace series - Cable ties for harnesses - Tes
13、t methods - Part 307: Resistance to Ultra Violet Radiation 1) Aerospace series - Cable ties for harnesses - Test methods - Part 401: Loop tensile strength 2) Aerospace series - Cable ties for harnesses - Test methods - Part 407: Verification of application tool settings 1) Tool, hand, adjustable for
14、 plastic and metal tiedown straps 3 Terms and definitions For the purposes of this standard, the terms and definitions given in EN 4056-001 apply. 4 Required characteristics 4.1 Dimensions See figure 1 and table 1. * And all its parts quoted in table 3 1) Published as AECMA Prestandard at the date o
15、f publication of this standard. 2) In preparation at the date of publication of this standard. Page 4 prEN 4056-003: 2002 Length F mm “f Width Height tensile related to strength minimum D v length N 9 mm mm code 4 A B mm mm mm E I Figure 1 - Cable tie Table I - Dimensions and mass U 5,O 100 335 139
16、V 1,6 110 360 183 Wa 5,O 230 700 119 X a 5,O 130 456 159 a based on NSA 835401 Width of strap E mm min. I max. I Loop I oMEes Head dimensions 3,3 3,8 6,3 6,6 5,O 120 93 4,4 4,8 6,7 8,6 6,O 220 21 ,o 3,3 3,8 6,3 6,6 5,O 120 17,O 6,6 7,l 9,4 13,5 8,3 530 65,O 4,4 4,8 6,7 83 6,O 220 24,5 8,9 9,4 133 8,
17、3 400 94 7,4 7,8 9,4 13,5 8,3 530 86 4.2 Material 4.2.1 Temperature rating (type) The ties shall be capable of use within the following temperature ranges: Type I : - 65 OC to 105 “C, 135 OC; Type 2: - 65 OC to 150 OC. Page 5 prEN 4056-003: 2002 4.2.2 Flammability class Available as class 1 and clas
18、s 2. See table 3 for requirements. 4.2.3 Colour See table 2 of EN 4056-001. 4.2.4 Burning behaviour Materials for cable tie shall satisfy the following requirements when tested to EN 2825 and EN 2826. 4.2.4.1 Smoke density The maximum specific optical smoke density (average) shall not exceed: - Dm =
19、 200 (flaming mode); - Dm = 150 (non flaming mode). 4.2.4.2 Toxicity The average concentration in parts per million (ppm) of the following gas components shall not exceed the following limits after a test duration of 4 min. Gas component Hydrogen Fluoride HF Hydrogen Chloride HCI Hydrogen Cyanide HC
20、N Sulphur Dioxide so2 Hydrogen Sulphide H2S Nitrous Gases NO/N02 Carbon Monoxide CO Limit of concentration ppm 1 O0 150 150 1 O0 1 O0 1 O0 1 O00 4.3 U.V. resistance U.V. resistant cable ties shall meet the requirements of EN 4057-307, given in table 3. 4.4 Application tool Cable ties shall be applie
21、d using a tensioning tool as specified in MS 90387, verificated in accordance with EN 4057-407 ensuring that the application force does not exceed the values shown in table 2. Table 2 - Maximum recommended application force Page 6 prEN 4056-003: 2002 There shall be no sharp or abrasive edges. The ma
22、ss and dimensions shall be in accordance with table 1 of this standard. I 5 Tests and requirements See table 3 and EN 4056-001. Table 3 -Tests Designation of the test Requirement 201 a disual examination 202 a 301 a Examination of mass and jimensions Salt mist test Not app!icable After removal of th
23、e burner from the specimen, any flame shall extinguish within 5 s. If there are no flaming droplets (or particles) during the test, and the flame extinguishes within 5 s, the specimen will be classified as Class I. If there are flaming droplets (or particles) but all the flames extinguish within 5 s
24、, the specimen will be classified as class 2. All the specimens shall meet the minimum loop tensile strength as stated in table 1 of this standard. 302 a 303 a Resistance to fluids Loop tensile strength at maximum iivorking temperature All specimens shall meet at least 60 % of the minimum loop tensi
25、le strength as stated in table I of this standard. 304 a 305 a 306 a - Colour fastness (applicable only to coloured ties) The colour fastness of the specimen shall not be less than wool standard number 6. Heat ageing test The tensile strength shall not be lower than that specified in the appropriate
26、 product standard. The elongation at break of the aged, flat samples shall be not less than 75 % of the elongation at break of the unaged flat samples as defined in the product standard. 307 a Resistance to Ultra Violet radiation All the specimens shall meet at least 95 % of requirement for EN 4057-
27、401. The average elongation at break shall be not less than 60 % of that of the unexposed standard. 401 Loop tensile strength All the specimens shall meet the minimum loop tensile strength as stated in table 1 of this standard. After the vibration test: There shall be no damage to the cable insulati
28、on when viewed with a 10 times magnification aid. The specimens shall be examined for cracks, breaking and/or release of the locking device during removal from the vibration test harness. All specimens shall meet the minimum loop tensile strength as stated in table 1 of this standard. All the specim
29、ens shall meet the minimum loop tensile strength as stated in table I of this standard. 402 a Life cycle Low temperature installation 404 a 405 a Compass safe distance Not applicable Locking device retention. (Ties containing metal locking barbs only.) Not applicable 406 a 407 a Verification of appl
30、ication tool settings See table 2 (+ 5 %). a Published as AECMA Prestandard at the date of publication of this standard In preparaion at the date of publication of this standard Page 7 prEN 4056-003: 2002 Description block CABLE TIE 6 Quality assurance Quality assurance requirements to be in accorda
31、nce with EN 4056-001. Identity block EN4056-003B1 ROB 7 Designation EXAMPLE : Number Material of code this (see standard EN 4056-001, ;- table 1) Flammability class (see EN 4056-001, 4.2) Size code (see EN 4056-001 see table 6) Colour code (see EN 4056-001, table 2) Variant code (see EN 4056-001 table 7) 8 Marking See EN 4056-001. I 9 Packaging and storage See EN 4056-001.
