ASD-STAN PREN 4840-001-2016 Aerospace series Heat shrinkable moulded shapes Part 001 Technical specification (Edition P 1).pdf

1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4840-001 Edition P 1 December 2016 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: Descriptors: ENG

2、LISH VERSION Aerospace series Heat shrinkable moulded shapes Part 001: Technical specification Luft- und Raumfahrt Wrmeschrumpfende Formteile Teil 001: Technische Spezifikation Srie arospatiale Manchons thermortractables Partie 001 : Spcification technique This “Aerospace Series“ Prestandard has bee

3、n drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequ

4、ent to the publication of this Prestandard, the technical content 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 ASD-STAN, the ASD-STAN prEN wi

5、ll be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by wi

6、thdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use

7、, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or an

8、y suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-m

9、ail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1st December 2016 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2016 ASD-STAN prEN 4840-001:2016 (E) 2 Contents Page Foreword 2 Scope 3 1Norm

10、ative references 3 2Definitions and symbols . 3 3Materials and characteristics . 3 4Required properties . 4 5Test methods 4 6Quality assurance 6 7Labelling and packaging . 8 8Annex A (Informative) Storage recommendations 9 Foreword This standard was reviewed by the Domain Technical Coordinator of AS

11、D-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4840-001:2016 (E) 3 Scope 1This standard specifies the required characteristics, test metho

12、ds, qualification and production routine testing of heat shrinkable moulded shapes. Normative references 2The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For und

13、ated references, the latest edition of the referenced document (including any amendments) applies. EN 3475-100, Aerospace series Cables, electrical, aircraft use Test methods Part 100: General EN 4840-002, Aerospace series Heat shrinkable moulded shapes Part 002: Index of product standards and produ

14、ct dimensions 1) EN 9133, Aerospace series Quality Management Systems Qualification Procedure for Aerospace Standard Products EN ISO 4892-2, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lamps IEC 60304, Standard colours for insulation for low-frequency cables and wires

15、2) IEC 62329-2, Heat-shrinkable moulded shapes Part 2: Methods of test 2) IEC 62329-3, Heat-shrinkable moulded shapes Specification requirements for shape dimensions, material requirements and compatibility performance Sheet 100: Heat-shrinkable moulded shape dimensions 2) Definitions and symbols 3F

16、or the purposes of this document, the definitions given in EN 3475-100 apply. Materials and characteristics 4General 4.1The moulded shapes shall be made from materials that ensure the finished product conform to the product standard. Material types 4.2See product standards. Finish 4.3The moulded sha

17、pes, both before and after unrestricted shrinkage, shall be free from bubbles, pinholes, creases and other defects that may affect performance. 1) In preparation at the date of publication of this standard. 2) Published by: IEC International Electrotechnical Commission http:/www.iec.ch/ prEN 4840-00

18、1:2016 (E) 4 Dimensions 4.4As detailed in EN 4840-002. Temperature range 4.5See product standard. Shelf life 4.6The use by date shall be the guaranteed minimum storage time for which the moulded shape retains the “as supplied” internal diameter. Following unrestricted shrinkage in accordance with th

19、e product standard, the moulded shape shall conform to the dimensions as specified in the EN 4840-002. In the event that the shelf life specimens fail the requirements of the product standard of any product still held by the manufacturer or distributors delivery shall be halted, until samples of eac

20、h batch in storage has been tested to confirm that they satisfy the original recovery qualification requirements before release can be resumed. In the event of failure the Mandated Body is to be notified. NOTE The use by date is the shelf life when stored under the conditions recommended in Annex A.

21、 Colours 4.7See product standards for available colours. The colours shall be a reasonable match to one of those specified in IEC 60304. Standard test specimens 4.8Moulded shape material specimens shall be prepared according to IEC 62329-2 Clause 4. Required properties 5The properties of the heatshr

22、ink shapes, tested according to the methods described hereafter shall comply with the values given in the product standards. Test methods 6For each product standard, tests shall be as given in Table 1. Shelf life tests 6.1Sufficient quantities of moulded shapes used for qualification shall be retain

23、ed to provide the test samples for the conducting of the shelf life test for 60 months. (Shorter if specified in the product standard). Tests shall be conducted at 12 monthly intervals The moulded shapes shall be stored at a temperature of (23 3) C and a relative humidity between 45 % and 75 %. Meas

24、ure the as supplied internal diameters and then fully recover the moulded shapes in accordance with the product standard. Measure the recovered internal diameters, length and wall thicknesses .The measurements shall be made in accordance with IEC 62329-2 Clause 5. prEN 4840-001:2016 (E) 5 Table 1 Te

25、sts methods, frequency, requirements (1 for 2) Tests Description Test method IEC 62329-2 Clause Qualification 7.1 Routine 7.3 Periodic 7.4 Requirements Test conditions 3 x x x Dimensions 5 x x x See EN 4840-002 and product standard Density a 6 x x x Product standard Heat shock Resistance to heat 7 x

26、 x x Product standard Bending at low temperature 8 x x Product standard Dimensional stability on storage 9 x x Product standard Tensile strength and elongation at break 10 x x x Product standard Secant modulus at 2 % elongation 11 x x x Product standard Electric strength 12 x x x Product standard Vo

27、lume resistivity after damp heat 13 x x Product standard Permittivity and dissipation factor 14 x x Product standard Resistance to tracking 15 x Product standard Flammability 16 x x Product standard Oxygen index 17 x x Product standard Copper corrosion 18 x x Product standard Colour fastness to ligh

28、t b 19 x x Product standard Resistance to selected fluids 20 x x Product standard Long term ageing (3 000 h) c 21 x Product standard Mass 22 x x Product standard Heat ageing 23 x x Product standard Water absorption 24 x x Product standard Colour stability to heat b 25 x x Product standard Smoke inde

29、x 26 x x Product standard prEN 4840-001:2016 (E) 6 Table 1 Tests methods, frequency, requirements (2 for 2) Tests Description Test method IEC 62329-2 Clause Qualification 7.1 Routine 7.3 Periodic 7.4 Requirements Toxicity index 27 x x Product standard Halogen content 28 x x Product standard Acid gas

30、 generation 29 x x Product standard Resistance to mould growth c 30 x Product standard Compatibility 31 Dynamic shear at ambient temperature 31.1 x x Product standard Static load 31.2 x x Product standard Fluid resistance 31.3 x x Product standard Thermal Ageing 31.4 x x Product standard Peel Adhesi

31、on 31.5 x x Product standard Altitude immersion 31.6 x x Product standard Artificial weathering c In accordance with EN ISO 4892-2 Table 3 method A cycle 1 relative humidity (565 10) % duration 720 h x Product standard Shelf life EN 4840-001 6.1 x a The density of the material shall be initially est

32、ablished and declared during qualification testing, and shall not deviate from this value by more than 0,03 during subsequent routine testing. b All colours are to be tested. c The test only needs to be repeated if there is a significant change to composition or manufacturing techniques. Quality ass

33、urance 7Qualification 7.1General requirements 7.1.1See EN 9133. NOTE Sleeving technical specification says EN 9133. Qualification conditions 7.1.2The moulding material shall be submitted for qualification as test sheets in accordance with IEC 62329-2 Clause 4 or as moulded shapes to measure dimensio

34、ns and mass and shall have a label containing information given in 8.1. prEN 4840-001:2016 (E) 7 Qualification tests 7.1.3See Table 1. Qualification tests shall be performed on sheets of material in accordance with IEC 62329-2 Clause 4 or moulded shapes as detailed in EN 4840-002. Select moulded sha

35、pes for the shelf life test. Approval may be granted subject to the provisions of 4.6. Due to the duration of this test approval may be granted prior to completion, but will be subject to review on completion. Maintenance of qualification 7.2See Table 1. Tests shall be successfully carried out every

36、 60 months for moulded shape material types in production or when production is restarted following a production stoppage greater than 36 months. The maintenance qualification tests shall be performed on specimens taken at random in accordance with EN 9133. Production routine tests 7.3Delivery condi

37、tion 7.3.1See Table 1. The production routine tests shall be carried out on all material batches as shall consist of the tests listed in Table 1. Batch 7.3.2A batch of material shall consist of that quantity of moulding material, mixed, and/or homogeneously blended at any one time. For continuous pr

38、ocessing a single mix shall be defined by the manufacturer or supplier to the satisfaction of the approving authority. A batch of moulded shapes is that quantity of the same material type, dimensions and colour produced from one moulding machine, at one time under the same conditions from the same b

39、atch of moulding material. Random sampling tests: retest 7.3.3In the event of a failure of the material to conform to the requirements of a test, the batch shall be re-sampled and the test repeated using two further sets of test-pieces. Both sets shall conform to the appropriate test requirements, o

40、therwise the material shall be deemed not to conform to this standard. Periodic tests 7.4They shall be carried out by sampling at least every five years, unless otherwise agreed with the approval authority. The “X” means applicable at the same condition specified for qualification. See Table 1. prEN

41、 4840-001:2016 (E) 8 Labelling and packaging 8Labelling 8.1Each package of moulded shapes shall be labelled with the following information. manufacturers name and designation; product designation according to the EN product standard; batch number; date of manufacture (month, year); the use by date (

42、 If shorter than 5 years); quantity. Packaging 8.2The products shall be supplied in a way which ensures adequate protection during transport, handling and storage. prEN 4840-001:2016 (E) 9 Annex A (Informative) Storage recommendations The following recommendations are intended to assist the preventi

43、on of product dimensional change caused by conditions existing in the storage area. a) Product should be normally stored between 18 C and 26 C with short excursions to 35 C; b) Product should be stored under dry conditions; c) No product should be stored in direct sunlight; d) Product should not be

44、stored within 2 m of a direct ultraviolet (e.g. fluorescent) light source; e) Product delivered in packages should remain packaged until required; f) Material used in packaging should preferable be of an opaque material; g) Packages which are opened for removal of part of their contents should be adequately resealed.