1、BSI Standards PublicationBS EN 4708-001:2014Aerospace series Sleeving,heat-shrinkable, for binding,insulation and identificationPart 001: Technical specificationBS EN 4708-001:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4708-001:2014.The UK participatio
2、n in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contra
3、ct. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 84592 5ICS 49.060Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority
4、of theStandards Policy and Strategy Committee on 31 May 2014.Amendments issued since publicationDate Text affectedBS EN 4708-001:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4708-001 April 2014 ICS 49.060 English Version Aerospace series - Sleeving, heat-shrinkable, for binding, insulati
5、on and identification - Part 001: Technical specification Srie arospatiale - Manchons thermortractables, de jonction, isolement et identification - Partie 001: Spcification technique Luft- und Raumfahrt - Wrmeschrumpfender Schlauch zur Befestigung, Isolierung und Identifizierung - Teil 001: Technisc
6、he Lieferbedingungen This European Standard was approved by CEN on 27 December 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists a
7、nd bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the
8、 responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugosl
9、av Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D
10、E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4708-001:2014 EBS EN 4708-001:2014EN 4708-001:2014 (E) 2 Contents
11、Page Foreword 3 1 Scope 4 2 Normative references 4 3 Definitions and symbols .4 4 Materials and characteristics .4 5 Required properties .5 6 Test methods 5 7 Printed sleeves .8 8 Quality assurance 8 9 Labelling and packaging .9 Annex A (informative) Storage recommendations . 10 BS EN 4708-001:2014E
12、N 4708-001:2014 (E) 3 Foreword This document (EN 4708-001:2014) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approva
13、l of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2014, and conflic
14、ting national standards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to
15、 the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece
16、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4708-001:2014EN 4708-001:2014 (E) 4 1 Scope This European Standard specifies the required cha
17、racteristics, test methods, qualification and production routine testing of heat shrinkable sleeving for binding, insulation and identification. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
18、 For dated references, only the edition cited applies. For undated 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 9133, Aerospace series - Quality man
19、agement systems - Qualification procedure for aerospace standard parts EN ISO 846, Plastics - Evaluation of the action of microorganisms (ISO 846) EN ISO 4892-2, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2) IEC 603041), Standard colours for insula
20、tion for low-frequency cables and wires IEC 60684-2, Flexible insulating sleeving Part 2: Methods of test 1)3 Definitions and symbols For the purposes of this document, the definitions and symbols given in EN 3475-100 apply. 4 Materials and characteristics 4.1 General Sleeving shall be made from mat
21、erials that ensure the finished sleevings conform to the product standard. 4.2 Material types See product standards. 4.3 Finish The sleeving, both before and after unrestricted shrinkage, shall be free from bubbles, pinholes, creases and other defects that may affect performance. 4.4 Dimensions See
22、product standard. 1) Published by: IEC International Electrotechnical Commission. http:/www.iec.ch/ BS EN 4708-001:2014EN 4708-001:2014 (E) 5 4.5 Shrink ratio See product standard. 4.6 Temperature range See product standard. 4.7 Shelf life NOTE The use by date is the shelf life when stored under the
23、 conditions recommended in Annex A. The use by date shall be the guaranteed minimum storage time for which the sleeving retains the “as supplied” internal diameter. Following unrestricted shrinkage in accordance with the product standard, the sleeving shall conform to the internal diameter, wall thi
24、ckness and longitudinal change requirements as specified in the product standard. 4.8 Colours See product standards for available colours. The colours shall be a reasonable match to one of those specified in IEC 60304. 4.9 Standard cutting tolerances for cut lengths of sleeving See Table 1. Table 1
25、Standard cutting tolerances for cut lengths of sleeving Cut length mm Standard cutting tolerances 0 to 9,9 0,5 10 to 24,9 1,0 25 to 49,9 1,5 50 to 100 3,0 101 to 150 4,0 151 to 250 5,0 251 to 1 200 12,0 1 201 and over 1 % 5 Required properties The properties of the sleeves, tested according to the m
26、ethods described hereafter shall comply with the values given in the product standards. 6 Test methods See Table 2. BS EN 4708-001:2014EN 4708-001:2014 (E) 6 Table 2 Tests: methods, frequency, requirements Description Test method IEC 60684-2 Clause Qualification 8.1 Routine 8.2 Periodic 8.3 Requirem
27、ents Test conditions 2 X X X Measurements of bore, wall thickness and concentricity 3 X X X Product standard Density a4 X X X Product standard Heat shock (resistance to heat) 6 X X X Product standard Longitudinal change 9 X X X Product standard Bending after heating 13 X X Product standard Bending a
28、t low temperature 14 X X Product standard Dimensional stability on storage 16 X X Product standard Tensile strength, tensile stress at 100 % elongation, elongation at break and secant modulus at 2 % elongation 19 X X X Product standard Breakdown voltage 21 X X X Product standard Volume resistivity 2
29、3 X X Product standard Flame propagation tests a26 X X Product standard Oxygen index a27 X X Product standard Transparency b28 X X Product standard Corrosion resistance (tensile and elongation) 32 X X Product standard Copper corrosion (presence of corrosive volatiles) a33 X X Product standard Colour
30、 fastness to light ac34 X X Product standard Resistance to selected fluids a36 X X Product standard Thermal endurance a37 X Product standard Mass per unit length 38 X X Product standard Heat ageing 39 X X Product standard BS EN 4708-001:2014EN 4708-001:2014 (E) 7 Water absorption a40 X X Product sta
31、ndard Restricted shrinkage 41 X X Product standard Colour stability to heat ac42 X X Product standard Smoke index a43 X X Product standard Toxicity index a44 X X Product standard Halogen content a45 X X Product standard Acid gas generation a46 X X Product standard Long term ageing (3 000 h) a50 X Pr
32、oduct standard Dynamic shear at ambient temperature 51 X X Product standard Dynamic shear at elevated temperature 52 X X Product standard Dynamic shear after heat shock and heat ageing 53 X X Product standard Rolling drum peel to aluminium 54 X X Product standard Aluminium rod dynamic shear 55 X X P
33、roduct standard Sealing 56 X X Product standard Adhesive T peel strength of two bonded heat shrinkable substrates 57 X X Product standard Fungus resistance aIn accordance with EN ISO 846 method B, 56 days exposure, followed by the measurement of tensile strength and elongation at break X Product sta
34、ndard Artificial weathering aIn accordance with EN ISO 4892-2, Table 3 method A cycle 1 relative humidity (565 10) % duration 720 h X Product standard X = Test applicable. aOnly one size of sleeving needs to be tested. bTest the greatest wall thickness. cAll colours are to be tested. BS EN 4708-001:
35、2014EN 4708-001:2014 (E) 8 7 Printed sleeves See product standards. 8 Quality assurance 8.1 Qualification 8.1.1 General requirements See EN 9133. 8.1.2 Qualification conditions The sleevings shall be submitted for qualification tests on spools, in coils or sufficient cut lengths. Each spool, coil or
36、 sufficient cut lengths shall have a label containing information given in 9.1. 8.1.3 Qualification tests Qualification tests shall be performed on sizes taken from the top, middle and bottom of the manufacturer or supppliers range for each different material, unless otherwise indicated in Table 2.
37、8.2 Production routine tests 8.2.1 Delivery conditions The production routine tests shall be applied to samples, taken at random, from every batch, and shall consist of the tests listed in Table 2. 8.2.2 Batch A batch of sleeving shall consist of sleeving of the same type, dimensions and colour prod
38、uced from a single mix at any one time, provided that the cross-linking conditions are maintained constant throughout. For continuous processing a single mix shall be defined by the manufacturer or supplier to the satisfaction of the approving authority. 8.2.3 Random sampling retest In the event of
39、a failure of the sleeving 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, otherwise the sleeving shall be deemed not to conform to this standard. 8.3 Per
40、iodic tests They shall be carried out by sampling at least every five years. The “X” means applicable at the same condition specified for qualification. See Table 2. BS EN 4708-001:2014EN 4708-001:2014 (E) 9 9 Labelling and packaging 9.1 Labelling Each package of sleeves/sleeving shall be labelled w
41、ith the following information. manufacturers name and designation; sleeving designation according to the EN product standard; batch number; date of manufacture (month, year); the use by date (If shorter than five years); the length and quantity of sleeves/sleeving; the characters/legend printed on t
42、he sleeves, if applicable. 9.2 Packaging Sleeving shall be supplied in a way which ensures adequate protection during transport, handling and storage. Sleeving shall be wound evenly and compactly on reels or in coils suitably secured unless an alternative form of packaging such as containers or disp
43、ensers is required by the contract. If a unit pack contains more than one length of sleeving, the purchaser may require this to be indicated. The following items are subject to agreement between purchaser and supplier. number of lengths; minimum lengths; marking requirements. BS EN 4708-001:2014EN 4
44、708-001:2014 (E) 10 Annex A (informative) Storage recommendations The following recommendations are intended to assist the prevention of sleeving degradation caused by conditions existing in the storage area. a) Sleeving should be stored between 18 C and 35 C. b) Sleeving should be stored under dry
45、conditions. c) No sleeving should be stored in direct sunlight or strong artificial light. d) Sleeving should not be stored within 2 m of a direct ultraviolet (e.g. fluorescent) light source. e) Sleeving delivered in packages should remain packaged until required. f) Material used in packaging shoul
46、d preferable be of an opaque material. g) Packages which are opened for removal of part of their contents should be adequately resealed. This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and ser
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