1、DRAFT FOR DEVELOPMENTDD ISO/TS 16553:2006Road vehicles Data cables Test methods and requirementsICS 43.040.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3
2、g47g36g58DD ISO/TS 16553:2006This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006ISBN 0 580 48452 1National forewordThis Draft for Development reproduces verbatim ISO/TS 16553:2006.This publication is not to be regarded a
3、s a British Standard.It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis, so that information and experience of its practical application can be obtained.A review of this Draft for Development will be c
4、arried out not later than 2 years after its publication.Notification of the start of the review period, with a request for the submission of comments from users of this Draft for Development, will be made in an announcement in the appropriate issue of Update Standards. According to the replies recei
5、ved, the responsible BSI Committee will judge whether the Draft for Development can be converted into a British Standard or what other action should be taken.Observations which it is felt should receive attention before the official call for comments will be welcomed. These should be sent to the Sec
6、retary of the responsible BSI Technical Committee AUE/16, Electrical and electronic equipment, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the text.A list of organizations
7、 represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by
8、using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Summary of pagesThis document comprises a front cover, an inside front
9、 cover, the ISO/TS title page, pages ii and iii, a blank page, pages 1 to 9 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsReference numberISO/TS 16553:2006(E)TECHNICAL SPECIFIC
10、ATION ISO/TS16553First edition2006-02-15Road vehicles Data cables Test methods and requirements DD ISO/TS 16553:2006ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International
11、Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, al
12、so take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committ
13、ees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In other circumstances, partic
14、ularly when there is an urgent market requirement for such documents, a technical committee may decide to publish other types of normative document: an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working group and is accepted for publica
15、tion if it is approved by more than 50 % of the members of the parent committee casting a vote; an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical committee and is accepted for publication if it is approved by 2/3 of the members of the committee castin
16、g a vote. An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is confirmed, it is reviewed again after a further three years, at which time it
17、 must either be transformed into an International Standard or be withdrawn. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO/TS 16553 was prepared
18、 by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and electronic equipment. DD ISO/TS 16553:2006blank1Road vehicles Data cables Test methods and requirements 1 Scope This Technical Specification specifies test methods, requirements for screened and unscreened, and sheat
19、hed and unsheathed twisted pair data cables, and coaxial cables intended for use in road vehicle applications. For sheathed cables, the cables are in accordance with ISO/DIS 14572. See ISO/DIS 6722 for temperature class ratings. 2 Normative references The following referenced documents are indispens
20、able for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/DIS 6722:2002, Road vehicles 60 V and 600 V single-core cables Dimensions, test methods and r
21、equirements ISO/DIS 14572:2006, Road vehicles Round, screened and unscreened 60 V and 600 V multi-core sheathed cables Test methods and requirements for basic and high performance cables ASTM D 4566, Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommu
22、nications Wire and Cable 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 capacitance property of a system of conductors and dielectrics which permits the storage of electrically separated charges, when potential differences exist between the
23、conductors 3.2 characteristic impedance total opposition that a circuit presents to the flow of an alternating current, specifically the complex quotient of voltage divided by current 3.3 screen (screened, electromagnetic screen) screen of conductive material intended to reduce the penetration and/o
24、r radiation of a varying electromagnetic field into an assigned region 3.4 core assembly comprising a conductor with its own insulation (and screens if any) DD ISO/TS 16553:20062 3.5 coaxial pair (Cable) uniform transmission line consisting of two cylindrical conductors with the same axis 4 General
25、requirements 4.1 Tests The cables shall be submitted to the tests as specified in Table 1. 4.2 General test conditions These shall be according to 4.4 of ISO/DIS 6722. 4.3 Ovens These shall be according to 4.5 of ISO/DIS 6722. 4.4 Visual appearance This shall be according to 4.6 of ISO/DIS 14572. 5
26、Dimensions 5.1 Outside cable diameter This shall be according to 5.2 of ISO/DIS 14572. 5.2 Ovality of sheath The usage of this test according to 5.3 of ISO/DIS 14572 shall be established by agreement between customer and supplier. 5.3 Thickness of sheath This shall be according to 5.4 of ISO/DIS 145
27、72. 5.4 Length of lay of a twisted pair 5.4.1 General This test shall only be used for an unscreened twisted pair. The usage of this test shall be established by agreement between customer and supplier. 5.4.2 Test sample The sheath (if any) shall be removed from a 1 m cable without allowing the ends
28、 to untwist. Other lengths may be used depending on the cable construction. 5.4.3 Apparatus A measuring device with an accuracy of 1,0 mm shall be used. DD ISO/TS 16553:20063Table 1 Tests Sheathed twisted pairs Unsheathed twisted pairsClause Test description According to ISO/DISScreened Unscreened S
29、creened UnscreenedCoaxial 4 General 4.4 Visual appearance AaBbAB AB 5 Dimensions 5.1 Outside cable diameter 14572 AB AB AB 5.2 Ovality 14572 CcDdCD 5.3 Thickness of sheath 14572 AB AB AB 5.4 Length of lay of a twisted pair CD CD 6 Electrical characteristics 6.1 Continuity 14572 ABEeABE ABE ABE ABE 6
30、.2 Withstand voltage 14572 ABE ABE ABE ABE ABE 6.3 Characteristic impedance CD CD CD CD CD 6.4 Capacitance AB AB AB AB AB 6.5 Specific line delay CD CD CD CD CD 6.6 Screening effectiveness 14572 CD CD CD 7 Mechanical characteristics 7.1 Pressure test at high temperature 14572 CD CD CD 7.2 Adhesion o
31、f sheath 14572 CD CD CD 7.3 Strip force of the dielectric 6722 AB 7.4 Cyclic bending 14572 C C C 8 Low temperature characteristics 8.1 Winding 14572 AB AB AB 8.2 Impact 14572 CD CD CD 9 Resistance to abrasion 14572 CD CD CD 10 Heat ageing 10.1 Long term ageing, 3000 h 14572 A A A 10.2 Short term age
32、ing, 240h 14572 AB AB AB 10.3 Shrinkage by heat of sheath 14572 CD CD - - CD 11 Resistance to chemicals - 11.1 Fluid compatibility of sheath 14572 AC AC AC 11.2 Durability of sheath marking 14572 CD CD CD 11.3 Resistance to ozone of sheath 14572 C C C 11.4 Temperature and humidity cycling 14572 C C
33、C 12 Resistance to flame prop. 14572 AB AB AB 13 Artificial weathering 14572 C C C aA - Initial certification bB - Periodic certification: The frequency of periodic testing will be established by agreement between customer and supplier. cC - Initial certification if required: The usage of “If requir
34、ed” tests will be established by agreement between customer and supplier. dD - Periodic certification if required: The frequency of periodic testing and usage of “If required” tests will be established by agreement between customer and supplier. eE - In process: A test made on all cable during or af
35、ter manufacture. NOTE Fluid compatibility of sheath - Some fluids are for “Certification” and others are “If required”. See 11.1 for details. DD ISO/TS 16553:20064 5.4.4 Procedure The test sample shall be fastened to prevent untwisting. The length of five lays shall be measured, where one lay is the
36、 axial length of one complete turn of the helix of a core in the twisted pair. The measured value shall be divided by five to determine the average length of lay. 5.4.5 Requirement The average length of lay shall be within the values established by agreement between customer and supplier. 6 Electric
37、al characteristics 6.1 Continuity This shall be according to 6.1 of ISO/DIS 14572. 6.2 Withstand voltage This shall be according to 6.2 of ISO/DIS 14572. 6.3 Characteristic impedance 6.3.1 General The usage of this test will be established by agreement between customer and supplier. 6.3.2 Test sampl
38、e 50 mm of sheath shall be removed from each end of a 3 m completed cable and 12 mm from each end of the cores. 6.3.3 Apparatus An impedance analyzer with an impedance matching balanced/unbalanced transformer (BALUN) shall be used to convert the 50 unbalance input to ZNbalanced output and a ZNresist
39、or where ZNis the required nominal impedance of the cable in . A BALUN should be used if an unbalanced test method is used to evaluate a balanced cable. 6.3.4 Procedure Calibration (refer to equipment manufacturers recommended calibration procedure): Connect the unbalanced input of the BALUN to the
40、impedance analyzer. Set the impedance analyzer frequency to 1 MHz. Measure the resistance of the calibrated resistor RR(should be approximately ZN). Connect the calibration resistor to the balanced terminals of the BALUN and record the impedance reading ZR(should be approximately 50 ). DD ISO/TS 165
41、53:20065Measurement: Connect the test sample to the balanced terminals of the BALUN (connect screen, if any, to analyser ground). Measure the impedance with the signal cores open circuited and record as ZO. Short the signal cores together and record as ZS. Calculate the cables characteristic impedan
42、ce using the following formula. ROSRRZ ZZZ= where Z is calculated characteristic impedance of the cable in ; RRis measured resistance of the calibration resistor in ; ZRis measured impedance of the calibrated resistor in ; ZOis measured impedance of the test sample with the cores open circuited in ;
43、 ZSis measured impedance of the test sample with the cores short circuited in . 6.3.5 Requirement The characteristic impedance of the cable shall be established by agreement between customer and supplier. 6.4 Capacitance 6.4.1 Test sample Remove 50 mm of sheath and screen (if any) and 25 mm of outer
44、 conductor (for coaxial cables) from one end of a 3 m cable. Remove 12 mm of insulation from each of the cores. 6.4.2 Apparatus The test shall be performed with an impedance analyzer or equivalent set at 1 kHz. 6.4.3 Procedure This procedure eliminates the effects of stray capacitance. Measure the t
45、est sample length (L1). Twisted pair Measure the capacitance (C1) between the two cores. Twisted, screened pair Measure the capacitance (C1) between the two cores, the capacitance (CA1) between one of the cores and the screen, and the capacitance (CB1) between the other core and the screen. Coaxial
46、cable Measure the capacitance (C1) between the inner and outer conductors. Trim the test sample to 1 m and repeat the procedure. Measure the new test sample length (L2), the capacitance (C2), and the capacitances to screen (CA2) and (CB2) where applicable. Calculate the specific capacitance using th
47、e following formulae: 1212;CCCL L=A1 A2A12;CCCLL=B1 B2B12CCCLL=where DD ISO/TS 16553:20066 C is specific capacitance in pF/m; CAis specific capacitance between core “A” and screen in pF/m; CB is specific capacitance between core “B” and screen in pF/m; C1is capacitance between cores or conductors fo
48、r length L1in pF; C2is capacitance between cores or conductors for length L2in pF; CA1is capacitance between core “A” and screen for length L1in pF; CA2is capacitance between core “A” and screen for length L2in pF; CB1is capacitance between core “B” and screen for length L1in pF; CB2is capacitance b
49、etween core “B” and screen for length L2in pF; L1is initial test sample length in m; L2is second test sample length in m. 6.4.4 Requirement The values for C, CA, and CBshall be by agreement between customer and supplier. 6.5 Specific line delay The usage of this test shall be established by agreement between customer and supplier. 6.5.1 Test sample Remove 50 mm
