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1、BRITISH STANDARD BS EN 60966-2-1:1996 IEC 966-2-1: 1991 Radio frequency and coaxial cable assemblies Part 2-1: Sectional specification for flexible coaxial cable assemblies The European Standard EN 60966-2-1:1995 has the status of a British Standard ICS 33.120.10 Licensed Copy: sheffieldun sheffield
2、un, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60966-2-1:1996 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 August 1996 BSI 11-19
3、98 The following BSI references relate to the work on this standard: Committee reference EPL/46/1 Draft announced in BSI News Update May 1996 ISBN 0 580 26024 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/46, Cabl
4、es, wires and waveguides, RF connectors and accessories for cabling and signalling, to Subcommittee EPL/46/1, Communication cables, upon which the following bodies were represented: AEA Technology British Approvals Service for Cables British Broadcasting Corporation British Cable Makers Confederatio
5、n British Railways Board British Telecommunications plc Cable Communication Association Confederation of Aerial Industries ERA Technology Federation of the Electronics Industry London Underground Ministry of Defence Society of Cable Television Engineers Amendments issued since publication Amd. No.Da
6、teComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60966-2-1:1996 BSI 11-1998i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 60966-2-15 List of referencesInside back cover Licen
7、sed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60966-2-1:1996 ii BSI 11-1998 National foreword This British Standard has been prepared by Subcommittee EPL/46/1 and is the English language version of EN 60966-2-1:1995, Radio frequency and c
8、oaxial cable assemblies. Part 2-1: Sectional specification for flexible coaxial cable assemblies, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 966-2-1:1991 published by the International Electrotechnical Commission (IEC). A British Stan
9、dard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding B
10、ritish Standard HD 323.2.6 S2:1988BS EN 60068 Environmental testing (IEC 68-2-6:1982 + A1:1983 + A2:1985) BS EN 60068-2-6:1996 Test Fc. Vibration (sinusoidal) HD 405.1 S1:1983BS 4066 Tests on electric cables under fire conditions (IEC 332-1:1979)Part 1:1980 Methods of test on a single vertical insul
11、ated wire or cable EN 60966-1:1993 (IEC 966-1:1988 + A1:1990) BS EN 60966 Generic specification for radio frequency and coaxial cable assemblies Part 1:1993 General requirements and test methods Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN tit
12、le page, pages 2 to 14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00
13、:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60966-2-1 January 1995 ICS 33.120.20 Descriptors: Radio frequency flexible coaxial cable assemblies, sectional specification English version Radio frequency and coaxial cable assemblies Part 2-1: Sectional spec
14、ification for flexible coaxial cable assemblies (IEC 966-2-1:1991) Ensembles de cordons coaxiaux et de cordons pour frquences radiolectriques Partie 2-1: Spcification intermdiaire pour cordons coaxiaux souples (CEI 966-2-1:1991) Konfektionierte Koaxial- und Hochfrequenz-Kabel Teil 2-1: Rahmenspezifi
15、kation fr flexible konfektionierte Koaxialkabel (IEC 966-2-1:1991) This European Standard was approved by CENELEC on 1994-12-06. CENELEC 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 sta
16、ndard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any ot
17、her language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, German
18、y, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secre
19、tariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC members Ref. No. EN 60966-2-1:1995 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60966-2-1:1995 BSI 11-1998 2 Foreword The text of the International Standa
20、rd IEC 966-2-1:1991, prepared by SC 46A, Coaxial cables, of IEC TC 46, Cables, wires, waveguides, R.F. connectors, and accessories for communication and signalling, was submitted to the formal vote and was approved by CENELEC as EN 60966-2-1 on 1994-12-06 without any modification. The following date
21、s were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop)
22、1995-12-15 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1995-12-15 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60966-2-1:1996 BSI 19983 Contents Page Foreword2 Section 1. General 1Scope
23、5 2Object5 3Related documents5 4Definitions5 4.1Flexible coaxial cable assembly5 5Design and manufacturing requirements5 5.1Cable design and construction5 5.2Connector design and construction5 5.3Outline and interface dimensions5 Section 2. Test methods 8General6 9Electrical tests6 9.1Reflection pro
24、perties6 9.4Insertion loss stability6 9.6Stability of electrical length6 9.7Phase difference7 9.8Phase variation with temperature7 10Mechanical robustness tests8 10.2Flexure8 11Environmental tests8 11.1Recommended severities8 11.2Vibration, bumps and shock8 11.3Climatic sequence8 11.4Damp heat, stea
25、dy state8 11.5Rapid change of temperature8 11.6Solvents and contaminating fluids8 11.7Water immersion8 11.8Salt mist and sulphur dioxide tests8 12Specialised test method8 12.1Flammability8 Section 3. Test schedules 13Test schedules9 13.1General9 13.2Qualification approval procedures11 13.3Recommende
26、d qualification test schedule 11 13.4Capability approval procedures11 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications 14 Figure 1 Example of a cable assembly6 Figure 2 Arrangements for testing insertion loss stab
27、ility and stability of electrical length7 Page Figure 3 Arrangement d) for testing stability of electrical length7 Figure 4 Preferred arrangement for the vibration test9 Table 1 Grouping of tests for specification purposes 10 Table 2 Test schedule 12 Licensed Copy: sheffieldun sheffieldun, na, Sat N
28、ov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60966-2-1:1995 BSI 11-19985 Section 1. General 1 Scope This sectional specification relates to flexible coaxial cable assemb
29、lies operating in the transverse electromagnetic mode (TEM). It shall be used together with IEC 966-1: Generic specification for radio frequency and coaxial cable assemblies. The numbering of the subclauses is the same as in the generic specification; for the missing subclauses, see the generic spec
30、ification. 2 Object This sectional specification establishes uniform requirements for testing the electrical, mechanical and climatic properties of flexible cable assemblies composed of flexible coaxial cables and coaxial connectors. This sectional specification shall be supplemented with detail spe
31、cifications giving additional details as required by the particular application. 3 Related documents IEC 68-2-6:1970 (fourth edition), Environmental testing, Part 2: Tests, Test Fc and guidance: Vibration (sinusoidal). IEC 96, Radio frequency cables. IEC 96-2:1988, Radio frequency cables, Part 2: Re
32、levant cable specifications. IEC 332-1:1979, Tests on electric cables under fire conditions, Part 1: Test on a single vertical insulated wire or cable. IEC 410:1973, Sampling plans and procedures for inspection by attributes. IEC 966-1:1988, Generic specification for radio frequency and coaxial cabl
33、e assemblies. Part 1: General requirements and test methods. IEC 966-1:1990, Amendment No. 1. IEC QC 001002:1986, Rules of Procedure of the IEC quality assessment system for electronic components (IECQ). 4 Definitions 4.1 flexible coaxial cable assembly a combination of a flexible cable and connecto
34、rs used as a single unit with specified performance NOTECable assemblies made in accordance with this sectional specification comprise a section of cable and two connectors. When specified in the detail specification, the assembly may additionally include markers for identification of the assembly a
35、nd interconnecting ends. End caps and other accessories may also be specified. For the purpose of this sectional specification, a cable assembly is always regarded as an integral unit. All specifications apply to the finished assembly and not to individual and non-assembled parts thereof. 5 Design a
36、nd manufacturing requirements 5.1 Cable design and construction Whenever possible, cables shall conform to IEC 96-2. If required, the manufacturer may use additional protective tubing or cable deviating from IEC 96, in order to comply with the requirements of the detail specification. The materials
37、used in the cable shall be given as engineering information in the detail specification. 5.2 Connector design and construction The materials used in the connector shall be given as engineering information in the detail specification. 5.3 Outline and Interface dimensions The outine dimensions shall b
38、e in accordance with the detail specifications. If not further detailed, the specified length applies to the cable before stripping. The overall length of the assembly will be longer and depends on the connectors. If not indicated in the detail specification, the length tolerance shall be 1 % for ca
39、bles equal or longer than 300 mm and 3 mm for cables shorter than 300 mm. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60966-2-1:1995 6 BSI 11-1998 Section 2. Test Methods 8 General All test methods other than those indicated or descri
40、bed below are given in the generic or detail specification. 9 Electrical tests 9.1 Reflection properties Whilst the parameter return loss (Ar) is preferred, the reflection factor (r) or the VSWR may be specified, where 9.4 Insertion loss stability The test frequencies or frequency range shall be cho
41、sen such that the measured insertion loss is at least ten times higher than the resolution of the test system. In accordance with the flexibility characteristics of the cable assembly, one of the mechanical arrangements given in Figure 2 shall be used. The test may not be appropriate for short cable
42、 assemblies. Arrangements a) and b) provide for a transmission measurement by test methods 1 and 2. Arrangement c) provides for a reflection measurement by test method 3. Test methods 1, 2 and 3 are indicated in appendix B of IEC 966-1, Amendment No. 1. In addition to cable bending, arrangement a) i
43、mplies torsional twisting around its longitudinal axis of 360 per turn. During the measurement of insertion loss, the cable is first wound clockwise around the mandrel, released to the neutral position (starting position), wound counter-clockwise around the mandrel and again released to its starting
44、 position. The variation of insertion loss shall be recorded during these movements. For long cable assemblies, the number of turns shall be chosen such that, after winding, 20 % or more of the length of cable is in contact with the mandrel. The arrangement used shall be indicated in the detail spec
45、ification. Arrangement a) of Figure 2 is preferred. 9.6 Stability of electrical length Depending on the flexibility, the torsional characteristics and the length of the cable assemblies, one of the following methods may be used to determine the stability of the electrical length as a function of the
46、 mechanical constraints. Method I The mechanical arrangement a) of Figure 2 shall be used. During the measurement of the phase difference, the cable is first wound clockwise around a mandrel of diameter given in the detail specification. It is released to the neutral position (starting position), wo
47、und counter-clockwise around the mandrel and again released to its starting position. The variation of phase shall be recorded during these composite movements of twisting and bending. Figure 1 Example of a cable assembly Ar 20 log 10 r and VSWR 1r+() (1r ).= Licensed Copy: sheffieldun sheffieldun,
48、na, Sat Nov 11 09:30:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60966-2-1:1995 BSI 11-19987 Method II For cable assemblies which are torsionally stiff, method I may not be appropriate. The stability of electrical length as a function of bending and twisting shall then be measured independently
49、 in two different arrangements. Bending The mechanical arrangement b) of Figure 2 shall be used. During the measurement of the phase difference, the cable is first wound clockwise around the mandrel, then it is released to the neutral position (starting position), wound counter-clockwise around the mandrel and again released to its starting position. The variation of phase shall be recorded during these bending movements. Twisting The mechanical arrangement d) shown in Figure 3 shall be used. During the measurement of the phase differen