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1、 IEC 61196-1-208 Edition 1.0 2009-02 INTERNATIONAL STANDARD Coaxial communication cables Part 1-208: Environmental test methods Longitudinal pneumatic resistance IEC 61196-1-208:2009(E) Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1
2、111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or ut
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10、ot for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- IEC 61196-1-208 Edition 1.0 2009-02 INTERNATIONAL STANDARD Coaxial communication cables Part 1-208: Environmental test methods Longitudinal pneumatic resistance INTERNATIONAL ELECTROTECHNICAL
11、 COMMISSION G ICS 33.120.10 PRICE CODE ISBN 2-8318-1026-9 Registered trademark of the International Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reprod
12、uction or networking permitted without license from IHS -,-,- 2 61196-1-208 IEC:2009(E) CONTENTS FOREWORD.3 1 Scope.5 2 Normative references5 3 Terms and definitions .5 4 Test method .5 4.1 Equipment.5 4.2 Test specimen.6 4.3 Procedure6 5 Requirements .6 5.1 General .6 5.2 Details to be specified .6
13、 6 Test report6 Figure 1 Schematic test set-up .5 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- 61196-1-208 IEC:
14、2009(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ COAXIAL COMMUNICATION CABLES Part 1-208: Environmental test methods Longitudinal pneumatic resistance FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrot
15、echnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specificati
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19、national use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In or
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23、gal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this pu
24、blication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61196-1-208 has been prepared by subcommittee 46A: Co
25、axiable cables, of IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories. The text of this standard is based on the following documents: FDIS Report on voting 46A/922/FDIS 46A/929/RVD Full information on the voting for the appro
26、val of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not
27、 for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 61196-1-208 IEC:2009(E) A list of all parts of the IEC 61196 series, under the general title: Coaxial communication cables, can be found on the IEC website. The committee has decided that the
28、 contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended.
29、A bilingual version of this publication may be issued at a later date. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -
30、,-,- 61196-1-208 IEC:2009(E) 5 COAXIAL COMMUNICATION CABLES Part 1-208: Environmental test methods Longitudinal pneumatic resistance 1 Scope This part of IEC 61196 details a method of test to determine the longitudinal pneumatic resistance of coaxial communication cables protected by gas pressurisat
31、ion. 2 Normative references The following referenced documents are indispensable 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. IEC 60050-726, Intern
32、ational Electrotechnical Vocabulary Transmission lines and waveguides IEC 61196-1, Coaxial communication cables Part 1: Generic specification General, definitions and requirements 3 Terms and definitions For the purposes of this document, the definitions given in IEC 60050-726 and IEC 61196-1 apply.
33、 4 Test method 4.1 Equipment Pneumatic equipment to supply a regulated pressure of air to the test specimen, flow-meter, barometer and thermometer are needed. Other types of gas may be used if specified in the relevant cable specification. Test specimen Pneumatic equipment IEC 122/09 Figure 1 Schema
34、tic test set-up Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 61196-1-208 IEC:2009(E) 4.2 Test specimen The sp
35、ecimen is that of finished cable having a sufficient length to carry out the test specified. 4.3 Procedure The ambient temperature and barometric pressure shall be measured. The test specimen shall have one end connected to a pressure regulated source providing a steady state flow of air or other ty
36、pes of gas if specified in the relevant cable specification with a dryness of 5 % RH at 20 C. The other end of the cable shall be open to the atmosphere. The pressure applied across the cable shall be 62 kPa 2 % and the steady state air flow shall be recorded using a flow-meter calibrated to 10 %. O
37、ther pressures may be applied in accordance with particular user requirements and/or as specified in the detail specification. Only those air paths intended to be pressurised shall be used in the measurement. A second measurement shall be made with the air flow direction reversed and the results sha
38、ll be recorded separately. The pneumatic resistance is derived from Pneumatic resistance m s m kPa60 3 t = Lf P 4-t m s kPa 60 = Lf P where Pt is the test pressure (kPa); L is the specimen length (m); f is the flow (m3/s). 5 Requirements 5.1 General The pneumatic resistance shall comply with the max
39、imum value given in the relevant cable specification. 5.2 Details to be specified The detail specification shall mention: maximum pneumatic resistance; specimen length; pressure, if different from 62 kPa. 6 Test report The test report shall include: test conditions; ambient barometric pressure; ambi
40、ent temperature; pneumatic resistance in both directions; Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- 61196-1-
41、208 IEC:2009(E) 7 pass/fail criteria and the evaluation in this regard. _ Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IH
42、S -,-,- Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Electrotechnical Commission Provid
43、ed by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL ELECTROTECHNICAL COMMISSION 3, rue de Varemb PO Box 131 CH-1211 Geneva 20 Switzerland Tel: + 41 22 919 02 11 Fax: + 41 22 919 03 00 infoiec.ch www.iec.ch Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=HP Monitoring/1111111164 Not for Resale, 04/08/2009 03:59:43 MDTNo reproduction or networking permitted without license from IHS -,-,-
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