1、 IEC 61300-3-33 Edition 2.0 2012-02 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-33: Examinations and measurements Withdrawal force from a resilient alignment sleeve using gauge pins IEC 61300-3-33:2012(E) THIS PUBLICA
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9、tre: csciec.ch. IEC 61300-3-33 Edition 2.0 2012-02 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-33: Examinations and measurements Withdrawal force from a resilient alignment sleeve using gauge pins INTERNATIONAL ELECTR
10、OTECHNICAL COMMISSION L ICS 33.180.20 PRICE CODE ISBN 978-2-88912-935-5 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 61300-3-33 IEC:2012(E) CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative r
11、eferences . 5 3 General description 5 4 Apparatus . 6 4.1 General . 6 4.2 Test unit 6 4.3 Gauge pins 6 4.4 Solvent 7 5 Test set up . 7 6 Procedure 7 6.1 General . 7 6.2 Testing 7 7 Calculation or interpretation of results 8 8 Details to be specified 8 Annex A (normative) Loading velocity 9 Annex B (
12、informative) Round-robin test results of zirconia alignment sleeves 10 Figure 1 Test unit with applied force on the gauge pin . 6 Figure B.1 Test unit . 11 Figure B.2 Round-robin test results 11 61300-3-33 IEC:2012(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES
13、AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 3-33: Examinations and measurements Withdrawal force from a resilient alignment sleeve using gauge pins FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all nat
14、ional electrotechnical 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, Technic
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22、al injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal 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 refer
23、ences cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 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
24、identifying any or all such patent rights. International Standard IEC 61300-3-33 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This second edition cancels and replaces the first edition published in 199
25、9. It constitutes a technical revision. The changes with respect to the previous edition are to reconsider the entire document according to the updated IEC rules and to add a gauge and a solvent into Clause 4, and to add a general subclause and cleaning procedure into Clause 6. 4 61300-3-33 IEC:2012
26、(E) The text of this standard is based on the following documents: CDV Report on voting 86B/3221/CDV 86B/3289/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with t
27、he ISO/IEC Directives, Part 2. A list of all the parts in the IEC 61300 series, under the general title Fibre optic interconnecting devices and passive components Basic test and measurement procedures, can be found on the IEC website. The committee has decided that the contents of this publication w
28、ill remain unchanged until the stability 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. A bilingual version of this publication
29、may be issued at a later date. 61300-3-33 IEC:2012(E) 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 3-33: Examinations and measurements Withdrawal force from a resilient alignment sleeve using gauge pins 1 Scope This part of IEC 61300 describ
30、es the procedure to measure the withdrawal force between the ferrule (gauge pin) of the plug connector and the resilient alignment sleeve of the adapter. The gauge pin should have the same shape (chamfer) like the normal ferrules described in the optical interface, see IEC 61755-3 series and IEC 617
31、54 series. This measurement procedure is applicable to single-fibre cylindrical ferrule optical connectors. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the editi
32、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61300-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 1: General and guidance IEC 61754 (all parts), Fibre optic co
33、nnector interfaces IEC 61755-3 (all parts), Fibre optic connector optical interfaces IEC/TR 62627-01, Fibre optic interconnecting devices and passive components Part 01: Fibre optic connector cleaning methods 3 General description The contact force between the mating ferrules in a fibre optic connec
34、tor is the difference between the breakaway friction force and the spring force of the connector. To maintain contact, the breakaway friction force must remain below the spring force. The ferrule withdrawal force is the highest force (breakaway force) required to remove one of the ferrules from the
35、sleeve of a fibre optic connector. The mechanics of friction result in significant variations in the measurement of breakaway friction force. The criteria to be applied to the results of these measurements must account for the spread that is inherent in the mechanism being measured (see Annex B). 6
36、61300-3-33 IEC:2012(E) 4 Apparatus 4.1 General The specimen is a resilient sleeve of a connector set. The measurement is made with two gauge pins inserted so that they meet at the centre of the sleeve. Force is applied to the end of one of the gauge pins as shown in Figure 1. Sleeves Gauge pin assem
37、bly Stop b a F IEC 174/12 Key a, b Gauge pin F Withdrawal force Figure 1 Test unit with applied force on the gauge pin 4.2 Test unit A force is applied to the gauge pin with a force generator that applies a continuously increasing force and is equipped with a force gauge to record the peak force tha
38、t occurs at breakaway (see Annex A). The test unit is a sleeve with two gauge pins inserted so as to touch at the centre of the sleeve. The interface between the two gauge pins shall be located within 10 % of the length of the sleeve from the centre of the sleeve itself. 4.3 Gauge pins The gauge pin
39、s may be solid pins or connector ferrules that meet the gauge pin requirements. The gauge pin assembly consists of the gauge pin and a fixture for the application of load. The gauge pin is generally produced to the maximum material size of the resilient feature. The gauge pin shall be defined in the
40、 relevant specification. The definition shall include dimensions, material, surface hardness, roughness for the area of the gauge in contact with the resilient member and cylindricity. The requirements for the gauge pin are as follows: a) diameters of the gauge pins shall be as specified in the rele
41、vant specification; b) the diameter of the two gauge pins used in a given test shall be within 0,5 m of each other; c) the lengths of each gauge pin shall be sufficient to allow it to extend half-way into the sleeve and have enough left protruding out of the sleeve to allow for the attachment of a f
42、ixture or force generator; 61300-3-33 IEC:2012(E) 7 d) the end of the gauge pin that is inserted shall have a nominal 45 chamfer to a depth of 0,1mm (breaking the edge of the gauge pin). e) the following normative values shall be used where the parameters are not defined in the relevant specificatio
43、n: zirconia ceramics shall be the material used; surface finish (Ra) and roundness shall be within 0,2 m and 0,5 m, respectively. 4.4 Solvent Prior to testing, each resilient alignment sleeve and gauge pin shall be cleaned by wiping, using for example lint-free wipes and swabs. The cleaning action s
44、hall consist of thorough rubbing or scrubbing. Moistening wipes should be avoided. If moistening is necessary, following cleaning, resilient alignment sleeve and gauge pins are preconditioned at 40 C for 0,5 h and then returned to room temperature for at least 0,5 h. As solvent it is recommended to
45、use IPA (isopropyl alcohol), see also IEC/TR 62627-01. It is recommended to choose solvents and cleaning agents in the observance of safety rules. 5 Test set up Force is applied to the end of one of the gauge pins and to the edge of the sleeve as shown in Figure 1. The test fixture shall be such tha
46、t only two forces are applied to the moving gauge pin: the force withdrawing the pin, and the frictional force between the gauge pin and the sleeve. The force on the pin should be applied along the axis of the sleeve, as shown in Figure 1. The linkage through which force is applied to the gauge pin
47、assemblies shall not apply a bending load. Either swivel joints or flexible members are recommended when a load is applied to the gauge pin assemblies. The sleeves shall be reversed for a second set of measurements. 6 Procedure 6.1 General The measurement is made using a force generator. Force is ap
48、plied to one gauge pin, in order to extract it while the other gauge pin remains in place. During the test the resilient sleeve shall be free to move in radial direction. 6.2 Testing Effort should be taken during the test to avoid any contamination of the sleeves or gauges. To compensate for the wei
49、ght of the test fixture, the indicator on the force gauge shall be adjusted to zero. Force is to be applied at a continuous rate (see Annex A). The maximum force applied to the gauge pin shall be recorded during extraction of the first third part of the whole length of the gauge pin inserted into the sleeve. 8 61300-3-33 IEC:2012(E) Unless otherwise specified, an equal number of measurements shall be made from each end of the sleeve. 7 Calculation or interpretation of r
