1、 TIA-455-74-A-2003 APPROVED: SEPTEMBER 1, 2003 REAFFIRMED: FEBRUARY 6, 2013 TIA-455-74-A (Revision of TIA-455-74) THIS STANDARD REPLACES TIA/EIA-455-75-A) September 2003FOTP- 74 IEC-60793-1-53 Optical Fibres- Part 1-53: Measurement Methods and Test Procedures- Water Immersion NOTICE TIA Engineering
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19、 DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. FOREWARD With the adoption of international standard IEC 60793-1-53 (Optical Fibres Part 1-53: Measurement Methods and Te
20、st Procedures Water Immersion) TIA-455-74-A supercedes the current TIA/EIA-455-74 (FOTP-74 Fluid Immersion Aging Procedure for Optical Fiber Optical Properties), and replaces TIA/EIA-455-75-A (FOTP-75 Fluid Immersion Test for Optical Waveguide Fibers). This action was taken under the cognizance of t
21、he TIA-FO-4.6 Subcommittee on Optical Fibers. IEC 60793-1-53 adopted as TIA-455-74-A iCONTENTS FOREWORD ii INTRODUCTION .iv 1 Scope 1 2 Normative references .1 3 Apparatus 1 3.1 Water tank 1 3.2 Other apparatus 2 4 Sampling and specimens2 5 Procedure 2 5.1 Measurements.2 5.1.1 Optical measurements .
22、2 5.1.2 Mechanical measurements.2 5.2 Preconditioning .3 5.3 Conditioning 3 5.4 Recovery.3 6 Pass/fail criteria .3 7 Results.3 7.1 Information to be provided with each test.3 7.2 Information to be provided upon request 3 8 Specification information 3 IEC 60793-1-53 adopted as TIA-455-74-A iiINTERNAT
23、IONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 1-53: Measurement methods and test procedures Water immersion FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Comm
24、ittees). The object of the 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, the IEC publishes International Standards. Their preparation is entrusted to technical committ
25、ees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization f
26、or Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical comm
27、ittee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the National Committees in tha
28、t sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional
29、standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this
30、 International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60793-1-53 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This standard
31、, together with the other standards in the IEC 60793-1-5X series, cancels and replaces the first edition of IEC 60793-1-5, of which it constitutes a technical revision. The text of this standard is based on the following documents: FDIS Report on voting 86A/680/FDIS 86A/704/RVD Full information on t
32、he 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 the ISO/IEC Directives, Part 3. IEC 60793-1-53 adopted as TIA-455-74-A iiiIEC 60793-1-5X consists of the following parts, under the gene
33、ral title: Optical fibres: Part 1-50: Measurement methods and test procedures Damp heat (steady state) Part 1-51: Measurement methods and test procedures Dry heat Part 1-52: Measurement methods and test procedures Change of temperature Part 1-53: Measurement methods and test procedures Water immersi
34、on The committee has decided that the contents of this publication will remain unchanged until 2003. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. IEC 60793-1-53 adopted as TIA-455-74-A ivINTRODUCTION Publications in the IEC 60793-1 series c
35、oncern measurement methods and test procedures as they apply to optical fibres. Within the same series several different areas are grouped, as follows: parts 1-10 to 1-19: General parts 1-20 to 1-29: Measurement methods and test procedures for dimensions parts 1-30 to 1-39: Measurement methods and t
36、est procedures for mechanical characteristics parts 1-40 to 1-49: Measurement methods and test procedures for transmission and optical characteristics parts 1-50 to 1-59: Measurement methods and test procedures for environmental characteristics. IEC 60793-1-53 adopted as TIA-455-74-A 1OPTICAL FIBRES
37、 Part 1-53: Measurement methods and test procedures Water immersion 1 Scope This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment. The purpose of this standard is to define a test that determines the suitability of optical fibre (types A1a to A1
38、d and B1 to B4) to withstand the environmental condition of immersion in distilled or demineralized water which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of immersion in water over a given period. This procedure is conducte
39、d in accordance with IEC 60068-2-18, test Rc. NOTE The applicability of this test to other fibre types is under study. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60793. For dated referen
40、ces, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 60793 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references
41、, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60068-2-18, Environmental testing Part 2-1: Tests Test R and guidance: Water IEC 60793-1-32, Optical fibres Part 1-32: Measurement methods and
42、 test procedures Coating strippability IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-2, Optical fibres Part 2: Product specifications 3 Apparatus 3.1 Water tank The apparatus consists of a water tank filled with water. Use distilled, deminera
43、lised or de-ionised water which has a pH of between 5,0 and 8,0. IEC 60793-1-53 adopted as TIA-455-74-A 23.2 Other apparatus Additional apparatus may be necessary to perform the examinations and measurements (or as specified in the detail specification). 4 Sampling and specimens To ensure the requir
44、ed repeatability on optical measurements, the length of the specimen shall be at least 1 000 m for fibre types A1a to A1d, and at least 2 000 m for fibre types B1 to B4. The amount of the specimen outside of the tank shall be minimized, and if it exceeds 10 % of the overall specimen length, this sho
45、uld be reported. The preparation of the specimen shall have no detrimental effect on the fibre whilst under test conditions. Unless otherwise specified, the fibre sample should be loosely coiled and the fibre ends kept out of the water. The specimen may be coiled horizontally or vertically, with a m
46、inimum bend diameter of 150 mm to avoid any macro-bending effects. This piece of fibre shall be of sufficient length to enable any physical examinations to be performed before and after the test. A control length of the specimen shall be removed prior to the test to enable the completion of required
47、 mechanical measurements for comparison to measurements made after the test. 5 Procedure The specimen is placed in a tank which is filled with water held at 23 C 5 C, and held there for 30 days. The attenuation and coating strip force of the specimen are then monitored. Conduct the procedure in acco
48、rdance with IEC 60068-2-18, test Rc, with the “head of water” being not applicable (the head of water is used to test for “water tightness” of electrotechnical products, but it is not required in this application). 5.1 Measurements 5.1.1 Optical measurements Attenuation measurement shall be carried
49、out at the wavelength specified in the relevant specification using IEC 60793-1-40, before, during (once the specimen has stabilised at the specified temperature and relative humidity) and after the test. Attenuation changes shall be recorded. NOTE If the cut-back method (IEC 60793-1-40, Method A) is used, take care to track the length(s) cut over the series of measurements. If the insertion loss method (Method B) is used, the stability of the connections over time should be verified. If Method C is used, care should
