TIA-455-33-B-2005 FOTP-33 Optical Fiber Cable Tensile Loading and Bending Test《FOTP-33 光缆的拉伸负荷和折弯测试》.pdf

1、 TIA-455-33-B (Revision of EIA-455-33-A) January 2005FOTP-33 Optical Fiber Cable Tensile Loading and Bending Test ANSI/TIA-455-33-B-2005 APPROVED: JANUARY 10, 2005 REAFFIRMED: AUGUST 2, 2013 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminati

2、ng misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Standards and Publications shall not i

3、n any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA members, either domestically or internationally. Sta

4、ndards and Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. This Standa

5、rd does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use

6、. (From Project No. 3-4870-RV2-RF1-A-1, formulated under the cognizance of the TIA TR-42 Telecommunications Cabling Systems, TR-42.12 Subcommittee on Optical Fibers and Cables). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Technology (b) there is no assurance that the Document will be approv

7、ed by any Committee of TIA or any other body in its present or any other form; (c) the Document may be amended, modified or changed in the standards development or any editing process. The use or practice of contents of this Document may involve the use of intellectual property rights (“IPR”), inclu

8、ding pending or issued patents, or copyrights, owned by one or more parties. TIA makes no search or investigation for IPR. When IPR consisting of patents and published pending patent applications are claimed and called to TIAs attention, a statement from the holder thereof is requested, all in accor

9、dance with the Manual. TIA takes no position with reference to, and disclaims any obligation to investigate or inquire into, the scope or validity of any claims of IPR. TIA will neither be a party to discussions of any licensing terms or conditions, which are instead left to the parties involved, no

10、r will TIA opine or judge whether proposed licensing terms or conditions are reasonable or non-discriminatory. TIA does not warrant or represent that procedures or practices suggested or provided in the Manual have been complied with as respects the Document or its contents. If the Document contains

11、 one or more Normative References to a document published by another organization (“other SSO”) engaged in the formulation, development or publication of standards (whether designated as a standard, specification, recommendation or otherwise), whether such reference consists of mandatory, alternate

12、or optional elements (as defined in the TIA Engineering Manual, 4thedition) then (i) TIA disclaims any duty or obligation to search or investigate the records of any other SSO for IPR or letters of assurance relating to any such Normative Reference; (ii) TIAs policy of encouragement of voluntary dis

13、closure (see Engineering Manual Section 6.5.1) of Essential Patent(s) and published pending patent applications shall apply; and (iii) Information as to claims of IPR in the records or publications of the other SSO shall not constitute identification to TIA of a claim of Essential Patent(s) or publi

14、shed pending patent applications. TIA does not enforce or monitor compliance with the contents of the Document. TIA does not certify, inspect, test or otherwise investigate products, designs or services or any claims of compliance with the contents of the Document. ALL WARRANTIES, EXPRESS OR IMPLIED

15、, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NONINFRINGEMENT OF ANY THIRD PARTYS INTELLECTUAL PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AN

16、D ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE WITH ANY APPLICABLE STATUTE, RULE OR REGULATION, OR THE SAFETY OR HEALTH EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE REFERRED TO IN THE DOCUMENT OR PRODUCED OR R

17、ENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS

18、OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF

19、 THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-455-33-B FOTP-33 OPTICAL FIBER CABLE TENSILE LOADING AND BENDING TEST Contents Section Page Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii 1. I

20、NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. NORMATIVE REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3. APPARATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4. SAMPLING AND SPECIMENS . . . . . . . . . .

21、 . . . . . . . . . . . . . . 3 5. PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6. CALCULATIONS OR INTERPRETATIONS OF RESULTS . . . 6 7. DOCUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8. SPECIFICATION INFORMATION . . . . .

22、. . . . . . . . . . . . . . . . 7 ANNEX A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Page i TIA-455-33-B This page left blank Page ii TIA-455-33-B FOTP-33 OPTICAL FIBER CABLE TENSILE LOADING AND BENDING TEST Foreword (This foreword is informative only

23、and is not a part of this standard.) (From EIA Standard Proposal No. 4870, formulated under the cognizance of the TIA FO-6.7 Subcommittee on Optical Fiber Cable.) NOTE: This FOTP was previously published in Recommended Standard EIA-455-33. This FOTP is a part of the series of test procedures include

24、d within Recommended Standard TIA/EIA-455. Key Words: tensile test optical fiber cable tensile test Page iii TIA-455-33-B This page left blank Page iv TIA-455-33-B FOTP-33 OPTICAL FIBER CABLE TENSILE LOADING AND BENDING TEST 1. INTRODUCTION This test is intended to verify the ability of an optical f

25、iber cable to perform satisfactorily as required by Detail Specifications (a) while undergoing tensile and bending forces and (b) after undergoing tensile and bending forces. NOTE: This procedure is frequently used in concert with FOTP-38, Measurement of Fiber Strain in Cables Under Tensile Load. Us

26、ers are cautioned that the Detail Specification generally inserts specific steps from FOTP-38 into the procedure of this FOTP. 2. NORMATIVE REFERENCES The following documents form a part of this FOTP to the extent specified herein: EIA/TIA-455-B Standard test procedures for fiber optic fibers, cable

27、s, transducers, sensors, connecting devices and other fiber optic components FOTP-20 (TIA/EIA-455-20A) Measurement of Change in Optical Transmittance FOTP-38 (TIA/EIA-455-38) Measurement of Fiber Strain in Cables Under Tensile Load FOTP-61 (TIA/EIA-455-61A) Measurement of Fiber or Cable Attenuation

28、Using an OTDR FOTP-78 (TIA/EIA-455-78B) Spectral Attenuation for Cutback Measurements for Single-mode Optical Fibers 3. APPARATUS 3.1 A suitable device for measuring optical power transmission is required. (See paragraph 5.3). 3.2 A suitable device is necessary to apply a tensile load to the test ca

29、ble. An example of the basic testing apparatus and test set-up is shown schematically, in Figure 1. Unless otherwise specified by the Detail Specification, the test equipment shall be as specified in 3.2.1-3.2.7: Page 1 TIA-455-33-B Pulling Gear Direction of Applied Force Cable Ends 15 25 m typical(

30、50 80 ft) B A Fixed MandrelRotating Sheaves Load Cell Optical Test EquipmentFIGURE 1- Optical Fiber Cable Tensile Loading and Bending Test 3.2.1 One end of the test apparatus (End B) shall essentially consist of a minimum of three rotating sheaves mounted on an axle. 3.2.2 The other end of the test

31、apparatus (End A) shall essentially consist of a minimum of two rotating sheaves mounted on an axle. 3.2.3 Unless otherwise specified by the Detail Specification, the sheave diameter shall be less than or equal to 40X the cable outside diameter. For cables less than 14 mm (0.55 in) in outer diameter

32、, a universal sheave diameter of 560 mm (22 in) may be used. 3.2.4 Two fixed-position mandrels shall be used, one on each end of the cable sample under test, to couple the optical fibers to the other cable components, and to apply the tensile force to the cable. Note: Another common test set-up is t

33、o mount the fixed mandrels on the same movable axel as the sheaves specified in 3.2.2. See subclause 5.6 for guidance on loading different test set-up configurations. 3.2.5 The mandrels used to couple the fiber and cable shall be large enough to avoid inducing loss in the cable wrapped around them.

34、Page 2 TIA-455-33-B 3.2.6 The length between ends A and B (see Figure 1) of the test apparatus shall be such that a minimum total sample length of 100 meters (330 feet) can be achieved with a minimum of five turns of cable. 3.2.7 The tensile load shall be applied by a tensile machine or similar devi

35、ce, with the applied force measured by a load cell or dynamometer having a minimum accuracy of 5% of the total tensile load to be applied. NOTE: Alternative test configurations are acceptable provided that the required total length to be stressed can be accommodated and the required tensile loads ca

36、n be attained and properly distributed throughout the cable. For example, additional sheaves could be used with more strands to reduce the total length of the apparatus; also, all sheaves could be mounted on fixed shafts with force applied to pull only one cable end. 4. SAMPLING AND SPECIMENS The ca

37、ble length under tensile load shall be as per 3.2.6. 5. PROCEDURE 5.1 Overview 5.1.1 Measurement condition definitions Test Condition Designation TEST SPECIMEN CONFIGURATION I II III Unloaded (before any loading) X Loaded (load applied) X Cable Specimen in test configuration (wound on sheaves and ma

38、ndrels per Figure 1) Unloaded (after load has been relieved) X Page 3 TIA/EIA-455-33-B 5.1.2 Test Conditions 5.1.2.1 Test Condition I provides the optical power transmission of the cable in the extended, non-loaded condition on the tensile tester. 5.1.2.2 Test Condition II is used to determine optic

39、al changes produced by continuous (static) loading as might be expected during cable use. Test Condition II may be a single load or a set of loads. The default Test Condition II loading for this procedure is to apply the lowest load subsequently followed by increasingly higher loads at which optical

40、 measurements are to be made. In cases where a high load is designed to represent a rated installation load, and a correspondingly lower load is to represent post-installation loading, the higher load shall be applied first. Note: Results from Test Condition II allow a comparison and points out chan

41、ges in optical power transmission and attenuation between the non-loaded versus loaded test conditions. 5.1.2.3 Test Condition III is a check to assure that any changes induced by short-term loading are reversible. 5.1.3 Measurement conditions and performance limits shall be as established by approp

42、riate individual Detail Specifications, depending upon design and intended application of the particular fiber optic cable. 5.2 Unless otherwise specified, the test cable shall be preconditioned for 24 hours at standard atmospheric conditions as outlined in Recommended Standard EIA/TIA-455B and test

43、ed under these conditions. 5.3 Attenuation Change Measurement The cable shall be prepared and tested to check for changes in optical transmittance in accordance with FOTP-20. Alternatively, methods that measure attenuation such as FOTP-78 may be used and the results converted to transmittance values

44、. Methods other than FOTP-20 shall be used only if they provide procedures for measuring at specific wavelengths and are capable of accurately measuring attenuation/transmittance differences smaller than the requirements of the Detail Specification (refer to Paragraphs 5.5 through 5.8) while the cab

45、le undergoes the Tensile Loading Test. 5.4 Set Up for All Test Conditions 5.4.1 Feed the cable through and around the sheaves and mandrels. The minimum 100 meters (330 feet) tensile load length would involve at least five sheaves and two mandrels for a minimum total of five turns of cable between th

46、e two ends of the test apparatus. Make a sufficient number of turns (three turns minimum are recommended) of the cable around both fixed mandrels to ensure that the cable will remain in place without slipping during tensile Page 4 TIA-455-33-B loading. Note that it is intended that the cable cross-s

47、ection should remain fixed during the test (e.g., core should not slip within the jacket). Allow for a short length of cable (approximately 4 meters or approximately 15 feet) at both cable ends to permit accessing optical test equipment. After the cable length is in place, the cable weight will prod

48、uce a slight tension, which should not exceed 1% of the total test load. 5.4.2 Attach both ends of the cable to the optical test equipment. 5.5 Test Condition I Using the test set up of paragraph 5.4, and with no tensile load applied to the cable, measure the optical power transmission in accordance

49、 with paragraph 5.3. 5.6 Test Condition II Apply the tensile load specified by the Detail Specification (See 5.6.1 5.6.3). If more than one load is to be applied, apply the minimum load first, unless otherwise specified in the Detail Specification. In applying the load, ensure that each strand is subjected to the specified load. Unless otherwise specified, the time needed to reach this required load must be sufficient to prevent jerking or any near-instantaneous loading. Maintain the required load for the specified period of time. After the appropriate time, and with the sp