ANSI TIA-455-86-A-2014 FOTP-86 Optical Fiber Cable Jacket Shrinkage.pdf

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1、 TIA-455-86-A (Revision of TIA-455-86) December 2014FOTP-86 Optical Fiber Cable Jacket Shrinkage ANSI/TIA-455-86-A-2014 APPROVED: DECEMBER 5, 2014 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers a

2、nd 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 in any respect preclude any member or non-mem

3、ber 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. Standards and Publications are adopted by TIA i

4、n 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 Standard does not purport to address all safety pr

5、oblems 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. Any use of trademarks in this document are

6、 for information purposes and do not constitute an endorsement by TIA or this committee of the products or services of the company. (From Project No. ANSI/TIA-PN-455.86-A-D1, formulated under the cognizance of the TIA TR-42 Telecommunications Cabling Systems, TR-42.12 Subcommittee on Optical Fibers

7、and Cables). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Technology and Standards Department 1320 N. Courthouse Road, Suite 200 Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call IHS

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20、ARDING 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 RENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRE

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23、TIA-455-86A i FOTP-86 OPTICAL FIBER CABLE JACKET SHRINKAGE Foreword (This Foreword is informative and not part of the Standard.) This Standard is from Project Proposal No. ANSI/TIA-PN-455.86-A, formulated under the cognizance of the TIA TR-42.12 Subcommittee on Optical Fibers and Cables. This FOTP f

24、orms a part of the latest revision of Recommended Standard TIA-455. NOTE: This FOTP was previously published in EIA Recommended Standard RS-455 as EIA/TIA-455-86. This revision is a fundamental change in the preferred methodology for testing cable jacket shrinkage. The original version of this test

25、method was a jacket-only test, generally following ASTM D 4565, clause 14.2. Thus, it was a test of the native shrinkage of the as-extruded jacket material. This revision is a complete cable test, following ICEA S-87-640 and similar U.S. National Standards. This tests the shrinkage characteristics o

26、f an entire cable sectionincluding the core, strength members, and other componentswhich usually affect the shrinkage of the outer jacket. The difference in the two versions lies in the definition of the test specimen. The details of the original test procedure are preserved in Annex A for the conve

27、nience of users wishing to specify the original test. The revised Scope also refers to IEC 60794-1-22, method F11, for those cases where characterization of jacket shrinkage over time is required. There is one normative Annex. Key words: jacket, shrinkage. ANSI/TIA-455-86A ii This page blank. ANSI/T

28、IA-455-86A 1 FOTP-86 OPTICAL FIBER CABLE JACKET SHRINKAGE 1 INTRODUCTION 1.1 This method describes a procedure for determining the linear dimensional changes in extruded plastic cable jackets due to exposure at elevated temperatures while in place on a cable. 1.2 The primary use of the test procedur

29、e is evaluation of optical fiber cables. Results of this testing can inform decisions of the performance of cables in closures, connectors, or other terminations. Testing of the basic morphological changes in the extruded jacket material, independent of the cable structure, is addressed in Annex A (

30、normative) in order to clarify the test procedures. This Annex comprises the test procedure details of the original FOTP-86. 1.3 The intent of this procedure is to determine compliance of a cable specimen at a specified temperature for a specified period of time. Users who desire to characterize the

31、 time-response of a cable specimen at elevated temperatures should consider using IEC 60794-1-22, method F11, “Sheath shrinkage (cables intended for patch cords)”. 2 NORMATIVE REFERENCES There are no normative references in this test procedure. 3 APPARATUS The following test equipment is required fo

32、r this procedure. Equivalent devices meeting the intent of this procedure may be substituted. 3.1 A mechanical convection oven capable of maintaining a temperature within 1 C, over the range from 70 C to 150 C. 3.2 A linear scale graduated in 0.25 mm (0.01 inch) divisions, 30 cm (12 inches) or more

33、in length. 3.3 A temperature measuring device suitable to indicate the temperature over the range for the test temperature used. 3.4 Timer graduated in minutes and capable of timing the range of test intervals used. 3.5 Heavy paper sheets approximately 40 cm x 40 cm (15 x 15 inches) with smooth, wri

34、nkle- and crease-free surfaces. ANSI/TIA-455-86A 2 3.6 Talc, fine ground. 4 SAMPLING AND SPECIMENS The test sample shall be a representative sample of the cable being tested. 4.1 Unless otherwise specified, the specimen(s) shall be a whole-cable section, with all components, including the core, in p

35、lace. The sections shall be 15 cm (6 in.) long and cut from a cable sample 1.0 meter (39 inches) long immediately prior to the test. Care must be taken to avoid artificially stretching the cable with the method used to cut the short section. 4.2 The specimen shall be marked with reference marks alon

36、g the longitudinal axis of the cable. The marks shall be made convenient positions as close as practical to the ends of the specimen. The marks shall not damage the cable jacket. Measure and record the distance (Do) between the reference marks. 4.3 Alternative, if specified, the test specimen shall

37、comply with the requirements of Annex A. 5 PROCEDURE 5.1 Unless otherwise specified, the cable sample shall be conditioned for not less than 24 hours at standard ambient conditions prior to specimen preparation. 5.2 Place each specimen on the heavy paper which has been lightly dusted with talc. 5.3

38、Place the paper and specimens in the oven at the temperature and for the time period specified in the cable Detail Specification. At the end of the oven exposure period, recondition the specimens at room temperature and humidity for a period of not less than one hour unless it can be shown that shor

39、ter times yield equivalent results. 5.4 Measure and record the distance (Df) between the opposite edges of the specimen at the reference marks to the nearest 0.25 mm (0.01 inch). ANSI/TIA-455-86A 3 6 INTERPRETATION OF RESULTS Calculate the linear shrinkage as a percent of the original length. Df - D

40、o x 100 = Linear percent change Do Where: Df = final length of specimen in mm (inch) Do = original length of specimen in mm (inch) A negative value indicates shrinkage and a positive value indicates expansion. 7 DOCUMENTATION The test data shall include the following: 7.1 Title of test and date perf

41、ormed. 7.2 Identification of the source of specimen, cable, number, or other applicable data. 7.3 Test conditions. 7.4 Equipment used. 7.5 Results of the test in the direction of jacket extrusion and in the transverse direction, if specified. 8 SPECIFICATION INFORMATION The following information sha

42、ll be provided in the Detail Specification: 8.1 Type of fiber optic cable to be tested. 8.2 Procedure number (FOTP-86). 8.3 Specimen preparation. 8.3.1 Length of specimen, if other than as specified herein. 8.3.2 If Annex A is used: - Type (slab or section). -Width and thickness of slab. ANSI/TIA-45

43、5-86A 4 8.4 Test Conditions - Conditioning - Oven temperature - Exposure time. 8.5 Failure or Acceptance Criteria - Allowable shrinkage - Other requirements. NOTE - Many specifications alloweither through explicit statement or inferenceuse of passing data using the criteria of Annex A to comply with

44、 requirements of testing using the whole-cable specimen. ANSI/TIA-455-86A 5 ANNEX A (normative) Test Procedure for Fiber Optic Cable Jacket Shrinkage Jacket-only Specimens The following comprises the test procedure, clause 4, Test Sample, for testing extruded cable jacket independent of the cable st

45、ructure. It is taken directly from FOTP-86, as originally published. For references to that revision, the clause 3; the subclauses were numbered 3.1 through 3.4. If specified, this clause is to be used in place of clause 4 of this procedure. A.4 SAMPLING AND SPECIMENS The test sample shall be a repr

46、esentative sample of the cable being tested. A.4.1 The test specimen dimensions will depend on the cable jacket diameter and thickness. The method of specimen preparation should be specified in the cable Detail Specification. A.4.2 If not otherwise specified, and if the cable diameter permits, slab

47、specimens shall be cut from the jacket 5 cm (2 inches) long by 1.3 cm (0.5 inch) wide. The jacket thickness shall not be reduced in preparation of the slab unless specified in the Detail Specification. A.4.3 Small diameter cable jackets may be cut as a section 15 cm (6 inches) long, or as specified,

48、 from a cable sample 1.0 meter (39 inches) long immediately prior to the test. A.4.4 The specimen shall be marked with reference marks in the direction of extrusion. These marks on slab specimens are to be made at the mid-point of the width. Record the distance (Do) between the reference marks. THE

49、TELECOMMUNICATIONS INDUSTRY ASSOCIATION TIA represents the global information and communications technology (ICT) industry through standards development, advocacy, tradeshows, business opportunities, market intelligence and world-wide environmental regulatory analysis. Since 1924, TIA has been enhancing the business environment for broadband, wireless, information technology, cable, satellite, and unified communications. TIA members products and services empower communications in every industry and market, including healthcare, education, security, public safety, tr

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