1、 TIA STANDARD FOTP-86 Fiber Optic Cable Jacket Shrinkage TIA-455-86 January 1983 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance ANSI/TIA/EIA-455-86-1983Approved: January 3, 1983Reaffirmed: February 8, 1990Re
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7、limitations before its use. (From Standards Proposal No. 3-4444-RF2, formulated under the cognizance of the TIA FO-4.2 Subcommittee on Optical Fibers and Cables).Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A.
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21、nse with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- I EIA 455-86 3 W 2595532 0054922 9 W I RS-455-86 Page 1 FOTP-86 FIBER OPTIC CABLE JACKET SHRINKAGE (From EIA. Standards Proposal No. 1559, formulated under the cognizance of EIA P-6.7 Working Group on Fib
22、er Optic Cables.) This FOTP forms a part of the latest revision of EIA Recommended Standard RS-455. 1, INTENT This method describes a procedure for determining the linear dimensional changes in extruded plastic cable jackets at elevated temperatures 2. TEST EQUIPMENT . 2.1 A mechanical convection ov
23、en capable of mainting a temperature within - t1OC over the range from 7OoC to 150OC. Scale graduated in 0.25 mm (0.01 inch) divisions, 30 cm (12 inchesj or more in length. 2.2 2.3 A temperature measuring device suitable to indicate the temperature the range for the test temperature used. Timer grad
24、uated in minutes and capable of timing the range of test intervals used. over 2.4 2.5 Heavy paper sheets approximately 40 cm x 40 cm (15 x 15 inches) with smooth, wrinkle- and crease-free surfaces. 2.6 Talc, fine ground. 3. TEST SAMPLE 3.1 The test specimen dimensions will depend on the cable jacket
25、 diameter and thickness. The method of specimen preparation should be specified in the cable Detail Specification. 3.2 If not otherwise specified, and if the cable diameter permits, slab specimens shall be cut from the jacket 5 cm (2 inches) long by 1.3 cm (0.5 inch) wide. The jacket thickness shall
26、 not be reduced in preparation of the slab unless specified in the Detail Specification. 3.3 Small diameter cable jackets may be cut as a section 15 cm (6 inches) long, or as specified, from a cable sample 1.0 meter (39 inches) long immediately prior to the test. 3.4 The specimen shall be marked wit
27、h reference marks in the direction of extrusion. These marks on slab specimens are to made at the mid-point of the width. Record the distance (Do) between the reference marks. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or net
28、working permitted without license from IHS-,-,-! EIA i.155-b 3 W 2595532 0054723 O W s RS-455-86 Page 2 4. TEST PROCEDURE 4.1 4.2 4.3 4.4 4.5 Unless otherwise specified, the cable sample shall be conditioned for not less than 40 hours at standard conditions prior to specimen preparation. Place each
29、specimen on the heavy paper which has .been lightly dusted with talc. 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 f
30、or a period of not less than one hour unless it can be shown that shofter times yield equivalent results. 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). Calculate the linear shrinkage as a percent of the orig
31、inal length. Df - Do DO x 100 = Linear percent change Where: Df = Do = A negative value indicates shrinkage and a positive value indicates expansion. final length of specimen in mm (inch) original length of specimen in mm (inch) 5. DOCUMENTATION 5.1 The test data shall include the following: 5.1.1 5
32、.1.2 Title of test and date performed. Identification of the. source of specimen, cable, number, or other applicable data. . . 5.1.3 Test conditions. 5.1.4 Equipment used. 5.1.5 Results of the test in the direction of jacket extrusion and in the transverse direction, if specified. Copyright Telecomm
33、unications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA q55-6 3 W 2575512 005L1724 2 W RS-455-86 Page 3 6. SUMMARY 6.1 The following shall be specified in the Detail Specification for cable: 6.1.1 6.
34、1.2 6.1.3 6.1.4 6.1.5 Type of fiber optic cable to be tested. Procedure number (FOTP-86). Specimen preparation. A. Length of specimen. B. Type (slab or section). C. Test Conditions A. Conditioning B. Oven temperature C. Exposure time. Failure or Acceptance Criteria A. Allowable shrinkage B. Other re
35、quirements. Width and thickness of slab. i Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with E
36、IANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
