1、 TIA STANDARD FOTP-39 Optical Fiber Cable Water Wicking Test TIA-455-39-B (Revision of EIA/TIA-455-39-A) February 1999TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance ANSI/TIA/EIA-455-39-B-1999Approved: Februa
2、ry 8, 1999Reaffirmed: May 10, 2005Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Publications are designed to serve the public interest thr
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6、n. This Standard 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
7、before its use. (From Standards Proposal No. 3-3541-RF1, 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. PRICE: Plea
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21、ANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-EIA TIA/EIA-455-39B-ENGL 1997 I 3234b00 Ob21973 9T2 FOTP - 39 Optical fiber cable water wicking test Contents . Foreword . I I I I Introduction 1 2 Normative references . I 3 Apparatus 2 4 Sampling and specimens
22、 . 2 . 5 Procedure . 3 6 Calculations or interpretation of resuits 4 7 8 Documentation .5 Specification information 6 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA
23、/EIA-455-39B-ENGL 1779 3234600 0623974 839 TW455-39B -FOTP- 39 Optical fiber cable water wicking test Foreword (This foreword is informative only and is not part of this Standard.) This FOTP is from TTA Standards Proposal No. 3541 I formulated under the cognizance of TIA FO-6.7, Subcommittee on Fibe
24、r Optic Cable. This FOTP is part of the series of test procedures included within Recommended Standard EIATlA-455. NOTE - This FOTP was originally published in EIATIA-455-39A as FOTP-39. iii Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo repr
25、oduction or networking permitted without license from IHS-,-,- STD.EIA TIA/EIA-455-39B-ENGL 1799 3234b00 0623975 775 W TIA-455-39B FOTP- 39 Optical fiber cable water wicking test I introduction 1.1 Intent This procedure describes the method of measuring the water wicking characteristics of optical f
26、iber cables due to the hygroscopic nature of the materials contained within the cable. The amount of water wicking is measured in terms of a) the weight of water absorbed by the cable sample and b) the distance from the end of the cable that the water has migrated due to wicking action. 1.2 Scope Th
27、is procedure is generally not intended for use on cables containing water swellable tapes, powders, or yarns. Swellable materials must absorb water in order to swell and build a block to further penetration of water. This test method may be used to look at the water wicking characteristics of such c
28、ables, however it must be understood that a certain amount of water absorption is necessary for such cables to pass water penetration requirements. 2 Normative references Test or inspection requirements may include, but are not limited to, the following references: EIA/TIA-455-A, Standard test proce
29、dures for fiber optic fibers, cables, transducers, sensors, connecting and teminafing devices, and other fiber optic components. 1 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-
30、,-lT-455-39B -7 J 3 Apparatus 3.1 Use a test tube, or similar vessel, suitable to accept the diameter of cable to be tested. 3.2 Use a scale, balance, or platform, accurate to 2 0.05 mg (2 x IO4 oz). 3.3 Use a dye solution, consisting of: Distilled wate; Sod iu m Fluorescein 2 liters (0.52 gal.) 4 g
31、 (0.14 oz.) Note 1 - The prepared solution shall be kept stoppered and a fresh solution shall be prepared every 30 days. A new portion of the solution shall be used for each test conducted. . Note 2 - Alternative dyes are permitted if they are ultraviolet detectable and it can be demonstrated that t
32、hey can be carried in the wicking water. 3.4 Use an ultraviolet light source to detect the presence of the dye solution in the cable sample. The light source shall operate in the absorbance wavelength range for the dye solution being used. 4 Sampling and specimens The test specimen shall be a repres
33、entative sample of the fiber optic cable. The specimen shall be 150 5 1.5 mm (6 5 0.1 inches) long, unless otherwise specified in the Detail Specification. Trim the lower (immersed) cable end so that it is flat and perpendicular to the cable axis. If necessary, due to the construction of the particu
34、lar cable under test, prepare the upper end of the sample to ensure that the inner portion(s) of the cable will not fall out when the sample is suspended vertically (see clause 5.2). 2 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproducti
35、on or networking permitted without license from IHS-,-,- STDOEIA TIAIEIA-455-39B-ENGL 1999 3234600 Ob21977 548 W TMIA-455-3 9B 5 Procedure Unless otherwise specified, wicking of an optical fiber cable shall be determined using the procedures specified below. 5.1 A clean specimen shall be weighed acc
36、urately to the nearest 0.1 mg (4 x 10“ oz.) for samples which weigh less than 25 g (0.06 Ib) and to the nearest 1 mg (4 x oz.) for samples which weigh 25 g (0.06 Ib) or more. NOTE - Excess filling compound from the end of the cable can be removed before the sample is weighed. 5.2 The weighed specime
37、n shall be suspended vertically with the lower 50 mm (2 inches) immersed in the dye solution in an open test tube or other suitable vessel. The specimen shall remain in this configuration, placed in a draft-free area, for a period of 24 hours. The test conditions shall be standard atmospheric condit
38、ions as outlined in ElAilIA-455-A. 5.3 At the end of the test period, the specimen shall be removed from the dye solution. Ensure that no cable filling compound has been left in the test tube. Upon removal, the outer surface of the specimen shall be wiped free of excess moisture using a clean, dry,
39、lint-free cloth. Care should be taken not to wipe off any cable filling compound while wiping off the excess moisture as this will affect the weight measurements. After wiping, and within five minutes after removal from the solution, the specimen shall be weighed again to the nearest 0.1 mg (4 x IO“
40、 oz.) for samples which weigh less than 25 g (0.06 Ib) and to the nearest I mg (4 x lo5 oz.) for samples which weigh 25 g (0.06 Ib) or more. 5.4 Immediately after the final weighing, the specimen shall be observed under ultra- violet light to determine, to the nearest 1 mm (0.04 inch) the distance t
41、he dye solution has traveled in the specimen by wicking action for each cable component. To facilitate observation, the layer(s) of jacket shall be removed from the specimen and the entire cable dissected working from the upper end of the specimen. 3 Copyright Telecommunications Industry Association
42、 Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA/EIA-455-39B-ENGL 1999 = 3234600 Ob2L578 484 TIA/EIA-455-39B 6 Calculations or interpretation of results Subtract the original specimen weight from the final specimen
43、weight, then divide by the original specimen weight to determine the percent change in weight. Change in weight = (Final weiaht - Oriainal weiqht) * (100%) (1) Original weight Dye solution travel = /Wetted distance - immersion lenath) * (100%) (2) immersion length where wetted distance = length (mea
44、sured from the end of the cable) wetted by the dye (see clause 5.4) immersion length = 50 mm (see clause 5.2) 4 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA/EIA-4
45、55-37B-ENGL 1799 3234600 0621977 310 U TIA/EIA-455-39B 7 Documentation 7.1 The test data sheets shall contain the following: 7.1.1 Date of test 7.1.2 Identification of procedure used (FOTP-39 and title) 7.1.3 Identification of the optical fiber cable tested, together with any other applicable data.
46、3 7.1.4 Test sample length if other than 150 2 1.5 mrn (6 5 0.1 inches). 7.1.6 Test conditions (test duration and temperature). 7.1.7 Results of examination. 7.1.7.1 Record the change in weight, calculated as a percentage of the original specimen weighed along with the weight change in grams (weight
47、 of water that has wicked). 7.1.7.2 Record the distance the dye solution has traveled beyond the 50 rnm (2 inches) immersion level as a percentage of the immersion depth. 7.2 U.S. Military applications require the following information also be reported with each test. 7.2.1 Names of test personnel.
48、7.2.2 Test equipment used and date of latest calibration. 5 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.9 MIA-455-39B 8 Specification information The following details shal
49、l be specified in the Detail Specification: 8.1 Pretest data required. 8.2 Any deviations to this procedure or any special conditions that apply (specimen length, specimen preparation requirements, test duration and temperature) if other than stated herein. 8.3 Failure criteria. 8.4 Any other special requirements that may apply. 6 , / Copyright Tele
