This file is raw output from pdftotext and may not be ideal for distribution. If you are a maintainer for Hackipedia, please sit down when you have time and clean this text version up. Source PDF: /mnt/main/jmc-storage/docs/SCTE/ANSI SCTE 010 Test Method for Flexible Coaxial Cable Impact (2008).pdf Like all conversions the text below should be fully readable as UTF-8 unicode text. --------------------------------------------------------------- ENGINEERING COMMITTEE Interface Practices Subcommittee AMERICAN NATIONAL STANDARD ANSI/SCTE 10 2008 Test Method for Flexible Coaxial Cable Impact NOTICE The Society of Cable Telecommunications Engineers (SCTE) Standards are intended to serve the public interest by providing specifications, test methods and procedures that promote uniformity of product, interchangeability and ultimately the long term reliability of broadband communications facilities. These documents shall not in any way preclude any member or non- member of SCTE from manufacturing or selling products not conforming to such documents, nor shall the existence of such standards preclude their voluntary use by those other than SCTE members, whether used domestically or internationally. SCTE assumes no obligations or liability whatsoever to any party who may adopt the Standards. Such adopting party assumes all risks associated with adoption of these Standards, and accepts full responsibility for any damage and/or claims arising from the adoption of such Standards. Attention is called to the possibility that implementation of this standard may require the use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. SCTE shall not be responsible for identifying patents for which a license may be required or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Patent holders who believe that they hold patents which are essential to the implementation of this standard have been requested to provide information about those patents and any related licensing terms and conditions. Any such declarations made before or after publication of this document are available on the SCTE web site at http://www.scte.org. All Rights Reserved © Society of Cable Telecommunications Engineers, Inc. 2008 140 Philips Road Exton, PA 19341 i TABLE OF CONTENTS 1.0 SCOPE .........................................................................................................1 2.0 NORMATIVE REFERENCES ...................................................................1 3.0 INFORMATIVE REFERENCES ................................................................1 4.0 COMPLIANCE NOTATION ......................................................................1 5.0 DEFINITIONS AND ACRONYMS ...........................................................2 6.0 EQUIPMENT ..............................................................................................2 7.0 TEST SAMPLES .........................................................................................3 8.0 TEST METHOD ..........................................................................................3 9.0 INSPECTION ..............................................................................................3 10.0 TEST RECORD ...........................................................................................3 LIST OF FIGURES FIGURE 1 – TEST FIXTURE…………………………………………………….3 ii 1.0 SCOPE This test is to establish that specified outdoor flexible RF coaxial drop cable jackets are capable of low temperature characteristics. 2.0 NORMATIVE REFERENCES The following documents contain provisions, which, through reference in this text, constitute provisions of this standard. At the time of subcommittee approval, the editions indicated were valid. All standards are subject to revision, and parties to agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the documents listed below. 2.1 ANSI/SCTE 74 2003, Specification for Braided 75Ω Flexible RF Coaxial Drop Cable 3.0 INFORMATIVE REFERENCES The following documents may provide valuable information to the reader but are not required when complying with this standard. 4.0 COMPLIANCE NOTATION “SHALL” This word or the adjective “REQUIRED” means that the item is an absolute requirement of this specification. “SHALL NOT” This phrase means that the item is an absolute prohibition of this specification. “SHOULD” This word or the adjective “RECOMMENDED” means that there may exist valid reasons in particular circumstances to ignore this item, but the full implications should be understood and the case carefully weighted before choosing a different course. “SHOULD NOT” This phrase means that there may exist valid reasons in particular circumstances when the listed behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label. “MAY” This word or the adjective “OPTIONAL” means that this item is truly optional. One vendor may choose to include the item because a particular marketplace requires it or because it enhances the product, for example; another vendor may omit the same item. 1 5.0 DEFINITIONS AND ACRONYMS 6.0 EQUIPMENT 6.1 Environmental chamber with top port hole – Having the interior chamber size with a vertical dimension of at least four (4) feet (1.22 meters), capable of maintaining temperatures -15 ºC for PVC or - 30º C ±1 C degree for PE for a 24 hour period. 6.2 Guide Tube – Metallic tube with a smooth inside diameter of approximately 1.25 inches (31.75 mm) ± 0.125 inches (3.17mm) and an overall length of 39 inches (99.1 mm) ± .50 inches (12.7mm). 6.3 Weight – A cylinder of approximately 1 1/16 inches (2.54 cm) ± 1/32 inch (.79mm) in diameter with a weight of one (1) pound (453.6 grams), having a flat striking face with 1/32 inch (.79mm) beveled edge. 6.4 Impact Surface – A flat, smooth carbon steel plate with minimum dimensions 4 in. x 4 in. x .25 in. thick (1.57 cm x 1.57 cm x 6.35 mm). 6.5 See Figure 1 Test Fixture: Figure 1 Test Fixture1 1 H=36 inches equating to 3 foot pounds force on the conditioned sample. 2 7.0 TEST SAMPLES Five test samples of jacketed cables of approximately 15 inches (38 cm) are required. 8.0 TEST METHOD 8.1 Place the sample in the Cold Chamber and condition for 4 hours at -30°C ± 1 C degree (-22º F ± 1.8 F degree) for a polyethylene sample, and -15°C ± 1 C degree (5º F ± 1.8 F degree) for a PVC sample. 8.2 Condition the assembly, the weight and the impact surface in the environmental chamber for a minimum of 4 hours at the specified test temperature. 8.3 After the conditioning period, position the drop tube vertically over the impact surface with the test sample resting below on the impact surface. 8.4 Secure a test sample across the bottom of the drop tube. Two tests may be conducted on each sample by positioning the weight to strike between center and the end of the CUT. 8.5 Release the weight from the top of the tube, impacting the test sample at the bottom. 8.6 Test and inspect 10 impact areas. 9.0 INSPECTION The impact area is to be visually inspected. Failure of testing is a sign of a jacket crack or splits for the 10 impact tests visible to the unaided eye. 10.0 TEST RECORD Record a pass or fail indication, the size of cable, type of jacket tested and the test temperature used. 3