TIA-455-89-B-1998 FOTP-89 Optical Fiber Cable Jacket Elongation and Tensile Strength《FOTP-89光缆的护套拉伸和抗张强度》.pdf
《TIA-455-89-B-1998 FOTP-89 Optical Fiber Cable Jacket Elongation and Tensile Strength《FOTP-89光缆的护套拉伸和抗张强度》.pdf》由会员分享,可在线阅读,更多相关《TIA-455-89-B-1998 FOTP-89 Optical Fiber Cable Jacket Elongation and Tensile Strength《FOTP-89光缆的护套拉伸和抗张强度》.pdf(15页珍藏版)》请在麦多课文档分享上搜索。
1、 TIA DOCUMENT FOTP-89 Optical Fiber Cable Jacket Elongation and Tensile Strength TIA-455-89-B (Revision of TIA/EIA-455-89-A) JULY 1998 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Association represents the communications sector of NOTICE TIA Engineering Standards and Publ
2、ications are designed to serve the public interest through eliminating 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 particula
3、r need. The existence of such Publications shall not in any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Publications. Neither shall the existence of such Documents preclude their voluntary use by non-TIA members, either domestically
4、or internationally. TIA DOCUMENTS TIA Documents contain information deemed to be of technical value to the industry, and are published at the request of the originating Committee without necessarily following the rigorous public review and resolution of comments which is a procedural part of the dev
5、elopment of a American National Standard (ANS). Further details of the development process are available in the TIA Engineering Manual, located at http:/www.tiaonline.org/standards/sfg/engineering_manual.cfm TIA Documents shall be reviewed on a five year cycle by the formulating Committee and a deci
6、sion made on whether to reaffirm, revise, withdraw, or proceed to develop an American National Standard on this subject. Suggestions for revision should be directed to: Standards othewise, record sufficient data to determine the yield point and break point. If no extension-indicating mechanism is us
7、ed, stop the testing machine crosshead at appropriate load or extension points and measure the extension of the gauge length. Note - See ASTM D 638 for guidance in interpreting yield and break characteristics. 4 STD-EIA TIA/EIA-455-89B-ENGL L998 3234b00 0621988 323 TINEIA-455-896 5.8 Discard specime
8、ns that break at some obvious fortuitous flaw. Record the load and extension of the gauge length at yield (if any) and at the breaking . point. A yield or break outside the marked area shall be considered as invalid test information. 6 Calculations or interpretation of results 6.1 Elongation: If the
9、 sample gives a yield load that is larger than the load at break, calculate the “percent elongation at yield“; othenrvise, calculate the “percent elongation at break. Do this by reading the change in gauge length at the applicable strain, dividing by the original gauge length and multiplying by 100:
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