Published 10.6.15 in the IWCS Proceedings from the 64th International Cable & Connectivity Symposium (2015) by Wayne Kachmar, President Technical Horsepower Consulting LLC. with Fiber Optic Center, Inc.
As the optical fiber and cable industry unfolded, several terms were coined to describe specific properties that were new and different from conventional wire processing. The term “Loose Tight Buffer” has been used to define both a specific property as well as a product problem resulting in different definitions and requirements for a type of optical cable. The time is past due to define a loose tight buffer and how to measure it. This paper proposes definitions of various tight buffer requirements based upon end uses. Termination methods and various environments that such cables and terminations are expected to function in are proposed. The use of existing test criteria and results shows a great sensitivity to both tools and techniques and also shows a great need for standardized tests and test results interpretation. This paper will also propose a set of characteristics based upon generic use of these buffered assemblies such as connection type, environment and tool type. A series of repeatable test methods, measurements, and characteristics for “Loose Tight Buffer, products” will be proposed. Sources of error based upon legacy failures of loose tight buffer cables such as epoxy wicking and buffer shrinkage will be cited.
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