Holiday Update:
Fiber Optic Center will be closed December 24 and 25.
Due to potential early carrier pickups, PLEASE HAVE ALL ORDERS IN BY NOON ON MONDAY, DECEMBER 23.
We will resume our regular business hours on Thursday, December 26.
(800) IS-FIBER · (508) 992-6464
THC is an international high technology consulting company incorporated by Wayne Kachmar and built on his 40+ years of optical cable industry experience. Work includes consulting for wire companies adding fiber optics line in their manufacturing, cable companies developing and testing new cable designs and assembly houses determining cable specs or incoming cable quality tests programs.
Additional services include program guidance for certified test houses, optical cable spec requirements, independent outside expert review of cables or installations, optical patent attorney support, independent lab support of environmental chamber time, physical tests etc. and United States cable operation set up consulting (specifically for foreign companies) including but not limited to spec conversion, plant operation set-up, overall equipment and product line evaluation.
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As the demands for smaller, more compact optical and hybrid fiber optic cables increase, many cable designers may choose 200μm coated fibers versus 250μm coated fibers to allow tighter packing density. Existing fiber coating requirements may not provide enough data to properly evaluate the use of 200μm fibers in non-traditional designs where fibers encounter materials and surfaces other than extruded polymers.
This paper presents additional test methods to evaluate coating sensitivities, allowing cable designers to make informed choices in coatings based on specific parameters tested. Examples include sensitivity to powdered, water-swellable components; post-moisture ingress behavior; and direct contact with various strength member materials. Also explored is the ability of the coating to retain existing performance characteristics. Ultimately, the proposal is to add these test methods to the designer’s toolbox to minimize the number of steps required to successfully design a non-traditional optical micro cable or micro cable component.
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The use of ripcords in cable designs predates fiber optic cables by many years. In most applications, the installation and use of ripcords is optional and easily understood. However, the rapid and continuing proliferation of cable designs has led to challenges in the design and use of ripcords for longer length jacket removals.
This paper attempts to look at the array of existing ripcords embodied in cables today, evaluate their effectiveness, and determine if existing tests and test procedures are an accurate reflection of reliable ripcord performance. In addition, the rapid expansion of new cable designs and materials may make the existing methods of incorporating ripcords into cable designs obsolete. A realistic look at the integration of the ripcord material, design, and cable design is explored. Also, since most ripcord procedures are generic in nature, this paper proposes that specific categories of ripcord be defined as well as specific procedures.