Upcoming Live Technical Symposium Spotlight Webinars
Non-Fluorine and Non-PFAS Wire & Cable Compounds
This presentation will cover the background of PFAS, various local, state, and country regulations, and the testing and certification requirements for compounds used as insulation and jacket materials in wire and cable. The update will include information concerning the chemical composition of Perfluoroalkyl Substances (PFAS), common uses of the substance, PFAS Regulations in Europe, PFAS Regulations in the US, various PFAS bans, PFAS Testing Strategies and test capabilities for PFAS and Fluorine at UL.
UL Solutions is an independent organization that has been evaluating products in the interest of public safety for over 130 years. UL Solutions staff are involved in many aspects of the wire and cable industry and have worked with code authorities, manufacturers and various technical committees to develop safety Standards for wire and cable.
This presentation will cover the background of PFAS, various local, state, and country regulations, and the testing and certification requirements for compounds used as insulation and jacket materials in wire and cable. The update will include information concerning the chemical composition of Perfluoroalkyl Substances (PFAS), common uses of the substance, PFAS Regulations in Europe, PFAS Regulations in the US, various PFAS bans, PFAS Testing Strategies and test capabilities for PFAS and Fluorine at UL.
Core Identification and Geometry Specifications in Multicore Optical Fibers
The common approach for specifying core geometry in multicore optical fibers (MCF) is to use the core radial position (relative to the cladding center) and the pitch between core pairs. This works well to describe the nominal MCF features but is inadequate to properly tolerance the core positions (i.e. restrict core positional errors in a manufactured MCF). A better approach is to perform an optimized alignment of the manufactured MCF against a “master” template of the MCF design core positions. This approach produces consistent, easily understood limits on core positional errors and generalizes to more complicated core patterns.
The common approach for specifying core geometry in multicore optical fibers (MCF) is to use the core radial position (relative to the cladding center) and the pitch between core pairs. This works well to describe the nominal MCF features but is inadequate to properly tolerance the core positions (i.e. restrict core positional errors in a manufactured MCF). A better approach is to perform an optimized alignment of the manufactured MCF against a “master” template of the MCF design core positions. This approach produces consistent, easily understood limits on core positional errors and generalizes to more complicated core patterns.
Sustainable Options for Crosslinked Polyethylene (XLPE) Cable Scrap
Crosslinked polyethylene (XLPE) is widely used in energy cables but is difficult to recycle due to its thermoset nature. As a result, thousands of tons of XLPE waste are landfilled annually. This study investigates a sustainable recycling strategy by mechanically reducing XLPE waste into powder and blending it with polypropylene (PP) to create an injection-moldable composite. An experimental matrix of blends was created to evaluate the effects of XLPE particle size and weight percentage on mechanical and rheological properties. Characterization techniques included tensile and impact testing, melt flow index, and oxidative induction time. Results show that XLPE content significantly affects flow behavior, while particle size plays a larger role in mechanical performance. Optimized blends demonstrated suitable properties for use in non-electrical applications such as cable spool manufacturing. This approach presents a potential avenue for large-scale reuse of XLPE scrap in the wire and cable industry.
Crosslinked polyethylene (XLPE) is widely used in energy cables but is difficult to recycle due to its thermoset nature. As a result, thousands of tons of XLPE waste are landfilled annually. This study investigates a sustainable recycling strategy by mechanically reducing XLPE waste into powder and blending it with polypropylene (PP) to create an injection-moldable composite. An experimental matrix of blends was created to evaluate the effects of XLPE particle size and weight percentage on mechanical and rheological properties. Characterization techniques included tensile and impact testing, melt flow index, and oxidative induction time. Results show that XLPE content significantly affects flow behavior, while particle size plays a larger role in mechanical performance. Optimized blends demonstrated suitable properties for use in non-electrical applications such as cable spool manufacturing. This approach presents a potential avenue for large-scale reuse of XLPE scrap in the wire and cable industry.
On-demand Technical Symposium Spotlight Webinars
Evaluation and Refinement of FEA Techniques for Thermal Cycling in Fiber Cables
Kinetic Study on New Generation Optical Fiber Coatings with Improved Processing Robustness
Effect of Temperature Rise on Data Transmission Performance in Power over Ethernet (PoE) Cables
Overview of Rare Earth Doped Fibers, Applications and Fabrication
Chromatic Dispersion of Single Mode Fibers for 800G and 1.6T Transmission
Connectivity Advancement Trends for Quantum Technology and Its Applications
Temperature Cycling Simulation Using Finite Element Analysis
