wiredinUSA April 2014
While having flame performance similar to that of polyolefinHFFRcompounds, together with greater oil-resistance, Halguard E 59000 series TPEs exhibit lower density, lower melt viscosity, and higher elongation at break, and avoid the processing challenges of high loadings of metal hydrate fillers. Teknor Apex recommends the Halguard E 59000 series compounds for flexible cords. The various grades in the Halguard series are formulated to meet different needs; for example: E 59001 meets deformation and heat shock requirements at 150 ºC, compared to121ºC for PVC, and is designed for cords that meet UL 62 requirements and for appliance wire that complies with UL 758; E 59002 provides even better flame properties, but does not meet the UL 62 oil test; E 59010 exhibits a high volume resistivity, even in water, making it well suited for insulation, but it does not meet IEC 61034 smoke test requirements on its own.
this low power consumption can translate into significant system savings. Preliminary TE tests reveal mid-board optics at 5 watts per port and the CDFP active optical cable assembly (AOC) at 6 watts per port. The CDFP AOC is part of the MSA that is currently underway. The MSA provisions 8 watts per port – TE's CDFP AOC is said to yield 25 percent power savings over this specification. Coolbit optical engines are suitable for both high density and high bandwidth requirements. Coolbit was developed at TE's fabrication facility in Jarfalla, Sweden, using 25G VCSEL and PIN devices, a TIA amplifier and a driver IC. A new series of low-smoke, flame-retardant thermoplastic elastomers (TPEs) from Teknor Apex Company is designed to provide non-PVC insulation and jacketing without halogenated flame retardants or phthalate plasticizers, while avoiding the processing limitations of highly filled halogen-free flame retardant (HFFR) polyolefin compounds. Halguard ® E 59000 series HFFR compounds contain no plasticizers but compare well with plasticized PVC in mechanical and electrical performance. Their polymer chemistry differs from the polyolefins in other HFFR compounds, and they incorporate intumescent flame retardant formulations rather than the metal hydrate fillers used to render the polyolefin products flame retardant. Low smoke TPEs
Silica sleeving
wiredInUSA - April 2014
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