Page 90 - index
P. 90
Additional Information
GENERAL TERMINOLOGY
THERMOPLASTIC
Materials that soften and fow when heated. Usually possess a
defnite melting point. The material will become frm again upon
cooling. These materials can be molded and shaped with a heating
and cooling process (the process can be repeated). Extrusion of melt
fow polymers on wire is an example of this type of material.
THERMOSET
Materials are soft and pliable during one stage of processing. They can
be molded and extruded at this state after which they are set or cured,
usually at a higher temperature. After the setting process (crosslinking) is
complete, they can not be softened by re-heating resulting in improved
heat and solvent resistance properties over thermoplastic materials.
INSULATION
Materials possessing good dielectric properties used on wire
components in cable, usually as direct covering on conductors.
JACKET
Materials that provide protection in mechanical and chemical properties applied
as a direct covering over cable components. The choice of materials for cable
design to satisfy any given combination of installation and environmental
conditions can often be more critical than the electrical requirements.
Non-Halogen Compounds
Over the last few years, non-halogen fame retardant
reduced emissions compounds have been developed in
response to a growing demand for products which ofer
greater protection against fatalities, injuries and property
damage caused by fre. When burned, cables made with
non-halogen fame retardant compounds give of as little
as one quarter the smoke and fumes of conventional
cable materials. These compounds have good crush
and deformation resistance, good fexibility, excellent
long term ageing properties and physical integrity at
low temperatures. Cables made with these compounds
will meet the fame and smoke requirements of UL
1385 and can be designated as “LS” or Low Smoke.
90 www.cobrawire.com | industrialsales@cobrawire.com | 216-416-0477 | © 2015 Cobra Wire & Cable, A Genuine Cable Group Company
