The deciding factor in cable
performance
There are a number of different groups of materials. Each
has its own distinct properties, benefits and uses.
Fluoropolymers
(ETFE, FEP, PTFE, PFA, LSI 155) are halogenated high temperature materials that
are highly flame retardant. They do not generate much smoke and are exceptional
in oils and fuels. Due to their thin wall nature they are not ideal as jacketing
materials, but are often used in this way on smaller sized cables.
Polyolefins (HFI 90, HFX 125, HFS 80, HFS 105 XL B, HFS 107 XL) are
lower temperature halogen free materials. In most cases they are thick wall
materials used for jacketing, although some like HFI 90 have very good
dielectric properties.
Polyesters (HFI 120, TPS 100) are generally
higher temperature materials than polyolefins and can be used thinner due to
their tougher nature.
Polyalkenes (HFI 260) are very tough materials,
similar in many ways to fluoropolymers, but without the halogen content. They
are very difficult to process.
Rubbers (HFR 150, MPR 105) tend to be
highly flexible and have good temperature ranges. Their insulation resistance is
also fairly good making them usable as both core and insulation. As they are so
soft and flexible they do need to have high wall thicknesses.
Co-polymers (HFI 140, HFI 150, HFS 100, TPU 90) combine the best of
different material families. As such their properties can vary and they must be
evaluated on an individual basis.
