PVC
Cover
PVC covering has been widely used
as a good substitute for rubber insulator. At YAMARI,
PVC is used as the insulator of standard compensating
cables for general use.
Recommendable Temperature
Range : -20 - +80 C
Silicon Rubber Cover
Silicon rubber has been widely
used as an excellent insulator with less deterioration
of physical properies. It has almost same electric properties
as natural rubber and no serious change in voltage withstanding
occur over recommendable temperature range. It has also
good resistance to chemicals (except for concentrated
Alkalis), oils and grease, weather and ozone.
Recommendable Temperature
Range : -60 - +250 C
|
Glass
Fiber Cover
Glass fiber is known as a traditional
high temperature insulator because it has excellent incombustibility,
heat resistance, electric insulation, and chemical stability.
Although single glass fiber is not hygroscopic, bundle
there of are some hygroscopic. So, Silicon or other resin
is impregnated and baked over them to prevent moisture
absorption.
Recommendable Temperature
Range : 20 - 270 C
Teflon* (fluoric
resin PTFE. FEP) Cover
Teflon is the most excellent insulator
among organic materials in respect to heat resistance,
chemical resistance, electric insulation, high frequency
resistance, etc. High mechanical strengh and, especially,
high pressure resistance in winder range of operating
temperatures.
Recommendable Temperature Range
: -100 - 260 C
* Teflon is the registered
trade mark by Dupont, U.S.A. |
