Screens are often used in instrumentation cables to prevent or reduce possible interference in cables that can be caused by the following reasons:
Screens can be:
Aluminium/polyester tape with a tinned copper drain wire, the most popular construction |
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Copper/polyester tape with a tinned copper drain wire, for a better screen effect |
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Bare copper braid for electromagnetic interference or when the cable is subject to movements |
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Tinned copper braid for electromagnetic interference in presence of corrosive atmosphere or high temperature |
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