Multiple copper wires are braided over the conductor / single pair / 1 triad with a minimum coverage of 70% to 90% max., this braid can also used as an overall shield on multicore / multipair / multi triad cables where individually shielded conductors / pairs / triads are layed to form a multi core / pair / triad cable.
II. TAPED / SCREENED:
Aluminum bonded polyester tapes are wrapped along with a drain wire ( flexible tin plated copper wire rope ) in continuous contact with the aluminum side of the tape which is wrapped with an overlap of at least 20% creating a virtual screen.
III. DOUBLE SHIELDED:
In certain data networks the cable is double shielded i.e.: has two shields : the conductor is shield with Aluminum tape and overall shielding of the cable is done by copper braid shield. Here both the drain wire and outer copper shield is connected to ground or common mode to get best shielding results.
Shield chart ( suggested ):
MULTI CORE INSTRUMENTATION & CONTROL CABLES:
Standard Characteristics of Instrumentation Cable
MULTIPAIR THERMOCOUPLE EXTENSION / COMPENSATING CABLES
A Thermocouple measuring point is formed by joining two dissimilar metals as one circuit, which when exposed to different temperatures generates a net thermal electromotive force ( E.M.F.) Each thermocouple cable has two cores of such dissimilar conductors forming a pair and for multiple measuring points multi pair cable is used.
"Prestige" offers the complete range of cables suited for High Volt & Temperature application with various combinations of different conductors, insulations and shields as as per customer application & requirement.