Instrumentation Cables

Instrumentation Cables

Instrument cables are cables that are responsible for transmitting signals and data. These cables are designed to be resistant to electromagnetic interference and noise.
The latest standard used to manufacture and test instrument cables as well as control cables is BS EN 50288-7, but a wide range of applicants still use older standards such as BS 5308.
The type of wire placement in Instrument cables is multi-core, pair, triple and quad. Each of the handles may be placed inside a sheath (Individual Screen) and then twisted together, and the overall set of twisted strands is placed inside the final shield (overall screen).
In the structure of instrument cables, the conductor type is generally type 2 or flexible, but according to customers' requests, it is possible to produce with other classes such as core (class 1) or flexible (class 5). Copper conductor material can also be used as plain copper or tin-coated.

Also in the extrusion stages (such as insulation, inner cover, final sheath) according to the conditions of the places used, it is possible to produce with polymers of polyethylene (crosslinked or plain), PVC, halogen free.
There are three ways to shield or screen cables. The most common method is to use aluminum foil tape with a 0.5 flexible tin-coated wire. The second method is to shield the cable using a plain or coated metal braid with a minimum coverage of 85%. There is another method that combines the above two methods using aluminum foil and braid shield with a minimum coverage of 43%.
At the customer's request, it is possible to amoured the instrument cables in two forms: wire (common) and galvanized wire, which is placed on the inner cover of the cable. The output voltage range of Instrument cables is 500 volts, although it is possible to produce with voltages of 90 and 300 volts.

Abbreviations Symbol for instrument cables

Outdoor cable

A

Identifications of designation

Installation Cable

J

Installation cable for Industrial electronic

RE

(PVC) Poly vinyl chloride

Y

Insulation materials

(XLPE) Cross Linked Polyethylene

2X

(PE) Poly ethylene

2Y

Screen of braided copper wire

C

Screening

Screen of plastic-coated metallic foil+ Drain wire +polyester tape

(st)

PVC

Y

Sheath material

(PE) Poly ethylene

2Y

Halogen free

HX

(PVC) Poly vinyl chloride heat resistant

Yw

Steel wire braid

(z)

Type of armour

Steel tape armour

B

Pair in metal foil

Pimf

Type of stranding elements

Triple in metal foil

Timf

Quad in metal foil

Vimf

 

Abbreviations Letter for instrument cables

Copper conductor

CU

Tinned copper conductor

TCU

Individual screen

ISCR

Overall screen

OCSR

Mica glass tape

MGT

Aluminum foil

AL Foil

Stranded tinned copper

Drain Wire

Polyester Tape

Pet

Crosslink Polyethylene

XLPE

Steel tape armour

STA

Steel wire armour

SWA

 

SWB

Aluminum tape armour

ATA

Aluminum wire armour

AWA

Halogen free granule

LSFOH

Polyvinyl chloride

PVC

The technical specifications of instrument cables are as follows: