Instrumentation cable 20 Pair according to BS 5308 , IEC 60502.
 
1. Application
This cable is used for reducing interference in computers, control systems, transmission of analogue signal     and other measuring devices.
2. Cable structure 
  2.1 Rated voltage : 300/500V , 600/1000V
  2.2 Conductor : Copper wire /tinned-copper wire , Class1 , Class2, Class5
  2.3 Insulation : PVC /PE /XLPE
  2.4 Cabling: Two or three cores stranded (Pair or Triple)
  2.5 Individual shield (if required) : Al-plastic tape with drain wire
  2.6 Overall shield : Al-plastic tape with drain wire
  2.7 Inner sheath (applicable if there is an armour layer) : PVC/PE
  2.8 Armour layer : Galvanized steel wire / Steel tape
  2.9 Outersheath : PVC/PE/LSHF
  2.10 Other characteristics: Oil resistant , Flame retardant , Anti-corrosion , etc.