Application
These cables are used for intrinsically safe circuits. For hazard prone areas cables with blue sheath are used for controlling and measuring requirements.
These installations are not earthed and require a seperate power circuit.
Standard
Adapted to DIN EN 60079-14, VDE 0165 Part 1.
Technical Data
Nominal Voltage : U / U 300 / 500V.
Insulation Resistance : Min. 20 GΩ x cm
Temperature Range : Flexing -5°C to +70°C. Fixed installation -30°C to +70°C
Minimum Bending Radius : Flexing 15 x cable ø. Fixed installation 4 x cable ø
Test Voltage : 3000V
Mutual Capacitance:
core to core (approx.) – 120 nF/km
Cable Construction
Bare copper, fine wire conductors, to EN 60228 Cl.5.
Core insulation of special PVC TI2 EN 50363-3.
Black core with continuous white numbering according to DIN VDE 0293.
Green/Yellow earth core in outer layer (3 cores and above).
Cores stranded in layers with optimal lay-length.
Outer sheath of special PVC, TM2 to DIN/BS EN 50363-4.1.
Colour Blue (RAL 5015).
Properties
PVC self-extinguishing and flame retardant according to EN 60332-1-2.
Cable Design Parameters
Note :
*G = With green/yellow earth core
X = Without green/yellow earth core