450/750V Limited Fire Hazard Earthing Cables to SE774

 

Applications :

  • The single core signalling earth and power cables are used in safety signalling equipment rooms.

Standards :

  • SE774
  • UNE 21027
 

 

Construction :

  • Conductors : Stranded tinned copper conductors.
  • Insulation : Thermoplastic LSZH.

Electrical Characteristics at 20 °C :

  • Nominal Conductor Cross Section mm² 1.0 4.0 6.0 16.0 35.0
    Maximum DC Conductor Resistance Ω/km 18.2 4.7 3.11 1.16 0.529
    Voltage Rating KV 0.45/0.75

Mechanical and Thermal Properties :

  • Minimum Bending Radius : 7.5×OD.
  • Temperature Range : -25°C to +85°C(during operation) ; -10°C to +70°C (during installation).

Dimensions and Weight :

 

Cable Code No. of cores& Nominal
Conductor Cross
Sectional Area
No.×mm²
No. & Nominal
Diameter of
Strands
No/mm
Nominal
Insulation
Thickness
mm
Nominal
Overall
Diameter
mm
Nominal
Weight
kg/km
RF774-ES07Z-U-450/750V-1G1 1×1.0 1/1.13 0.6 4.0 28
RF774-ES07Z-U-450/750V-1G4 1×4.0 7/0.85 0.8 5.5 33
RF774-ES07Z-U-450/750V-1G6 1×6.0 7/1.04 0.8 6.1 90
RF774-ES07Z-U-450/750V-1G16 1×16.0 7/1.7 1.0 8.1 197
RF774-ES07Z-U-450/750V-1G35 1×35.0 19/1.53 1.2 10.9 389

  U is changed to K if the stranding class is changed from class 2 to class 5.

 

 
 
Low Toxicity

 

Flame Retardant
NF C32-070-2.1(C2)
IEC 60332-1/EN 50265-2-1
Fire Retardant
NF C32-070-2.2(C1)
IEC 60332-3/EN50266
Zero Halogen
IEC 60754-1/NF C20-454
EN 50267-2-1
Low Smoke Emission
IEC 61034/NFC20-902
EN 50268/NF C32-073
Low Corrosivity
EN 50267-2-2/NF C32-074
IEC 60754-2/NF C20-453