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 |