Railway Cables | ||||||||||||
450/750V Limited Fire Hazard Earthing Cables to SE774
Application
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℃
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℃ to +85℃ (during operation); -10℃ to +70℃ (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