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.
Standard
Cable Construction
| Conductors |
Stranded tinned copper conductors. |
| Insulation |
Thermoplastic LSZH. |
Electrical Characteristics at 20℃
| Nominal Conductor Cross Section |
mm^2 |
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. & Nominal Diameter of Strands |
Nominal Insulation Thickness |
Nominal Overall Diameter |
Nominal Weight |
| |
No.×mm^2 |
No/mm |
mm |
mm |
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
