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450/750V Limited Fire Hazard Earthing Cables to SE774

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