450/750V Limited Fire Hazard Earthing Cables to SE774

Application

450/750V Limited Fire Hazard Earthing Cables are used in safety signalling equipment rooms.

Reference Standards

SE774

UNE 21027

Construction

450/750V Limited Fire Hazard Earthing Cables to SE774

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

Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information