TFR-3 solid 7x2,5mm²

Description

Description

Standards

  • International
    Nexans specification
  • National
    KS C IEC 60502-1

Application

The heat-resisting cable for fire alarm of the residential, commercial building.
The flame retardant cable for tray conformed to the standard of technique of electrical equipment.

 

Standard

K 60502-1

Nexans standard

 

Construction

1. Conductor: Solid conductor (Class 1), Annealed copper stranded conductor, Class  2

2. Insulation: Cross-linked polyethylene (XLPE), Max operating temperature: 90°C.

3. Unit: Cabling circularly insulated solid conductor in case of more 2 cores

4. Outer sheath: Black flame retardant PVC (FR-PVC)

 

Colors

2 cores: White, Black
3 cores: White, Black, Red
4 cores: White, Black, Red, Green 
more 5 cores: Numbering on black or white colored core.

 

Certification

KETI (Safety certification for electrical products)

TFR-3 0.6/1kV design

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Conductor

Insulation

Filler

Binder tape

Outer sheath (TFR-PVC)

 

The values of insulation resistance is not defined but only constant number of insulation resistance is defined.
(K=min. 36.7MΩ.km at room temperature, min. 0.037MΩ.km at 90°C)

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Annealed copper
Type of conductor
Solid, Class 1
Construction type
-
Insulation
XLPE
Outer sheath
PVC
Colour
all cores are black with white numbering
With Green/Yellow core
No
With smaller neutral conductor
No

Dimensional characteristics

Dimensional characteristics

Number of cores
7
Conductor cross-section
2.5 mm²
Conductor diameter
- mm
Average insulation thickness
0.7 mm
Average sheath thickness
1.8 mm
Outer Diameter
15 mm
Approximate weight
360 kg/km
Neutral conductor section (when smaller)
- mm²

Electrical characteristics

Electrical characteristics

Max. DC resistance of the conductor at 20°C
7.41 Ohm/km
Test voltage
3500 V
Rated Voltage Uo/U (Um)
0,6/1 kV

Usage characteristics

Usage characteristics

Operating temperature, range
-15 ... 60 °C
Flame retardant
KSC IEC 60332-3
Bending factor when installed
12 (xD)

Resources

Resources

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