Description
Standards
International : IEC 60331-1 or 2; IEC 60092-350; IEC 60092-351; IEC 60092-360; IEC 60092-376; IEC 60228; IEC 60331-21 ; IEC 60332-1; IEC 60332-3-22; IEC 60754-1; IEC 60754-2; IEC 61034Description
Application
TX® (I) 331 150/250 V fire resistant overall and individually screened twisted pair cables maintain circuit integrity in case of fire by meeting performances requirements from the IEC 60331 series for 90 minutes. These telecommunication and instrumentation cables show a strong protection aganist cross-talk and result into a good compromise between TX® (C) 331 and TCX® (C) 331 cables against external electromegnetic disturbances. Designed with halogen-free fire retardant materials, they provide optimum safety for people and maximal asset protection against all risks of fire.
Design
1. Conductor:
Stranded bare copper
Class 2
2. Insulation: Mica tape + XLPE (cross-linked polyethylene)
Optional: Special fire resistant HF 90 (halogen-free compound)
with INFITTM technology
3. Individual screen:
Alu/polyester tape with a tinned copper drain wire
4. Outer sheath:
Polyolefin SHF1 (SHF2 on request)
Colour: orange
Marking
I NEXANS I TX (I) 331 150/250 V "n x 2 or 3 x s" mm² 90 °C - IEC 60092-376 IEC 60332-3-22 Cat. A IEC 60331-1/2 ww/yy - CE + metric marking
Core identification
- Core 1 : white
- Core 2 : blue
- Core 3 : red
- Double identification: conductor and pair
Characteristics
Construction characteristics | |
---|---|
Conductor material | Bare copper |
Conductor flexibility | Stranded class 2 |
Insulation | HFFR special |
Screen | Aluminium-Polyester tape |
Drain wire | Tinned copper |
Outer sheath | Polyolefin |
Sheath colour | Orange |
Halogen free | IEC 60754-1 |
Dimensional characteristics | |
Number of pairs | 1 |
Conductor cross-section | 0.75mm² |
Minimum outer diameter | 6.6mm |
Maximum outer diameter | 8.2mm |
Approximate weight | 80kg/km |
Electrical characteristics | |
Rated Voltage Uo/U (Um) | 150 / 250 (300) V |
Max. DC resistance of the conductor at 20°C | 52Ohm/km |
Usage characteristics | |
Standard | IEC |
Fire retardant | IEC 60332-3-22 |
Smoke density | IEC 61034 |
Gases toxicity | No |
Gases corrosivity | IEC 60754-2 |
Electro magnetic interference resistance | Yes |
Max. conductor temperature in service | 90°C |
Operating temperature, range | -30 .. 80°C |