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Wiring specifications for many public buildings now call for LFH cables to be used in certain areas, notably in corridors, risers etc. Under combustion circumstances LFH cables have a significantly reduced smoke emission and the gaseous products contain no toxic halogens.

VTS-LFH is technically identical to standard VTS, except that insulation and jacket materials are replaced by LFH (low fire hazard) materials. This makes no difference to the electrical properties, but the cable is very slightly stiffer.

Technical Specification:
BBC specification: PSF1/9M (PUR jacket versions only)
Inner conductor: 1/1.4mm silver plated copper (1.53mm²)
Dielectric: Cellular polyethylene, 6.3mm diameter
Outer conductor: 95% cover braid 0.15mm silver plated copper
Intersheath: Solid polyethylene, 8.5mm diameter
Screen: 95% cover braid 0.15mm plain copper
Jacket: LFH compound,11.0mm OD, red
PVC, 11.0mm OD, red
Impedance: 75 ohms ±3 ohms
Capacitance (nom): 54pF/m
Attenuation at 1MHz: 0.5dB/100m
Attenuation at 10MHz: 1.60dB/100m
Attenuation at 100MHz: 5.4dB/100m
Velocity ratio: 0.8 (200MHz)
Max. voltage (peak): 3.5kV RF
Weight: 16.3kg/100m
Reel length: 1000m
Cut lengths: Available in any multiple of 1 metre
Jacket marking: Printed with the words "DRAKA TRIAX 11 - Y - HDTV"
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CANFORD VTS-LFH CABLE Stock code: 36-492
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1+ £5.83
100+ £4.66
500+ £4.55
1,000+ £4.37
per metre