Construction: Two conductors, each 30 strands of 0.10mm plain copper wire (OFC grade) for flexibility, twisted with short lay length (20mm) for better balance and noise rejection. Cotton fillers used both to reduce microphony and to give a more regular central core profile to prevent movement of screen. Precision wound helical formation screen, 72 strands of 0.10mm plain copper wire. Overall jacket is extra flexible soft PVC, which has excellent handling characteristics and remains flexible at low temperatures, together with a serviceable “semi-matt” surface finish
Conductors: 30/0.10mm (0.235mm²) plain copper wire (OFC)
Insulation: PVC, radial thickness 0.38mm, OD 1.4mm, Red and Black
Twisting and lay: 2 ×0.25mm² plus 2 ×cotton fillers, 20mm lay length
Screen: 72/0.1mm helically wound plain copper wire, 96% optical coverage
Capacitance: 125pF/metre core to core, 225pF/metre core to core + screen.
Maximum conductor resistance: 77 ohms/km
Overall jacket: Soft semi-matt PVC, OD 6.40mm,
020 8659 2558
