KYNAR cable (PVDF)

KYNAR cable (PVDF): overview

The KYNAR cables offer excellent chemical resistance, particularly in the presence of chlorine, and good underwater performance. They are well suited to offshore cathodic protection installations as well as boreholes and anode beds.

The conductor is multi-strand copper (7 strands), the insulation KYNAR (PVDF, nominal thickness 0.70 mm) and the additional sheath HMWPE, for a voltage of 0.6/1 kV. Available sizes: 1×10 mm² (DC resistance 1.83 Ω/km, 141 kg/km), 1×16 mm² (1.15 Ω/km, 202 kg/km), 1×25 mm² (0.727 Ω/km, 290 kg/km) and 1×35 mm² (0.524 Ω/km, 386 kg/km). KYNAR 10 and 16 mm² is in stock; larger diameters are generally delivered within 3 to 4 weeks.

Why a specific cable for anodes

Around an impressed current anode, the environment is particularly hostile: the anode reaction produces chlorine and oxygen, which quickly degrade ordinary insulation. If the anode cable insulation fails, the copper comes into contact with the electrolyte, dissolves and cuts the anode off from the circuit. PVDF (KYNAR) resists this attack, especially in the presence of chlorine.

When to choose it

For anode lead cables in boreholes, anode fields and marine environments, where the cable lies in the electrolyte near the anode. For connections not exposed to this environment, a standard cathodic protection cable is enough.

KYNAR cable (PVDF): technical specifications

KYNAR cable (PVDF): documentation