Min Operating Temperature
Max Operating Temperature
Min Bending Radius
Manufactured to BS 4553-1 Table 3.
The insulated neutrals and bare earth wires are laid in a concentric layer around the insulated phase conductor with PVC string separators separating the neutral and earths. This is then bound with a clear polyester tape and then PVC sheathed.
Split concentric cables are predominantly used by Distribution Network Operators (DNO's) when providing the final service connection to domestic properties.
Split concentric cables are also suitable for sub main distribution and have been found to be particularly useful within high rise buildings and street lighting systems.
These cables are designed to be installed in air, or for burial in free draining soil conditions.
|Nominal CSA of Phase Conductor (mm2)||4.0||6.0||10.0||16.0||25.0|
|Nominal Makeup of Phase Conductor (mm)||7/0.85||7/1.04||7/1.35||7/1.70||7/2.14|
|Approx Combined CSA of Neutrals (mm2)||4.0||6.0||10.0||16.0||25.0|
|Nominal Makeup of Neutrals (mm)||7 x 0.85||7 x 1.04||7 x 1.35||7 x 1.70||11 x 1.70|
|Nominal Combined CSA of Earth (mm2)||4||6.0||10.0||16.0||16.0|
|Nominal Makeup of Earth (mm)||3 x 1.35||4 x 1.53||4 x 1.78||4 x 2.25||4 x 2.25|
|Nominal Radial Thickness of Insulation (mm)||0.8||0.8||1.0||1.0||1.2|
|Nominal Radial Thickness of Sheath (mm)||1.4||1.4||1.4||1.4||1.5|
|Approximate Overall Diameter (mm)||9.8||11.2||12.6||15.0||18.3|
|Approximate Weight (kg/km)||207||291||403||656||848|
|PHASE Max d.c Conductor Resistance 20°C (ohm/km)||4.61||3.08||1.83||1.15||0.727|
|NEUTRAL Max d.c Conductor Resistance 20°C (ohm/km)||4.8||3.2||1.9||1.2||0.76|
|EARTH Max d.c Conductor Resistance 20°C (ohm/km)||4.8||3.2||1.9||1.2||1.2|