Concentric Cable
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. These cables are designed to be installed in air, or for burial in free draining soil conditions.
...moreBare Copper Conductor
Solid and stranded (classes AA and A) bare copper are suitable for overhead transmission and distribution applications. Stranded conductor of greater flexibility (classes B and C) are suitable for uninsulated hook up, jumpers, and grounds in electrical construction. Soft Drawn copper is unilay construction. Bare copper, solid or stranded. Available in tempers hard, medium-hard, or soft. Stranded conductors are concentrically stranded in hard and medium-hard tempers and are Combination Unilay stranded in the soft-drawn temper.
...moreMedium Voltage Cross Linked Polyethylene Cables
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