Insulated Sodium Conductors

The development and characterization of a new polyethylene insulated sodium conductor are described. The resistivity, specific gravity, and cost of sodium are compared to corresponding properties of copper and aluminum. While the alkali and alkaline earth metals have relatively good electrical conductivity, sodium was chosen because of its light weight, low cost, and availability. Physical properties of the polyethylene insulated sodium conductor were determined. Potential areas of question, such as service life, reaction of water with damaged cables, and combustion characteristics are covered in detail.