The low voltage multi-core power cable with round aluminum conductor is a type of electrical cable that, depending on its application, consists of one or three cores with the same cross-section as phase conductors, along with a neutral or earth conductor. The cross-section of the neutral or earth conductor is usually equal to the phase conductor’s cross-section, but this may vary depending on the cable’s requirements and application.
The conductor cores are made of aluminum, and the insulation of each core is made of PVC (NAYY) or XLPE (NA2XY), which provides high resistance to heat and pressure. Fillers are used over the twisted cores to create a round cable profile. Finally, the sheath is made of a thermoplastic compound such as PVC, polyethylene, or halogen-free material.
The filler granules serve as raw material for producing the cable’s inner sheath, which is the layer between the insulation and the outer sheath. The fillers help to even out the underlying layers and prepare the cable for the outer sheath application.
The cable sheath is typically black, but its color can be customized based on agreement between the manufacturer and the customer to suit specific cable operating conditions.