A 240 mm2 4-core armored cable is a heavy-duty electrical cable designed for high-power transmission and underground installations, commonly used in industrial and large commercial electrical systems in Nigeria.
Meaning of “240mm2 4-Core Armored Cable”
• 240 mm2 → Cross-sectional area of each conductor (very large, carries high current)
• 4-Core → Four conductors (typically 3 phase + 1 neutral)
• Armored → Protected with steel layer for mechanical strength
Construction (Layers)
1. Conductor Made of copper or aluminum High conductivity for carrying heavy loads
2.Insulation Usually XLPE insulation or PVC Prevents leakage and short circuit
3.Bedding Inner protective layer (PVC)
4.Armouring Steel Wire Armoured (SWA) for protection against damage
5.Outer Sheath Final PVC covering for weather and moisture resistance