LGJ-240/40 Steel Core Aluminum Stranded Wire Introduction

LGJ is the symbol of steel core aluminum stranded wire, where L is the abbreviation of aluminum wire, G is the abbreviation of steel core, and J is the abbreviation of stranded wire; 240 square millimeters of aluminum and 40 square millimetres of steel are the nominal cross-sections of the conductor; The structure of the wire is 26 pieces of aluminum, 3.42 square millimeters in diameter, 7 pieces of steel, and 2.66 square millimeters in diameter; The calculated cross section of aluminum is 238.85 mm 2, the calculated cross section of steel is 38.90 mm 2 , and the total calculated cross section is 277.75 mm 2; The outer diameter of the wire is 21.66 mm; the DC resistance of the wire is not more than 0.1209 Ω/km; the rated tensile force is 83370 N (Newton); the unit mass is 964.3 kg/km; the manufacturing length is 2000 m; The short-circuit current changes with the location of the access system and the equipment of the access system. Only after having a complete wiring diagram can the short-circuit current be calculated according to the calculation. The impedance of the line also varies with the way the line is erected. It must also be calculated according to the drawings.