Building wire is fit for AC rated voltage 450/750V and below of domestic electrical appliances of smaller size motorized tools of instruments of various meters and motorized lighting installations.
1.Range of Application 
Building  wire is fit for AC rated voltage 450/750V and below of domestic electrical appliances of smaller size motorized tools of instruments of various meters and motorized lighting installations.
2.Service Conditions
Working temperature:Not more than 105℃ for RV-105℃ model.The other no more than 70℃

Nominal section
(mm2) Number/diameter of core
(mm) Maximum outer diameter
(mm2) Reference weight
(Kg/km) Conductor resistance at 20°C
≤(Ω/km)
copper aluminum aluminum copper
1.5(A) 1/1.38 3.3 20.3 ----- ----- 12.1
1.5(B) 7/0.52 3.5 21.6 ----- ----- 12.1
2.5(A) 1/1.78 3.9 31.6 17 11.80 7.41
2.5(B) 7/0.68 4.2 34.8 ----- ----- 7.41
4(A) 1/2.25 4.4 47.1 22 7.39 4.61
4(B) 7/0.85 4.8 50.3 ------ -----