I. Product Name:
BLV: Aluminum Core PVC Insulated Wire
Main Materials: Aluminum, PVC Plastic
II. Product Standards:
This product complies with the Ministry of Machinery Standard JB/T8734-1998. BLV wires have the same simple structure as BV wires, differing in that they are made of aluminum. Available sizes range from 2.5 square meters to 630 square meters (1.5 mm² to 630 mm², suitable for 450/750V).
Like BVR and BV wires, BLV wires are certified by China Compulsory Certification (CCC).
Packaging: 100 meters/roll, wrapped in plastic film; tolerance within 0.5%.
Wire Colors: Available in seven colors: red, yellow, blue, green, black, white, and two-tone.
III. Product Application:
BLV cable is suitable for fixed installation in power plants with an AC rated voltage of 450/750V or less. It is a general-purpose single-core, unsheathed cable, similar to the common insulated wire and home wiring we use in daily life. It is the most commonly used type of cable. It is resistant to acids, alkalis, oils, moisture, and mildew.
Applications: Household appliances, instruments, and power lighting. It is primarily used for rural household wiring and temporary wiring in commercial and engineering projects.
IV. Product Usage Characteristics:
1. The cable temperature must be no less than 0°C during installation. During normal use, the maximum rated conductor temperature is 70°C. The allowable bend radius is no less than 4D for wires with an outer diameter (D) less than 25mm; no less than 6D for wires with an outer diameter (D) of 25mm or greater.
2. Finished insulated and finished wires must withstand the specified AC voltage test after being placed in water at room temperature of 20±5°C for at least ±5°C for 1 hour.
3. The wires have excellent electrical insulation, thermal conductivity, and flame retardancy, ensuring reliable quality, convenience, and durability.
V. Technical Parameters:
BLV 450/750V Aluminum Core PVC Insulated Wire
Nominal Cross-Section (mm²) Wire Core Structure Number of Wires/Wire Diameter (mm) Maximum Outer Diameter (mm) Reference Weight (kg/km) Conductor Resistance at 20°C (Ω/km)
Aluminum
2.51/1.783.91711.80
41/2.254.4227.39
61/2.764.8293.08
107/1.357.0621.83
167/1.708.0781.15
257/2.1410.01180.727
357/2.5211.51560.524
5019/1.7813.02150.387
7019/2.1415.02820.268
9519/2.5217.53850.193
12037/2.0319.04310.153
15037/2.2521.05390.124
18537/2.5223.56660.0991
24061/2.2526.58570.0754
30061/2.5229.510700.0601
40061/2.8533.013900.0470
The above data is for reference only. Many factors may influence the specific installation process, such as power usage time, installation length, heat dissipation conditions, installation method, and ambient temperature.
VI. Differences between BLV, BVR, and BV:
BV is a single-core copper wire, while BVR is a multi-core copper wire. Because copper is superior to aluminum, 1mm² of copper is equivalent to 3mm² of aluminum in terms of current carrying capacity. For example, a BV-10mm² has a resistivity of 3.08, while a BLV-10mm² has a resistivity of 3.08. Therefore, copper outperforms aluminum in terms of performance and is more resource-efficient.
Price-wise, since copper is more expensive than aluminum, aluminum-core wires are generally cheaper.
Weight-wise, copper-core wires are heavier than aluminum-core wires of the same model.
