BV electric wire introduction:
BV electric wirereferred to as plastic copper wire, the name is, the general purpose of a single conductor cable without sheath.
B representative is a category, cloth wire, T representative of the conductor is: copper conductor, V on behalf of the insulation: pvc. Cable and wire for AC voltage 450/750V and below power plant, daily use electric appliance, meter and telecommunication equipment.
BV electric wires are divided into: ZR-BV and NH-BV.
ZR-BV: copper core PVC insulated flame retardant wire: insulation material plus a flame retardant, leaving the flame is not spontaneous combustion.
ZR-BV: flame retardant BV wire is divided into A, B, C, D four grades, including a best, and so on, the most commonly used is ZR-BV.
NH-BV: copper conductor PVC insulated wires: normal fire can be used under normal conditions.
Copper conductor PVC insulated wire
BV electric wire use
General purpose single core hard conductor non sheathed cable, suitable for AC voltage 450/750V and below power plant, daily electric appliance, instrument and telecommunication equipment cable and wire.
With acid and alkali resistance, oil resistance, moisture, mildew and other characteristics.
1 Classification and use is used to distribute the current use, belonging to the cloth wire category, with the letter "B";
2 conductor material is copper, with the letter "T" said, cloth wire in copper conductor omitted;
3 insulating materials for polyvinyl chloride, with the letter "V";
4 cloth wire structure is simple, in addition to the above three points, and some of the sheath, the sheath material for polyvinyl chloride is also with the letter "V", the sheath material for rubber on the use of the letter "X". There is no jacket, and there is no need to say.
Such as BVV said copper core PVC insulated and sheathed round wire.
Types of commonly used:
BV electric wires are usually used to distinguish the model specification from the cross-sectional area of the center of the insulating layer. (such as four square bv wire copper core cross-sectional diameter 2.25 mm, according to the circular area calculation formula s = Pi *r*r=3.976 square mm)
Commonly used bv line types: 0.75 square, square, 1.5 square, 2.5 square, square, square, 10 square, 16 square, 25 square, 35 square, 50 square, 70 square, 95 square, 120 square, 150 square, 185 square, 240 square
BV electric wire with BVR said, BV rubber copper wire with BX said, BV rubber and aluminum with BLX, BV plastic aluminum with BLV said, fire BV line with NH-BV said, flame retardant BV line with ZR-BV said
Ordinary insulated wire, household wire, is the most common type of wire.
To 100 square meters of new houses for the class, 4 square meters of copper BV wire 200 meters, 400 meters, 300 meters, 1.5 meters, 1.5 square meters of copper core BV 100 meters. Above is not suspended ceiling decoration, if you want to ceiling 1.5 of the line, but also a little more
There are several 0.3 and 0.5300400 0.4 side of BV wire diameter.
Commonly used BV electric wire colors are: red, yellow, blue, green, black, white, double color (yellow, green), brown.
BV wire product implementation standards
GB/T5023-2008 this standard is equivalent to 60227-1997 JB/T, 8734-2012 IEC this standard is equivalent to 227-1979 IEC
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