**Wire type and name: 1. Classification and purpose is for the distribution of current use, belong to wire cloth class, with the letter "B" indicates; 2. conductor material is copper, with the letter "T", said the copper center conductor wire cloth omit representation; 3. Insulation material PVC, with the letter "V" represents; 4. Simple wire cloth structure, in addition to the above three points, and some have the sheath, the sheath material PVC also with the letter "V "representation; sheath material for the rubber to use the letter" X "indicates. No jacket and no later would not have representation. BVV expressed as conductor PVC insulated and sheathed round wires.
Characteristics BV line with anti-acid, oil, moisture, mold and other features.