Wires and cables are commonly used in construction and home renovation. Commonly used wires include BV single-core rigid wire and BVR single-core flexible wire. What is BYJ wire? What is the difference between BV and BVR wires? Let's explain what BYJ wire is:
1. BYJ's insulation is polyethylene. What is polyethylene?
Cross-linked polyethylene insulated wire is a new type of wire used in construction. This product holds a significant market share in Western countries and is considered one of the most ideal construction wires internationally. The performance of cross-linked polyethylene insulated wire should comply with the standards GB5023-1997, B12706-1991, and JB-8734-1998. With the increasing requirements of many architectural design firms in my country for building wiring, especially after joining the WTO, and based on market access principles, my country's economic development efforts will further increase, the construction market will further expand, and relevant building regulations will become increasingly stringent. Relevant government departments have begun recommending the use of BYJ wire in public buildings. In this environment, products with green and environmentally friendly concepts are gaining popularity. Cross-linked polyethylene (XLPE) wires are entering the market under this premise.
BYJ Wire Model Introduction:
BYJ - Copper-core XLPE insulated wire
Parallel multi-core wires are designated by "B."
Twisted multi-core wires are designated by "S" (usually omitted).
Hard wires are designated by "B."
Soft wires are designated by "R."
Common insulation materials for wires are polyvinyl chloride (PVC) and polyethylene (PE). PVC is designated by "V" and polyethylene by "Y." BYJ product applications: This product is suitable for fixed wiring in buildings, electrical appliances, switches, and other power equipment with rated voltages of 450/750V and below.
BYJ copper core cross-linked polyethylene insulated wire;
N- BYJ copper core cross-linked polyethylene insulated fire-resistant wire;
WDZR-BYJ copper core irradiated cross-linked halogen-free low-smoke polyethylene insulated flame-retardant wire;
WDZR-BY copper core halogen-free low-smoke polyethylene insulated flame-retardant wire;
WDZN-BYJ copper core irradiated cross-linked halogen-free low-smoke polyethylene insulated flame-retardant fire-resistant wire;
WDZR-BY copper core halogen-free low-smoke polyethylene insulated flame-retardant fire-resistant wire;
Common wire diameters: 0.75 mm, 1 mm, 1.5 mm, 2.5 mm, 4 mm, 6 mm, 10 mm, 16 mm, 25 mm, 35 mm, 50 mm, 70 mm, 95 mm, 120 mm, 150 mm, 185 mm, 240 mm, 300 mm, etc.
2. What are the differences between BYJ and BVR products? How do they differ from other wire models?
BVR Copper core PVC insulated flexible wire;
BV Copper core PVC insulated rigid wire;
BYJ Copper core XLPE insulated wire;
BJR Copper core XLPE insulated flexible wire;
RV Copper core PVC insulated installation wire;
RVB Copper core PVC insulated flat connecting wire;
RVS Copper core PVC insulated stranded wire;
RVV Copper core PVC insulated PVC sheathed wire;
BYR Polyethylene insulated flexible wire;
BYVR Polyethylene insulated PVC sheathed wire;
RY Polyethylene insulated wire;
RYV Polyethylene insulated PVC sheathed wire;
Based on the above model analysis, BYJ and BVR are both wires suitable for construction and home improvement. The difference is that BVR Unlike BYJ, BYJ's insulation sheath is more environmentally friendly and relatively more expensive. Other types of wire also use different insulation materials and have different structures. Shangjin Cable recommends confirming the model and specifications with an electrician before purchasing.
BYJ Advantages:
1. Excellent mechanical and physical properties, good resistance to environmental stress cracking, excellent wear resistance, and greater ability to withstand concentrated mechanical stress than PVC and PE.
2. Resistant to various chemical solvents and relatively stable in surrounding corrosive media.
3. The outer diameter of cross-linked polyethylene insulated wire is smaller than that of all-PVC insulated wire of the same cross-section, making it easier to install during pipe installation.
4. This allows for reduced pipe diameters or more wires to be run within the same pipe diameter, reducing construction and installation costs.
5. Cross-linked polyethylene insulated wire is significantly lighter than PVC insulated wire, making it easier to install and transport, reducing labor intensity and transportation costs.
6. 7. Cross-linked polyethylene insulated wire has a rated temperature of up to 90°C during long-term operation, and a short-circuit (maximum duration of no more than 5 seconds).
8. The wire conductor's maximum temperature can reach 250°C, and its current carrying capacity is greater than that of PVC insulated wire.
9. It does not release corrosive or toxic gases during combustion, causing no secondary hazards. It meets modern fire safety requirements and is a new type of environmentally friendly product.
10. It has excellent electrical performance, with insulation resistance much higher than that of PVC wire (cable), and its dielectric loss tangent (tanδ) is very low and essentially unchanged with temperature.
