WDZ-BYJ LSZH Flame-Retardant Single Core Wire 450/750V and 0.6/1kV

WDZ-BYJ is a low smoke halogen-free flame-retardant single-core copper wire with XLPE insulation, suitable for fixed installations. It is ideal for building wiring in conduits, cable trays, and distribution panels that require low smoke halogen-free flame retardant performance.

If your project requires safer indoor wiring with both low smoke halogen-free performance and reliable XLPE insulation, WDZ-BYJ is the ideal choice.

WDZ-BYJ is a single-core copper wire designed for fixed installations in indoor electrical systems. It typically uses stranded or solid copper conductors and is insulated with XLPE, meeting low smoke halogen-free (LSZH) and flame-retardant performance requirements. WDZ indicates the low smoke halogen-free (LSZH) material system, while "B" is often used in many procurement documents to indicate the flame retardant rating. Compared to standard PVC insulated building wiring, WDZ-BYJ wiring is specified for use in public buildings and projects with high compliance requirements to reduce the release of smoke and corrosive gases in fires, thus contributing to safer evacuation and reducing the risk of secondary corrosion.

Common Voltage Ratings in Building Projects (depending on standards)

• 450/750 V for general internal wiring
• 0.6/1 kV for high-load feeders and distribution wiring

Always select a voltage rating that complies with project specifications and local regulations.

• Indoor wiring in residential and commercial buildings
• Conduit and trunking wiring for lighting, outlets, and branch circuits
• Internal wiring in distribution panels, switch cabinets, and panels
• Fire-resistant areas and public areas requiring Low Smoke Halogen-Free (LSZH) wiring
• Hospitals, subways, airports, schools, shopping malls, hotels, and high-traffic locations
• Densely wired control cabinets and equipment rooms

• Low Smoke Halogen-Free (LSZH) Safety for Enclosed Spaces

  Designed to reduce smoke and avoid the generation of corrosive halogen gases, providing better visibility and reducing the risk of equipment corrosion in the event of a fire.

• Flame Retardant Rating for Controlled Wiring Behavior

  Used to limit the spread of flame along indoor wiring paths, especially suitable for situations where multiple circuits are installed side-by-side.

• Cross-linked Polyethylene (XLPE) Insulation for Reliable Thermal and Electrical Performance

  XLPE insulation has stable dielectric properties, making it the preferred material for building wiring in demanding circuits.

• Easy Installation, Professional Surface Finish

  This is a modern Low Smoke Halogen-Free (LSZH) wire that meets compliance requirements and enhances overall wiring quality.

• Conductor: Copper (solid or stranded, depending on the project)
• Insulation: Cross-linked polyethylene (XLPE), low smoke halogen-free flame-retardant formula
• Sheath: None (single-core insulated wire)
• Armor: None
• Installation Method: Fixed installation in conduits, cable trays, and distribution panels

• Copper Conductor Preparation

  Copper is drawn and optionally stranded to meet resistance targets and support bending during actual installation.

• XLPE/Low Smoke Halogen-Free Insulation Extrusion and Cross-linking

  The insulation layer is extruded and cross-linked to form a stable dielectric layer that meets the performance targets of low smoke halogen-free and flame-retardant materials.

• Surface Finish and Marking

  The insulation surface is treated for smooth threading in conduits and clearly marked for easy identification and traceability.

• Routine Inspections

  Typical inspections include conductor resistance, insulation thickness control, spark testing, voltage testing (if applicable), and dimensional inspection.

1.5 2.5 4 6 10 16 25 35 50 70 95 120

• 1.5 and 2.5 mm² for lighting and outlets (depending on the project)
• 4 and 6 mm² for high-load circuits and small feeders
• 10 to 35 mm² for distribution feeders and distribution panel power supply cabling
• 50 mm² and above for high-current feeders (depending on the project)

1. If your Bill of Quantities (BOQ) requires LSZH flame retardant wire for indoor building wiring, select WDZ-BYJ.
2. Confirm the required voltage rating (450/750 V or 0.6/1 kV).
3. Select the cross-section based on load current, line length, grouping method, ambient temperature, and permissible voltage drop.
4. Confirm the conduit wiring installation method and pull requirements.
5. If flexibility is required, specify the conductor class and stranding requirements.

• Product: WDZ-BYJ
• Voltage Rating: __
• Required Standard: __
• Conductor Type: Solid/Stranded __
• Cross-section and Quantity: __
• Total Length: __ meters
• Installation Method: Conduit/Trough/Distribution Panel Wiring
• Destination: Country and Port __
• Trade Terms: __
• Packaging: Reel/Drum/Bottle
• Required Documents: __
• Remarks: Insulation Color, Marking Language, Delivery Schedule, Inspection Requirements

• Over Productions Service:

  JinHong has a wide range of cable and conductor products for you to choose from. We will provide caring services and professional project solutions for everyone who needs them.

• Quality Certification Services:

  JinHong cable products are manufactured according to GB, IEC, BS, NFC, ASTM, DIN, and other international standards. Our technical team can customize cable products that meet your requirements according to your needs.

• Profession Customer Service:

  JinHong provides free professional consulting services to provide you with one-stop project solution services and rapid product delivery solutions.

• Delivery And Shipping Services:

  While we at JinHong provide high-quality cables, we also provide good delivery solutions. While ensuring the safe delivery of products, we provide the best packaging and transportation solutions, greatly reducing customers’ transportation costs.

JinHong cable packaging is provided in the form of wooden reels, corrugated boxes, and coils. The cable ends are sealed with BOPP self-adhesive tape and a non-hygroscopic sealing cap to protect the cable ends from moisture. We can print the required marks on the outside of the barrel with waterproof material according to customer requirements.