WDZ-YJY23 LSZH XLPE Copper STA Cable LV Underground Feeder Use

WDZ-YJY23 is a low-voltage copper core power cable designed for fixed installations, offering both fire resistance and enhanced mechanical protection. It features cross-linked polyethylene (XLPE) insulation for stable electrical performance, a steel tape armor layer to enhance resistance to external pressure and field stress, and a halogen-free, low-smoke outer sheath for improved protection in fire environments. This cable is typically chosen when cable lines pass through underground conduit systems, buried protection tunnels, utility corridors, or building access areas, where safety compliance and physical protection are tender requirements.

If your project is compliance-oriented and the wiring is not "indoor tray only," WDZ-YJY23 can be an upgrade option: the low-smoke, halogen-free (LSZH) outer sheath ensures a safer evacuation environment, while the armor layer withstands more demanding installation conditions.

Typical rated voltage: 0.6/1 kV (low-voltage distribution)

To ensure procurement accuracy, please confirm the applicable standards, test categories, and sheath performance requirements listed in your Bill of Materials (BOQ).

• 1C: Suitable for high-current feeders and phase-separated wiring
• 2C: Suitable for auxiliary feeders and dedicated single-phase loads
• 3C: Suitable for three-phase circuits without a neutral conductor
• 4C: Suitable for three-phase distribution with a neutral conductor
• 5C: Suitable for three-phase distribution with a neutral conductor and a protective earth (PE) (project-specific)
• 3+1 and 3+2: Suitable for feeder designs used in many building standards (project-specific)

• 1.5
• 2.5
• 4
• 6
• 10
• 16
• 25
• 35
• 50
• 70
• 95
• 120
• 150
• 185
• 240
• 300
• 400

• 4C x 10
• 4C x 16
• 4C x 25
• 4C x 35
• 4C x 50
• 5C x 10
• 5C x 16
• 5C x 25
• 5C x 35
• 3C x 10
• 3C x 16
• 3C x 25
• 1C x 95
• 1C x 120
• 1C x 150
• 1C x 185
• 1C x 240

3+1 and 3+2 configurations are available according to local specifications and bill of quantities.

Supply depends on conductor grade, armor construction, and Low Smoke Halogen-Free (LSZH) composite system. Please confirm the specific construction to ensure compliance with tender requirements.

• Safer enclosed wiring fire protection

  The halogen-free, low-smoke sheath system reduces smoke opacity and the release of corrosive gases, thereby improving visibility and reducing secondary damage to electrical equipment in a fire.

• Armored support for demanding wiring

  The steel strip armor improves compressive strength and resistance to external pressure, thereby enhancing the reliability of buried protective wiring and underground conduit installations.

• XLPE Insulation for Stable Daily Operation

  XLPE insulation is widely used in low-voltage feeders because it maintains stable dielectric strength and thermal properties under continuous load.

• Suitable for Large Projects and Recurring Bills of Quantities

  Universal sizes and repeatable constructions help contractors standardize procurement, reduce substitution risks, and ensure predictability in site planning.

• Optimized for EPC Delivery

  Reel supply, marking, and documentation support phased delivery planning, site preparation, and installation sequence.

• Building inlets from transformer areas to main switchboards
• Underground conduits and protective channels in campuses and industrial areas
• Utility corridors and cable channels with external pressure issues
• Utilities requiring Low Smoke Halogen-Free (LSZH) insulation for safety compliance
• Fixed installation feeders requiring additional mechanical protection

1. Copper Conductor Preparation

   Copper is drawn and stranded to the required conductor grade to ensure stable resistance and flexibility during installation.

2. Cross-linked Polyethylene (XLPE) Insulation Molding

   The insulation layer is extruded and cross-linked to form a durable dielectric layer suitable for low-voltage feeders.

3. Core Identification and Assembly

   Cores are color-coded or numbered and stacked according to the target core quantity; fillers and adhesives may be added to ensure geometric stability.

4. Side Pad Formation

   Side pads are laid to protect the stacked cores and provide a smooth base for the armor layer.

5. Steel Tape Armoring

   Steel tape is wound in a controlled overlap pattern, primarily providing mechanical protection against external pressure and compression.

6. Low Smoke Halogen-Free (LSZH) Outer Sheath Extrusion

   A halogen-free, low-smoke sheath is used to ensure fire resistance and protect the armor layer and inner layer.

7. Routine Testing and Release Control

   Routine inspections include conductor resistance, insulation thickness control, spark testing, voltage testing, dimensional checks, and sheath integrity checks. Project documentation is available upon request.

• Conductor: Copper
• Insulation: Cross-linked polyethylene (XLPE)
• Armor: Steel tape (typically for "23" type constructions, specific standards vary)
• Outer Sheath: Low smoke halogen-free (LSZH) composite system
• Installation Method: Fixed, including underground protected lines and enclosed building feeders

1. Select WDZ-YJY23 when the line requires Low Smoke Halogen-Free (LSZH) fire protection and additional mechanical protection beyond standard unarmored LSZH cables.
2. Select the number of cores based on your distribution scheme (neutral and sheath requirements).
3. Select the cross-sectional area based on load current, line length, grouping, ambient temperature, and permissible voltage drop.
4. If the line has a high risk of impact or special water/chemical exposure environments, describe the environment in the Request for Quotation (RFQ) to ensure proper matching of the sheathing system and protection design.

• Product: WDZ-YJY23
• Voltage: 0.6/1 kV
• Core Configuration: __
• Dimensions: __ mm²
• Structure: __ core x __ mm² (or 3+1 / 3+2)
• Total Quantity: __ meters
• Installation Path: Underground conduit/protected passage/corridor/incoming line
• Required Standards: __
• Destination: Country and port
• Trade Terms: __
• Special Requirements: Low smoke halogen-free performance rating, flame retardant rating, marking language, reel length, inspection documents

• Q1. What is WDZ-YJY23 mainly used for?
  A1. It is used for low-voltage feeders and distribution paths, especially suitable for paths requiring low smoke halogen-free performance and steel strip armor protection, particularly underground protection devices and building incoming lines.
• Q2. What are the advantages of the "23" structure?
  A2. In many market practices, this refers to a steel-tape armored structure chosen to enhance its resistance to external pressure and compression. The final meaning and testing scope depend on the referenced standards.
• Q3: Why is Low Smoke Halogen-Free (LSZH) material chosen for armored feeders?
  A3: Low smoke halogen-free material is chosen to reduce smoke and corrosive gases in fire situations, improve visibility, and reduce secondary corrosion damage in enclosed or densely populated environments.
• Q4: Can it be used for buried installation?
  A4: It is typically used for underground protection of wiring. The suitability for direct burial depends on local regulations, soil conditions, and mechanical risks. Please provide wiring details for proper matching.
• Q5: How to choose between single-core and multi-core cables?
  A5: Single-core cables are typically used for high-current feeders and flexible cabling; multi-core cable designs simplify pull-out and cable management in standard distribution layouts.
• Q6: What information helps expedite quotations and delivery schedules?
  Answer 6: Voltage, number of iron cores, cross-sectional area, total length in meters, installation route, required standards, recommended drum length, port of destination, and required documents.

• 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.