Clean-Burning XLPE Insulated and Sheathed Power Cable for Safer Power Distribution

Modern power distribution is no longer evaluated only by voltage rating, conductor size, current-carrying capacity, and installation convenience. In public buildings, rail facilities, data centers, industrial plants, commercial complexes, intelligent manufacturing workshops, hospitals, schools, airports, and underground spaces, the behavior of a cable during a fire is also a critical engineering consideration. The WDZ(A/B/C)-YJY XLPE insulated and sheathed power cable is designed for precisely this demand: stable electrical performance in normal operation and significantly reduced fire-related hazards in emergency conditions.

This cable belongs to the family of XLPE insulated and sheathed power cables. Its core value lies in combining the proven electrical and thermal advantages of cross-linked polyethylene insulation with a halogen-free, low-smoke, flame-retardant polyolefin sheath. Compared with ordinary PVC-sheathed YJV cables or conventional flame-retardant ZR-YJV cables, WDZ(A/B/C)-YJY is engineered to deliver a cleaner combustion profile. When exposed to fire, it does not release corrosive halogen acid gases such as hydrogen chloride, produces much lower smoke density, and helps maintain better visibility for evacuation and firefighting.

The cable is suitable for power systems where safety, environmental responsibility, equipment protection, and regulatory compliance are priorities. Its long-term allowable conductor operating temperature is 90°C, and its short-circuit temperature can reach up to 250°C for five seconds, enabling reliable performance in demanding electrical networks. Available commonly in 0.6/1kV voltage grade and in conductor cross-sectional ranges from 1.5 mm² to 1000 mm², it supports a broad range of low-voltage power transmission and distribution applications.

Anhui Zhishang Cable Technology Co., Ltd. manufactures and supplies this cable with a strong emphasis on stable quality, material integrity, process control, and customer-oriented engineering support. Located in Xuancheng City, Anhui Province, China, the company integrates research and development, production, and sales of wire and cable products. With automated production lines, experienced quality engineers, R&D technicians, and OEM/ODM capabilities, the company provides cable solutions for power engineering, industrial automation, intelligent manufacturing, weak current systems, appliance equipment, and other application fields.

What WDZ(A/B/C)-YJY Means

The product designation WDZ(A/B/C)-YJY reflects several key technical characteristics. “WDZ” generally indicates low-smoke, halogen-free, flame-retardant performance. “A/B/C” represents the flame-retardant class, corresponding to different levels of bunched cable flame propagation requirements. “YJ” refers to XLPE insulation, while “Y” indicates a polyolefin sheath. Together, the designation identifies a cable that uses copper conductors, cross-linked polyethylene insulation, and a low-smoke halogen-free polyolefin outer sheath.

The use of XLPE insulation is important because XLPE has excellent electrical insulation strength, good thermal stability, and superior resistance to deformation under heat compared with many thermoplastic insulation materials. It allows a long-term operating temperature of 90°C, which supports higher current-carrying capacity under equivalent conditions. This feature helps designers optimize cable sizing, reduce excessive heating, and extend service life when installation and load conditions are properly managed.

The outer sheath is the defining difference between WDZ(A/B/C)-YJY and ordinary PVC-sheathed power cables. PVC has long been used in cable sheaths due to its mechanical properties and cost effectiveness. However, when PVC burns, it can release dense smoke and corrosive halogen gases. These gases may irritate the respiratory system, reduce visibility, corrode electronic equipment, damage metal structures, and complicate firefighting operations. By replacing PVC with halogen-free polyolefin materials, WDZ(A/B/C)-YJY substantially reduces these fire-related hazards.

The “A/B/C” flame-retardant classification is selected according to project requirements. Class A generally represents a more demanding bunched flame test than Class B or Class C, requiring stronger resistance to flame spread along cable bundles. In real installations, cables are often arranged in trays, shafts, tunnels, conduits, risers, or equipment rooms where multiple cables are installed together. Bunched cable flame-retardant performance is therefore especially important, because flame spread along a cable route can turn a localized fire into a larger building or facility emergency.

Core Safety Advantages

The main advantage of WDZ(A/B/C)-YJY is its balanced fire safety performance. It does not simply resist ignition or delay flame propagation; it also reduces the secondary dangers of smoke toxicity, corrosive gas emission, and visibility loss. In many fire events, these secondary factors cause serious harm even before direct flame contact occurs. A cable that burns with less smoke and without halogen acid gases can create better conditions for evacuation, rescue, and post-fire equipment recovery.

Halogen-Free Performance

Halogen-free construction means that the cable materials are formulated to avoid the release of corrosive halogen acid gases during combustion. In standard testing, combustion gas acidity and conductivity are evaluated to determine the corrosive nature of emitted gases. For this type of cable, a typical halogen-free performance target is a pH value of at least 4.3 and conductivity not exceeding 10 μS/mm. These parameters indicate low corrosivity of combustion gases compared with halogen-containing materials.

This advantage is particularly valuable in environments containing sensitive equipment, such as data centers, control rooms, automation systems, communication facilities, hospitals, security monitoring centers, and intelligent building systems. Corrosive gases can attack printed circuit boards, connectors, relays, terminals, switchgear surfaces, copper busbars, and precision instruments. Even if the fire is extinguished quickly, corrosive residues may continue damaging equipment afterward. A halogen-free cable helps reduce such risks.

Low-Smoke Characteristics

Low-smoke performance is another essential benefit. During combustion, the cable emits extremely low levels of smoke compared with conventional PVC-sheathed products. A typical requirement for low-smoke performance is light transmittance of at least 60%, indicating that smoke density remains relatively low and visibility is improved. In building fires, clear visibility can directly affect evacuation efficiency, rescue speed, firefighting accuracy, and panic reduction.

Dense smoke can make exit signs, stairwells, corridors, emergency lighting, and firefighting equipment difficult to identify. It can also disorient occupants and rescue personnel. For enclosed or semi-enclosed installations such as underground commercial areas, metro stations, tunnels, cable galleries, basements, high-rise vertical shafts, and industrial cable trenches, low-smoke cable selection is not merely an environmental preference but a practical life-safety measure.

Flame-Retardant Protection

The WDZ(A/B/C)-YJY cable is designed to pass corresponding bunched flame tests, such as those aligned with IEC 60332-3 series requirements. Flame retardancy helps prevent fire from propagating along the cable route, especially when cables are installed in groups. The selection of Class A, Class B, or Class C depends on installation density, fire safety requirements, project specifications, and local codes.

Competitor cables may claim basic flame retardancy but still use PVC materials that release smoke and halogen gases. Others may offer halogen-free sheaths but lack stable flame-retardant formulation consistency. The competitive strength of a properly manufactured WDZ(A/B/C)-YJY cable lies in achieving a combined performance profile: flame resistance, low smoke, and halogen-free combustion behavior, while maintaining reliable electrical performance and insulation integrity.

Clean-Burning Engineering Concept

The phrase “clean burning” describes the cable’s behavior under fire exposure. It does not mean the cable cannot burn under severe fire conditions. Instead, it means that when burning occurs, the cable is engineered to minimize toxic gas, corrosive gas, and dense smoke generation. This distinction is important in responsible engineering communication. WDZ(A/B/C)-YJY is not a fireproof cable in the sense of maintaining circuit integrity under all fire conditions, but it is a safer power cable option for reducing fire by-products and flame spread risk.

This clean-burning characteristic is the fundamental difference between WDZ(A/B/C)-YJY and ordinary YJV or ZR-YJV cables. YJV cables offer excellent electrical performance with XLPE insulation but normally use PVC sheaths. ZR-YJV cables improve flame retardancy but may still produce acidic gases and dense smoke during combustion. WDZ(A/B/C)-YJY adds a higher level of environmental and personnel safety by using low-smoke halogen-free sheath materials.

Electrical and Thermal Performance

While fire safety is the main differentiator, WDZ(A/B/C)-YJY also inherits the electrical and thermal advantages associated with YJV-type XLPE insulated power cables. Its insulation system supports long-term operation at a maximum conductor temperature of 90°C. This high temperature rating enables stable power transmission under normal load conditions and helps maintain insulation performance over long service periods.

The short-circuit temperature rating reaches up to 250°C for five seconds. This capability is important because short-circuit events create intense heat within a very short duration. A cable’s ability to withstand short-circuit thermal stress contributes to overall system safety when properly coordinated with protective devices such as circuit breakers, fuses, relays, and protection settings.

Copper conductors provide excellent electrical conductivity, good mechanical flexibility relative to conductor construction, and stable long-term performance. Full-core, full-length, pure copper specifications are essential for dependable operation. Poor-quality competitor products may reduce cost through undersized conductors, mixed materials, inconsistent conductor resistance, or insufficient insulation thickness. Such compromises can lead to overheating, voltage drop, premature aging, and increased failure risk.

The rated voltage most commonly used for this product is 0.6/1kV, suitable for low-voltage distribution systems. Other voltage grades, such as 8.7/15kV, may also be supplied according to application and manufacturing capability. For low-voltage building and industrial power systems, 0.6/1kV cables are widely used for feeders, distribution circuits, equipment power supply, motor circuits, lighting power trunk lines, and infrastructure power networks.

Technical Specification Overview

These specifications form the foundation for selection, installation, and acceptance. Project engineers should confirm final cable structure, conductor class, core number, armor requirements if any, sheath color, packing, standards, and certification documents according to the actual project. The specification table provides a practical reference but should be matched with detailed datasheets, design calculations, and applicable standards before final procurement.

Advantages Over Conventional Competitor Cables

In many projects, engineers compare WDZ(A/B/C)-YJY with YJV, ZR-YJV, PVC insulated cables, and other general power cable products. The correct selection depends on risk level, budget, installation environment, regulatory requirements, and equipment sensitivity. However, in safety-critical environments, WDZ(A/B/C)-YJY offers several clear advantages.

Compared with Ordinary YJV Cable

Ordinary YJV cable is widely used and respected for its XLPE insulation, 90°C operating temperature, and reliable power transmission performance. Its main limitation is the PVC sheath. PVC is durable and cost-effective, but its combustion by-products are not ideal in enclosed public spaces. During a fire, PVC can produce dense smoke and acidic gases, including hydrogen chloride. These emissions may endanger people and damage electrical or electronic equipment.

WDZ(A/B/C)-YJY retains the electrical strengths of YJV while replacing the sheath with low-smoke halogen-free polyolefin. Therefore, it delivers a better fire safety profile without sacrificing the basic thermal advantages of XLPE insulation. For projects where fire risk management is a priority, this difference can justify the higher material cost.

Compared with ZR-YJV Cable

ZR-YJV cable improves flame-retardant performance compared with ordinary YJV, but many ZR-YJV products still use PVC-based sheath compounds. They may slow flame spread, yet still produce dense smoke and corrosive halogen gases. In emergency environments, flame retardancy alone is not sufficient if smoke and acid gases create evacuation hazards and equipment corrosion.

WDZ(A/B/C)-YJY provides a more complete fire safety package. Its flame-retardant classification addresses flame spread, while its low-smoke and halogen-free features reduce toxic and corrosive emissions. For high-occupancy buildings, transportation hubs, medical facilities, intelligent control centers, and underground systems, this combined performance is often more aligned with modern safety expectations.

Compared with Low-Cost Unverified Cables

The cable market contains products that appear similar in naming but differ substantially in material quality and manufacturing discipline. Low-cost cables may use recycled sheath material, impure copper, insufficient insulation thickness, unstable flame-retardant additives, or inconsistent extrusion quality. These issues may not be obvious from visual inspection but can affect conductor resistance, insulation strength, flame performance, smoke density, and long-term durability.

A properly manufactured WDZ(A/B/C)-YJY cable offers more dependable performance through strict material selection, stable process control, and routine testing. The difference is especially important in projects where cable replacement is difficult after installation. A cable installed in a shaft, tunnel, tray, underground duct, or complex equipment room may remain in service for years or decades. Saving money on an inferior cable can create high future costs through downtime, safety hazards, and maintenance difficulty.

Application Scenarios

WDZ(A/B/C)-YJY is especially suitable for environments with clear fire safety and environmental requirements. It is recommended for crowded, enclosed, or equipment-sensitive spaces where low-smoke and halogen-free behavior can make a meaningful difference during emergency conditions. Its applications include public buildings, commercial centers, office towers, airports, railway stations, hospitals, schools, hotels, exhibition centers, cultural venues, and government facilities.

Industrial applications are also important. In intelligent manufacturing plants, automated production lines, robotics workshops, electrical control rooms, precision instrument areas, and industrial monitoring systems, equipment damage from corrosive gases can cause severe economic losses. Even a small fire event can interrupt production, damage control systems, and delay recovery. Using clean-burning cable can reduce secondary damage and improve resilience.

Data and communication infrastructure can also benefit from this cable type. Although WDZ(A/B/C)-YJY is a power cable rather than a communication cable, it often supplies power to data centers, server rooms, network equipment rooms, communication base stations, security systems, and weak current engineering facilities. In these environments, reducing smoke and corrosive combustion products helps protect sensitive electronic systems.

Transportation and underground projects frequently require low-smoke halogen-free cables. Metro systems, tunnels, underground parking structures, cable galleries, and enclosed pedestrian passages present special evacuation challenges. Smoke accumulation can rapidly reduce visibility and increase danger. Flame-retardant, low-smoke, halogen-free cables help meet the risk profile of such installations.

Design and Installation Considerations

Correct cable selection must be accompanied by correct installation. The installation temperature for WDZ(A/B/C)-YJY should not be below 0°C. Low temperatures may reduce sheath flexibility and increase the risk of cracking or mechanical damage during pulling, bending, or laying. If installation must occur in cold conditions, proper warming, handling precautions, and manufacturer guidance should be considered.

The minimum bending radius should be respected. For single-core cables, the bending radius should generally be at least 20 times the cable diameter. For multi-core cables, it should be at least 15 times the cable diameter. Excessive bending can stress insulation, deform conductors, damage sheath layers, and reduce long-term reliability. Cable trays, ducts, risers, and turning points should be designed with adequate routing space.

Pulling tension should also be controlled. Large cross-section cables require proper pulling equipment, rollers, lubricants if applicable, and trained installers. Improper pulling can damage the sheath or internal structure. In vertical installations, cable support spacing and clamping should prevent excessive mechanical stress. Where cables pass through walls or floors, fire sealing systems should be compatible with low-smoke halogen-free cable materials and project fire compartment requirements.

Environmental exposure must be evaluated. Polyolefin sheaths generally offer excellent low-smoke and halogen-free performance but may have slightly lower wear resistance, oil resistance, or weather resistance compared with some PVC sheaths. Therefore, for outdoor, oily, abrasive, chemically aggressive, or mechanically harsh environments, additional protective measures may be needed. These may include cable trays with covers, conduits, ducts, armor, protective sleeves, or customized sheath formulations.

Manufacturing Strength Behind Cable Performance

High-performance cable is not created by material selection alone. It requires consistent manufacturing processes, skilled technicians, disciplined quality control, and traceable production management. Anhui Zhishang Cable Technology Co., Ltd. is positioned as an integrated wire and cable manufacturer with R&D, production, and sales capabilities. The company operates a modern production base of approximately 5,000 square meters in Xuanzhou District, Xuancheng City, Anhui Province, China.

The company has more than 50 employees, including quality engineers and R&D technicians with over 10 years of industry experience. This practical expertise is important because cable manufacturing involves many details: conductor processing, insulation extrusion, cross-linking control, sheath compounding compatibility, dimensional accuracy, spark testing, voltage testing, marking, coiling, packaging, and final inspection. Experienced engineers can identify process risks early and improve stability.

The company is equipped with 10 automated production lines and has a monthly output capacity of up to 10 million meters. Automation supports consistent extrusion, improved dimensional control, stable production speed, and reduced variation between batches. In cable manufacturing, consistency is a major quality factor. Even if a sample performs well, batch-to-batch stability is what protects real projects. Automated equipment, when combined with skilled supervision, helps maintain reliable production quality.

Zhishang follows national standards, relevant international standards, and industry benchmarks to customize cable products according to defined requirements. The company’s business philosophy emphasizes quality orientation, integrity foundation, and stability priority. This approach matches the needs of engineering buyers who require more than a product description; they need stable supply, technical documentation, test reports, warranty support, and responsive communication.

Material Selection and Process Control

The performance of WDZ(A/B/C)-YJY depends heavily on materials. Copper conductor quality affects resistance, heating, voltage drop, and mechanical reliability. XLPE insulation quality affects dielectric strength, thermal aging, and long-term stability. Polyolefin sheath formulation affects low-smoke behavior, halogen-free performance, flame retardancy, flexibility, surface quality, and mechanical protection.

Using pure copper conductors is a key quality commitment. Copper conductors must meet cross-sectional and resistance requirements. If conductor resistance is too high, the cable may generate excess heat under load, reducing efficiency and accelerating aging. Full-core and full-length conductor integrity helps ensure that every meter of cable performs as expected.

XLPE insulation requires careful extrusion and cross-linking. The insulation layer must be uniform, concentric, and free from defects such as voids, impurities, burns, or uneven thickness. Good insulation quality reduces the risk of partial discharge, breakdown, and premature aging. Although low-voltage cables are less sensitive to some phenomena than high-voltage cables, insulation uniformity remains essential for safe operation.

The low-smoke halogen-free sheath compound must be processed correctly. Flame-retardant mineral fillers and polymer systems can be more demanding to extrude than ordinary PVC. Process temperature, screw design, extrusion speed, cooling, surface finish, and compound dryness can affect final properties. If poorly processed, the sheath may become brittle, rough, cracked, or inconsistent. Reliable manufacturing capability is therefore essential for producing low-smoke halogen-free cables that are both safe and practical.

Quality testing is an indispensable part of production. Cable tests may include conductor resistance measurement, insulation thickness inspection, sheath thickness inspection, voltage withstand testing, spark testing, mechanical property testing, flame-retardant testing, smoke density testing, halogen acid gas testing, marking inspection, and packaging inspection. For standard cable models, test reports and warranty support provide customers with confidence before installation.

OEM and ODM Customization Capabilities

Many projects require cable customization. Standard cables may not always match the exact installation environment, conductor arrangement, sheath color, packing length, marking requirement, flame-retardant class, or documentation format. Anhui Zhishang Cable Technology Co., Ltd. supports OEM and ODM development based on customer drawings or samples. This capability is valuable for contractors, distributors, equipment manufacturers, and engineering procurement teams.

Technical engineers can provide product selection guidance and tailor-made cable design solutions according to project needs. For example, a customer may need a specific cross-sectional area, multi-core structure, special sheath printing, higher flame-retardant class, or compatibility with installation in a cable tray. Another customer may require packaging suitable for export logistics, palletization, or fast jobsite deployment. Customization helps align cable supply with practical installation and commercial requirements.

Standard products are stocked for fast shipment, while customized products typically require 7 to 20 days of lead time depending on complexity, material availability, order quantity, and testing requirements. This balance between inventory and customization supports both urgent delivery and project-specific engineering. For international customers, timely communication and stable lead time are important for avoiding project delays.

Why Manufacturing Discipline Matters in Fire-Safety Cables

Fire-safety cable performance depends on formulation accuracy and production consistency. A cable may be labeled as low-smoke halogen-free, but true performance must be verified through correct materials and testing. Flame-retardant additives must be properly dispersed. The sheath thickness must be sufficient and uniform. The cable structure must remain stable during installation and operation. If manufacturing discipline is weak, real fire performance may fall short of expectations.

In competitive markets, some suppliers emphasize low price, but low price can hide compromises. Reduced conductor size can lower copper cost but increase resistance. Excessive recycled material can reduce sheath quality. Inconsistent extrusion can produce weak points. Insufficient testing can allow defects to reach the jobsite. For safety-critical cables, such compromises are unacceptable.

An advanced manufacturing process focuses on prevention rather than correction. Incoming materials should be checked. Production parameters should be controlled. Operators should be trained. Finished cables should be tested. Documentation should be maintained. Customer specifications should be reviewed before production. This systematic approach reduces risk and supports stable cable quality.

Environmental and Social Value

Low-smoke halogen-free cables also reflect a broader shift toward green and responsible building materials. While no polymer cable is completely impact-free, reducing toxic and corrosive emissions during fire improves environmental and occupational safety. It also supports the trend toward safer public infrastructure and more responsible industrial design.

Green manufacturing is part of the company’s development direction. Through continuous innovation and technological improvement, the manufacturer aims to provide products that meet modern safety expectations while supporting efficient production. Cable quality is not only a matter of electrical performance; it is also a reflection of responsibility toward installers, building occupants, maintenance teams, emergency responders, and equipment owners.

The company’s products have expanded into international markets, including the United States, Canada, Australia, Japan, and parts of Eurasia. International supply requires attention to packaging, logistics, documentation, communication, and standard differences. This experience helps the company serve diverse customer requirements and adapt cable solutions for different markets.

Limitations and Practical Selection Advice

A responsible product description should also acknowledge limitations. WDZ(A/B/C)-YJY is significantly more expensive than ordinary YJV and conventional flame-retardant ZR-YJV cables. The higher cost comes from specialized low-smoke halogen-free materials, flame-retardant formulations, processing requirements, and testing expectations. For low-risk installations where fire safety requirements are minimal, ordinary cables may appear more economical.

However, cost should be evaluated across the full lifecycle and risk profile. In a public building, data center, underground facility, hospital, or intelligent manufacturing plant, the cost of smoke hazards, evacuation difficulty, equipment corrosion, downtime, and regulatory non-compliance can greatly exceed the initial cable price difference. For high-value and high-safety environments, WDZ(A/B/C)-YJY is often the more rational long-term choice.

Mechanical performance should also be considered. Polyolefin sheaths may have slightly lower wear resistance, oil resistance, or weather resistance compared with PVC sheaths. If the installation involves frequent mechanical abrasion, oil exposure, outdoor sunlight, or harsh industrial chemicals, the cable should be protected or customized. Proper cable tray design, conduit protection, or specialized sheath solutions can address many of these concerns.

Finally, WDZ(A/B/C)-YJY should not be confused with fire-resistant cables designed to maintain circuit integrity during fire for a specified period. It is flame-retardant, low-smoke, and halogen-free. If emergency power, fire pumps, smoke extraction systems, fire alarm circuits, or life-safety circuits require circuit integrity under fire, a fire-resistant cable type may be necessary. Project engineers should distinguish between flame-retardant, low-smoke halogen-free, and fire-resistant performance requirements.

Procurement Checklist

When purchasing WDZ(A/B/C)-YJY cable, buyers should confirm the voltage grade, conductor cross-sectional area, number of cores, conductor material, conductor class, insulation and sheath materials, flame-retardant class, applicable standards, required test reports, packing length, delivery schedule, and installation environment. If the cable will be exported, documentation, labeling, packaging, and destination market requirements should also be reviewed.

Buyers should also ask whether the supplier can provide product selection guidance. A reliable cable supplier should help customers avoid undersizing, unsuitable sheath selection, incorrect flame-retardant class, and unrealistic delivery expectations. Good communication before ordering reduces the possibility of installation problems later.

For large projects, sample approval and technical submittals are useful. Samples allow visual inspection of sheath quality, marking, flexibility, and packaging. Technical documents allow engineers to verify parameters. Test reports support acceptance. Batch traceability and warranty terms provide additional assurance.

Q&A Section

Q1: What is the main difference between WDZ(A/B/C)-YJY and ordinary YJV cable?

The main difference is the sheath material and fire behavior. Ordinary YJV usually uses a PVC sheath, while WDZ(A/B/C)-YJY uses a low-smoke halogen-free polyolefin sheath. Both can use XLPE insulation and provide a 90°C long-term conductor operating temperature, but WDZ(A/B/C)-YJY produces much less smoke and does not release corrosive halogen acid gases during combustion.

Q2: Is WDZ(A/B/C)-YJY a fireproof cable?

No. It is a low-smoke, halogen-free, flame-retardant power cable. It is designed to reduce flame spread and minimize smoke and corrosive gas emission. It should not be treated as a fire-resistant cable that maintains circuit integrity during fire unless additional fire-resistant construction and certification are specified.

Q3: What do Class A, Class B, and Class C mean?

Class A, B, and C refer to different levels of bunched flame-retardant performance. Class A is generally more demanding than Class B and Class C. The correct class should be selected according to project specifications, cable installation density, building safety requirements, and applicable standards.

Q4: Why is halogen-free performance important?

Halogen-free performance reduces the release of corrosive gases such as hydrogen chloride during combustion. This helps protect people, firefighting personnel, electrical equipment, electronic systems, metal structures, and sensitive instruments from acid gas damage.

Q5: Why is low-smoke performance important?

Low-smoke performance helps maintain visibility during a fire. Better visibility supports evacuation, rescue, firefighting, and emergency response. This is especially important in enclosed or crowded environments such as tunnels, underground spaces, hospitals, stations, and high-rise buildings.

Q6: What is the typical rated voltage of this cable?

The most common rated voltage is 0.6/1kV. Other voltage grades, such as 8.7/15kV, may be available depending on project requirements and production arrangements.

Q7: What conductor material is used?

The cable uses copper conductors. Copper offers excellent conductivity, stable electrical performance, and reliable current transmission when manufactured according to proper standards.

Q8: What is the long-term operating temperature?

The maximum long-term allowable conductor operating temperature is 90°C. This is one of the key advantages of XLPE insulation and supports reliable power distribution under correctly designed load conditions.

Q9: What is the short-circuit temperature rating?

The maximum conductor temperature during a short circuit can reach 250°C for up to five seconds. Protective devices must be properly selected and coordinated to ensure fault conditions are cleared within acceptable limits.

Q10: Can this cable be installed in cold weather?

The installation temperature should not be below 0°C. Installing at lower temperatures may increase the risk of sheath or insulation damage. If cold-weather installation is unavoidable, special handling precautions and manufacturer guidance should be followed.

Q11: What is the minimum bending radius?

The minimum bending radius is generally the same as the YJV series: at least 20 times the cable diameter for single-core cables and at least 15 times the cable diameter for multi-core cables. Respecting bending limits helps protect insulation and sheath integrity.

Q12: Is WDZ(A/B/C)-YJY more expensive than YJV or ZR-YJV?

Yes. It is usually more expensive because of its low-smoke halogen-free sheath materials, flame-retardant formulation, and manufacturing requirements. However, in safety-critical environments, the improved fire behavior and reduced secondary damage risk often justify the cost.

Q13: Where is this cable most suitable?

It is suitable for public spaces, critical facilities, enclosed environments, crowded buildings, underground structures, industrial control areas, data centers, hospitals, transportation facilities, commercial complexes, and places containing sensitive equipment.

Q14: Can the cable be customized?

Yes. Anhui Zhishang Cable Technology Co., Ltd. supports OEM and ODM customization based on customer drawings, samples, and project requirements. Customization may include cable structure, conductor size, core number, flame-retardant class, sheath color, printing, packaging, and technical documentation.

Q15: What makes the manufacturer competitive?

The company integrates R&D, production, and sales; operates a modern production base of about 5,000 square meters; uses 10 automated production lines; has experienced quality and R&D personnel; supports monthly output up to 10 million meters; and provides product test reports, warranty support, standard stock, and customized production lead times typically ranging from 7 to 20 days.

Conclusion

WDZ(A/B/C)-YJY XLPE insulated and sheathed power cable is a modern solution for power distribution systems that require both dependable electrical performance and improved fire safety behavior. Its copper conductor and XLPE insulation provide the proven advantages of high conductivity, 90°C operating temperature, and strong thermal stability. Its low-smoke halogen-free polyolefin sheath provides the critical added value of cleaner combustion, reduced corrosive gas emission, lower smoke density, and improved evacuation visibility.

Compared with ordinary YJV and conventional ZR-YJV cables, WDZ(A/B/C)-YJY offers a more complete safety profile. It is especially suitable for crowded public areas, enclosed spaces, critical infrastructure, intelligent manufacturing facilities, hospitals, data centers, transportation systems, and sensitive equipment environments. While its cost is higher and its sheath may require proper protection in harsh mechanical or chemical environments, its benefits are compelling where life safety, equipment protection, and regulatory compliance matter.

The manufacturing capability behind the cable is equally important. Anhui Zhishang Cable Technology Co., Ltd. combines automated production, experienced technical personnel, quality assurance, customization capability, and international market experience to provide stable cable solutions. Its focus on quality orientation, integrity, and stable performance supports customers who need dependable power cables for demanding engineering projects.

For engineers, contractors, distributors, and project owners seeking a safer alternative to conventional PVC-sheathed power cables, WDZ(A/B/C)-YJY represents a practical and forward-looking choice. It demonstrates that cable selection is not only about transmitting electricity; it is also about protecting people, preserving equipment, supporting emergency response, and building safer electrical infrastructure.

References

International Electrotechnical Commission. IEC 60332-3 Series: Tests on Electric and Optical Fibre Cables Under Fire Conditions, Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables.

International Electrotechnical Commission. IEC 60754 Series: Test on Gases Evolved During Combustion of Materials from Cables.

International Electrotechnical Commission. IEC 61034 Series: Measurement of Smoke Density of Cables Burning Under Defined Conditions.

International Electrotechnical Commission. IEC 60502 Series: Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1 kV up to 30 kV.

National and industry cable standards for XLPE insulated power cables, flame-retardant cable testing, low-smoke halogen-free material performance, and low-voltage power distribution engineering.

Zhang Mengyao — Product Sales Consultant

5 years of experience in selling power cables, communication cables, automotive cables, and specialty cables, focusing on product selection guidance, order tracking, and fast shipment coordination for standard models.