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ZR-YJV Flame Retardant XLPE Insulated Copper Core Power Cable Enhanced Fire Safety
ZR-YJV IEC 60502 Pure Copper PVC/CU/STA YJV Copper Core Multi-Model Power Cable 1-5 Core
ZR-YJV is a Flame-Retardant XLPE Insulated PVC Sheathed Power Cable with copper conductors, designed to inhibit flame propagation and enhance safety in electrical power distribution systems.
Cable Designation Breakdown
ZR: Flame Retardant (Chinese standard designation)
YJ: XLPE (Cross-Linked Polyethylene) Insulation
V: PVC (Polyvinyl Chloride) Sheath
Applications
Building Power Distribution: Main electrical circuits in commercial/residential buildings
Industrial Plants: Wiring for machinery, control systems, and power supply in factories
Public Infrastructure: Schools, hospitals, and shopping malls requiring enhanced fire safety
Energy Systems: Solar farms and wind power installations (with UV protection if outdoors)
Key Advantages
Enhanced Fire Safety: Reduces flame propagation and minimizes fire risks
Reliability: XLPE insulation ensures efficient power transmission under high loads
Versatility: Available in single-core/multicore designs, with options for aluminum conductors (ZR-YJLV)
Cost-Effectiveness: Balances performance and safety for general to demanding applications
ZR-YJV is ideal for projects requiring flame retardancy without the need for full fire resistance. For extreme fire scenarios (e.g., circuit integrity during fires), consider NH-YJV (fire-resistant) or WDZ-YJV (LSZH) variants. Customizable conductor sizes, armor (ZR-YJV22), and shielding available. Consult technical datasheets for details.
Technical Specifications
Nominal Sectional Area (mm²)
Insulation Thickness (mm)
Sheath Thickness (mm)
Approx. Diameter of Cable (mm)
3*1+1*2.5
0.7
1.5
13
3*6+1*4
0.7
1.5
14
3*10+1*6
0.7
1.5
16
3*16+1*10
0.7
1.5
18
3*25+1*16
0.9
2.0
22
3*35+1*16
0.9
2.0
24
3*50+1*25
1.0
2.0
28
3*70+1*35
1.1
2.0
31
3*95+1*50
1.1
2.0
36
3*120+1*70
1.2
2.5
40
3*150+1*70
1.4
2.5
44
3*185+1*95
1.6
3.0
48
3*240+1*120
1.7
3.0
53
Frequently Asked Questions
1. What does ZR-YJV stand for?
ZR: Flame Retardant
YJ: XLPE (Cross-Linked Polyethylene) Insulation
V: PVC (Polyvinyl Chloride) Sheath
It is a flame-retardant, XLPE insulated power cable with copper conductors, designed to inhibit the spread of fire along its length.
2. What is the primary function of the "Flame Retardant" property?
The core function is fire containment. When exposed to flame, a ZR-YJV cable is designed to self-extinguish and limit flame propagation once the ignition source is removed. This helps prevent a local fire from spreading along cable routes, buying critical time for evacuation and firefighting.
3. What do the flame-retardant classes (ZRA, ZRB, ZRC) mean?
These letters indicate different performance levels in a standardized multi-cable vertical flame test (e.g., IEC 60332-3). They represent the cable's ability to resist flame spread under increasingly severe conditions:
ZRA (Category A): Highest performance. For critical, high-density cable installations.
ZRB (Category B): Medium/High performance. Common for general commercial and industrial buildings.
ZRC (Category C): Standard performance. Often the default when only "ZR" is specified.
4. Where is ZR-YJV cable typically required?
It is specified in buildings and installations where controlling fire spread is a priority, especially in vertical pathways or bundled cables. Common applications include:
Cable risers in building shafts
Cable trays and ladders in industrial plants, power stations, and data centers
Commercial complexes like shopping malls, hotels, and office towers
Public transportation hubs (subways, airports)
5. How is it different from a Fire-Resistant (NH) or LSZH (WDZ) cable?
This is a crucial distinction:
ZR-YJV (Flame Retardant): Stops fire from spreading along the cable. The cable may be damaged, but it won't fuel the fire's progression.
NH-YJV (Fire-Resistant): Keeps working during a fire. Maintains circuit integrity for a specified time to power emergency systems (alarms, lighting).
WDZ-YJV (LSZH): Prevents toxic smoke & gases. Focuses on human safety during evacuation by emitting very low smoke and no corrosive halogen gases when burned.
6. What are the standard electrical specifications?
Rated Voltage: 0.6/1 kV (Standard Low Voltage). Medium Voltage versions (e.g., 8.7/15kV) are also available
Max. Operating Temperature: 90°C (due to XLPE insulation)
Short-Circuit Withstand: 250°C (max 5 seconds)
7. Is ZR-YJV suitable for direct burial or outdoor use?
The standard version is primarily for indoor installations (cable trays, conduits, ducts). For direct burial or outdoor exposure, an armored variant like ZR-YJV22 (with steel tape armor and a protective outer sheath) must be used to provide mechanical and environmental protection.
8. What international standards does it comply with?
Regional Standards: Can be manufactured to meet GB/T 19666 (China), BS 6724 (UK), or other national specifications
9. What are the common variants?
ZR-YJV22: Steel tape armored version for mechanical protection
ZR-YJLV: Aluminum conductor version for cost-saving on large projects
ZA-YJV / ZB-YJV / ZC-YJV: Explicitly specifies the flame-retardant category (A, B, or C)
10. Why choose ZR-YJV for my project?
Choose ZR-YJV as the essential safety upgrade from standard YJV cables when your project's electrical codes or safety philosophy require a demonstrated level of fire spread containment. It offers a balanced and cost-effective solution for enhancing fire safety in general power distribution without the need for the more specialized (and expensive) properties of fire-resistant (NH) or LSZH (WDZ) cables.
11. What is the packaging method for this type of cable?
Iron-Wood Cable Reel Packaging
Service of JinHong Company
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.
Packaging of JinHong:
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.
