WDZ(A/B/C/D)-BYJ WDZ(A/B/C/D)N-BYJ Building Wire

WDZ(A/B/C/D)-BYJ/WDZ(A/B/C/D)N-BYJ Cable Advantages  
High-Level Fire Safety: Grade A flame-retardant provides the highest level of flame spread suppression  
Environmental and Health Protection: Halogen-free, low-smoke characteristics reduce secondary fire hazards and ensure personnel escape safety  
Excellent Electrical Performance: Cross-linked polyethylene insulation offers high temperature resistance (90°C), high current-carrying capacity, and long service life  
Reliable Fire Resistance Performance: Type N maintains circuit integrity during fires, buying time for critical equipment power supply  
Strong Adaptability: Different flame-retardant grades meet the requirements of various building risk areas  

WDZ(A/B/C/D)-BYJ/WDZ(A/B/C/D)N-BYJ Cable Selling Points  
Mandatory Cable for High-End Buildings: Grade A flame-retardant is essential for densely populated places such as super high-rises, subways, and airports  
Benchmark Product for Environmental Safety: Halogen-free, low-smoke characteristics meet green building certification requirements (LEED/BREEAM)  
Comprehensive Fire Protection Solution: Flame-retardant grades A to D and fire-resistant types cover all building fire protection needs  
Long Lifespan and Low Maintenance: Cross-linked polyethylene insulation resists aging, with a design lifespan of over 30 years  
Complete Compliance Assurance: Complies with the latest national fire protection standards, with complete supporting test reports  

WDZ(A/B/C/D)-BYJ/WDZ(A/B/C/D)N-BYJ Cable Application Scope  
Core Areas of Public Buildings: Airport terminals, high-speed railway stations, subway stations, hospital outpatient halls  
Densely Populated Places: Commercial complexes, exhibition centers, stadiums, school teaching buildings  
Special Risk Areas: Underground spaces, high-rise building shafts, substations, data centers  
Fire Protection Guarantee Circuits: Fire pump rooms, smoke exhaust rooms, emergency lighting, fire alarm systems  
Green Building Projects: LEED/BREEAM certified projects, star-rated hotels, high-end residences  
Compliance Certifications: CCC/ROHS

Conductor: Annealed copper conductor (Class 1 or Class 2)  
Cross-sectional range:1.5 mm² to 400 mm² (common)  
Insulation material: Cross-linked polyethylene (XLPE)  
Rated voltage:** 450/750 V  
Long-term allowable operating temperature:90°C (significantly higher than the 70°C of ordinary BV wires)  
Short-circuit temperature:Maximum 250°C (duration ≤ 5 seconds)  
Installation temperature: ≥ 0°C  
Minimum bending radius during installation: ≥ 6 × D (cable outer diameter) (higher requirement compared to the 4D for PVC insulation)  
Flame retardant rating: Classes A, B, C, D, requiring bundle flame tests according to standards such as GB/T 18380.33-2008, assessing flame spread height and self-extinguishing time.  
Halogen-free: Complies with GB/T 17650, with released gas pH ≥ 4.3 and conductivity ≤ 10 μS/mm during combustion, indicating low corrosiveness.  
Low-smoke: Complies with GB/T 17651, with light transmittance ≥ 60% (or 80%) during combustion, indicating sparse smoke.  
Insulation resistance at 90°C:≥ 0.010 MΩ·km
WDZ(A/B/C/D)N-BYJ: Fire resistance.