0.6/1 Kv Underground Power Cable Nayy Na2xy 3X50 4X70 XLPE PVC Insulated Aluminium Conductor Multi-Core High Voltage

1. Product Parameters

• Type: Nayy 3×50mm² / Na2xy 4×70mm²

• Voltage Rating: U0/U 0.6/1kV

• Conductor: EC-grade 1350 Al alloy

• Conductor Class: Class 2 stranded (GB/T 3956)

• Insulation: XLPE 1.4mm + PVC 1.2mm

• Sheath: Black PVC 2.0mm

• Operating Temp: 90℃ (conductor)

• Short-circuit Temp: 250℃ (5s max)

2. Key Features

• German Troester triple-layer extrusion line

• DC resistance meets IEC 60228 Class 2

• Insulation resistance ≥100MΩ·km (20℃)

• GB/T 18380.12 flame test certified

• Excellent acid/alkali resistance (pH 2-12)

• Service life ≥25 years underground

3. Applications

• Urban utility tunnels

• Residential underground networks

• Industrial Cable trenches

• Agricultural irrigation systems

• Temporary construction power supply

4. Installation Requirements

• Minimum burial depth: 0.7m

• Bending radius ≥12×cable diameter

• Ambient temp ≥-10℃ during installation

• 2×cable spacing for parallel laying

• Conduit inner diameter ≥1.5×cable OD

5. Construction

• Conductor: Non-compacted round stranded

• Insulation: XLPE inner layer (90℃ rated)

• Optional anti-termite PVC Sheath

• Continuous marking (type/voltage rating)

• Optimized lay length (12-16×OD)

6. Manufacturing

• Continuous annealing for conductor

• Online eccentricity monitor (0.01mm)

• Automatic cabler (max 30rpm)

• 100% 3.5kV/5min voltage test

• Partial discharge test (≤10pC)

7. Packaging & Storage

• ISO-standard steel-wood drums

• Minimum 200m/drum

• Heat-shrink end caps + sealing tape

• GPS-tracked transportation

• Dry and ventilated storage

8. Delivery Terms

• Standard sizes in 10 workdays

• Third-party test reports (SGS/BV)

• On-site technical guidance

• 50m samples available

• L/C, T/T payment accepted

9. After-Sales

• 36-month warranty

• 24/7 technical support

• On-site service within 48h

• Regular maintenance guidance

• Dedicated customer profiles