15kv 3core 35mm^2 XLPE Insulated 133% Insulation Armor Cable

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2025-07-04 01:47:33

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15kV 3×35mm² XLPE Insulated Armored Power Cable

Manufactured with triple-layer co-extrusion technology, this Mv Cable features GB/T 3956 Class 2 Copper Conductors and extra-thick XLPE insulation (133% of standard). Tested by National Cable Inspection Center:

Partial discharge ≤5pC (vs IEC60502's 10pC)
Withstands 22kV/30min AC test
Lightning impulse 95kV (10+10 shots)
Continuous operation at 90℃ (130℃ emergency)

TECHNICAL SPECIFICATIONS

■ Electrical Properties

Voltage: 8.7/15kV
Insulation: 5.4mm (133% standard)
Capacitance: 0.18μF/km
Tanδ: ≤0.001@90℃

■ Mechanical Performance

Bending radius: 12D fixed/18D flexible
Tensile strength: ≥400N/mm² (armor)
Crush resistance: 3000N/100mm (IEC60229)

■ Environmental

Temperature: -40℃~+90℃
Flame retardant: Optional IEC60332-3 Cat A
Corrosion: Passes 1000h salt spray test

PRECISION MANUFACTURING

① Conductor: 54-basket strander (≥93% fill)
② Screening: Ultra-smooth semiconductor (Ra≤5μm)
③ Insulation: CCV line (110kV-grade process)
④ Armor: 45° helical wire lay (gap≤0.5mm)

INSTALLATION GUIDE

■ Direct burial: Sand cushion+warning tape
■ Tray: Fireproof cleats @1.5m spacing
■ Termination: Stress cone+grounding mandatory
■ Commissioning: GB/T 12706.3-2020