Engineering Excellence: The 11-Layer Defense System

Shenghua’s STA armoured cables deploy a meticulously tiered architecture to conquer industrial hazards:

1. ​​Conductor​​: Stranded aluminum core (IEC 60228 Class 2) balances conductivity with lightweight efficiency—crucial for long-distance burial
    
2. ​​EMI Shielding​​: Dual semi-conductive layers + copper tape screen neutralize electromagnetic interference from transformers or heavy machinery
    
3. ​​Insulation​​: XLPE withstands 250°C short-circuit spikes (5 sec) and continuous 90°C operation—outperforming PVC in heat resistance
    
4. ​​Armouring​​: Galvanized steel tape (STA) resists crushing loads (>90% coverage), rodent attacks, and chemical corrosion
    
5. ​​Sheathing​​: PVC outer layer (red/black) provides flame retardancy (EN 60332-1-2) and UV/chemical resilience

Performance Benchmarks: Where Shenghua Dominates

Applications Demanding YJLV22 3x300

1. ​​Underground Power Transmission​​
   STA armouring prevents soil compression and rodent damage in urban substations—ideal for direct-buried Category B systems (8-hour fault tolerance)
    
2. ​​Heavy Industrial Plants​​
   Aluminum conductors reduce weight by 60% vs. copper while handling 300mm² cross-sections for crane systems and compressors in steel mills
    
3. ​​Renewable Energy Farms​​
   XLPE insulation resists salt/UV degradation, while STA protects against rock abrasion in wind/solar trench installations
    

Why Global Contractors Trust Shenghua

• ​​40+ Years of Expertise​​: OEM customization for cores (1–3), voltages (3.6kV–36kV), armouring (STA/SWA), and sheaths (PVC/LSOH)
   
• ​​Rigorous Certifications​​: ISO 9001, KEMA, RoHS, GB/T 12706.2-2008, and PICC-backed 12-month warranty
   
• ​​Global Logistics​​: Wooden/steel drum packaging with moisture-proof sealing; optimized 20FT/40FT container loading
   
• ​​24/7 Support​​: Technical guidance + rapid sampling (20cm free samples available)

Construction

AL/XLPE/STA/PVC Armoured Electrical Cable

- Round bare aluminum core stranded according to IEC 60228
- Inner semi-conductive layer
- Core insulation XLPE
- Color code according to HD 308 S2
- Outer semi-conductive layer
- Semi-conductive tape
- Copper tape screen
- Filler
- PVC inner sheath
- Galvanized steel tape armour (STA)
- PVC outer sheath (red or black)

Code name:
YJ: XLPE insulation
L: Aluminum conductor
V: PVC sheath
32:Steel wire armoring—3 cores
22:Steel tape armoring—3 cores
72: Aluminum wire armoring—1 core
62: Stainless steel tape armoring—1 core
ZR: Flame resistant

Application

Used for power transmission and distribution line with voltage rated at 35kV and below.
High and Medium voltage power cable for static application in ground, within and outside facilities, outdoor, in cable canals, in water, in conditions where cables are not exposed to heavier mechanical stress and tensile strain.

Compared with PVC Insulated Power Cable, xlpe power cable boasts not only characteristics of excellent electricity, mechanism, heat and aging-resistant, environment stress-resistant and chemical corrosion-resistant, but also simple structure, light weight, no restriction by laying drop, and high temperature allowance for long-term working.