Engineering Resilience: Shanghai Shenghua’s Armoured LSZH Cables for Critical Infrastructure​​

Shanghai Shenghua Cable (Group) Co., Ltd.—ranked China’s #2 cable manufacturer with 110,000 km annual output and 21 ISO-certified factories—redefines safety in high-risk environments with its Steel Tape Armoured LSZH Cables. Combining military-grade mechanical protection, zero-halogen innovation, and extreme thermal resilience, these IEC 60502-certified solutions safeguard tunnels, hospitals, and industrial plants against fire hazards and physical damage.

1. Triple-Layer Defense: Armor, Safety & Sustainability​​

• Military-Grade Armor​​:
  • Galvanized Steel Tape Armour (WDZA-YJY23): Absorbs crushing forces up to 3,500 N/cm² in underground installations, outperforming unarmored cables by 70% in impact resistance
     
  • Helical Application: Prevents armor separation during bending (15×[d+D] radius), ideal for serpentine tunnel layouts
     
• Zero-Halogen Safety​​:
  • LSZH Sheath & Insulation: Eliminates toxic fumes (HCl, dioxins), reducing smoke density to <20% of PVC cables and ensuring ≥60% light transmittance for evacuation clarity
     
  • Eco-Compliance: Halogen-free materials align with RoHS and EU CPR, with combustion gas pH ≥4.3 to prevent equipment corrosion.
• Thermal Resilience​​:
  • 90°C Continuous Operation + 250°C Short-Circuit Survival (5s): Ensures functionality in boiler rooms or chemical plants during overloads
     

2. Technical Superiority & Global Certifications​​

Key Specifications (WDZA-YJY23 Series):

Certifications:

• Safety: IEC 60332-1 (Flame Spread), IEC 61034 (Low Smoke), IEC 60754 (Zero Halogen)
   
• Global Compliance: CE, KEMA, GB/T 12706, with optional BS/DIN/ICEA marks
   

3. Applications Redefining Safety​​

• Underground Tunnels & Subways​​:
  • Steel tape armor resists rockfall and excavation machinery, while LSZH sheath prevents toxic smoke in confined spaces (e.g., 1×400mm² supports 695A in soil)
     
• Hospital ICU/Operating Theaters​​:
  • BS 7870 Color Coding: Brown/Blue/Grey sheathing simplifies phase identification during emergency maintenance
     
  • Ultra-Low Resistance: 0.047 Ω/km (400mm²) minimizes energy loss for life-support systems
     
• Chemical Plants & Oil Rigs​​:
  • XLPE insulation withstands hydrocarbon exposure, while armor prevents corrosion from acidic vapors
     

4. Why Global Engineers Trust Shenghua?​​

• Manufacturing Prowess​​:
  • Zero-Defect Policy: 100% IACS copper purity and XLPE insulation tested per IEC 60502
     
  • Scalable Production: 10-day global delivery of moisture-sealed reels with BOPP tape + hygroscopic caps.
• Sustainability Commitment​​:
  • 95% Recyclable Materials: Copper conductors and steel armor reduce landfill waste vs. PVC alternatives
     
• Unmatched Support​​:
  • 24/7 Technical Hotline: 72-hour global response for urgent infrastructure project

Conductor: Class 1/2 annealed bare copper solid or strands. This wires are formed into final conductor in the stranding machines under strict quality surveillance.

Insulation: Cross linked polyethylene compound or PVC is insulated over the conductors by extrusion process.The raw materials and thicknesses of Insulation are maintained as per standards and conform to IEC60502/BS7870 Standards as the case may be.

XLPE:Insulated Power Cable are identified either by colour or by numbers as follows:
No. of cores Identification
Old Colour coding New Colour coding as per BS
1 Red or Black Brown or Blue
2 Red & Black Brown, Blue
3 Red, Yellow Blue Brown, Black, Grey
4 Red, Yellow, Blue & Black Blue, Brown, Black, Grey
5 Red, Yellow, Blue, Black, Y/G Blue, Brown, Black, Grey & Y/G

Armour : When armouring is required, the armour consists of single layer of galvanised steel wires/galvanized steel tapes.
The armour is applied helically as per standards.
Single core cables are armoured with Aluminium Wires or Copper wires based on requirement.

Outer sheath : Standard cables are manufactured with Extruded black PVC. Outersheath is embossed or printed with the information required by relevant standards.
Special FR, FRLS, FRRT, LSF, MDPE compounds are used for outersheathing of cables, to suit customer’s specific requirements.

Standards

International: IEC 60502, IEC 60227 IEC 60331, IEC 61034

China: GB/T 12706-91 GB306.1-2001, GB/T18380.3-2001

Other standards such as BS,DIN and ICEA upon request

Technical data

Rated voltage: 0.6-KV

Max. Conductor Temp.:normal (90℃), short circuit no more than 5 s (the highest temperature of conductor shall no more than 250°C )

Min. Ambient Temp.:The cable shall be pre heated if the ambient temperature is below 0°C

Min. Bending Radius: single core cable 20(d+D)±5% ,Multi-core cable 15(d+D)±5%

About Shenghua:

The biggest cable Manufacturer in China

Listed as No.2 of TOP 10 Cable Manufacturers

3 branch factories listed as Top 10 Cable Factories in China

Originated in 1950 and found in 1997

21 branch factories around China

80--available types of cables

600--sales branches and offices around the world

5000--Employees

1332000 m2--Total spaces
1100000 km--Annual output of cables
10000000000 RMB--Annual sales amount