Copper Winding Wire with HL+XLPE + PA Double Insulation Layers&Sheath for Submersible Motor

Core Conductor: High-Purity Oxygen-Free Copper for Maximum Conductivity

Every meter of this winding wire starts with 100% high-purity oxygen-free copper as the core conductor. Zhengzhou Tasuu strictly controls the copper purity above 99.95%, and offers a full range of conductor specifications from Φ0.20 mm to Φ5.00 mm, covering single solid wire and multi-strand stranded structures including 7 strands, 19 strands, 37 strands, 49 strands and 61 strands. This precise conductor design not only ensures extremely low electrical resistance and high energy transmission efficiency, but also significantly enhances tensile strength and bending resistance — effectively preventing conductor breakage during automatic winding, motor embedding and long-term deep-water vibration operation. All conductor raw materials and finished products are tested in accordance with GB/T 3953-83 Electrical Copper Wires and GB/T 4901.1-85 Test Methods for Bare Copper Wires, guaranteeing consistent electrical performance and mechanical stability for every batch.

HL+XLPE+PA Double Insulation & Sheath: The Industry-Leading Protection System

The most prominent advantage of Zhengzhou Tasuu’s submersible motor winding wire lies in its innovative HL+XLPE+PA double insulation layers and sheath composite structure:

1. HL (High-performance Overlay Layer): The innermost special modified high-adhesion overlay layer tightly wraps the copper conductor, eliminating any tiny gaps between the conductor and the main insulation layer. This design effectively prevents water molecules from penetrating along the conductor surface, avoiding the “water tree” aging phenomenon that is the main cause of early insulation failure in traditional submersible winding wires.
2. XLPE (Cross-Linked Polyethylene) Main Insulation Layer: The cross-linked polyethylene material forms a dense three-dimensional molecular structure after special processing, providing excellent heat resistance, electrical insulation and water immersion stability. It can continuously withstand long-term operation at temperatures up to 90°C, and offers outstanding resistance to electrical breakdown and corona erosion, making it fully compatible with variable frequency speed regulation systems widely used in modern submersible pump equipment.
3. PA (Polyamide/Nylon) Outer Sheath: The high-strength nylon outer jacket delivers exceptional mechanical protection, with strong abrasion resistance, pressure resistance and chemical corrosion resistance. It can effectively withstand the friction during motor winding and embedding, and resist the erosion of water containing trace amounts of acid, alkali, salt and oil in mine water, seawater and industrial wastewater scenarios.

This three-layer composite structure perfectly meets the requirements of JB/T 4014-2013 Submersible Motor Winding Wire and GB/T 4014-85 Polyethylene Insulated Nylon Sheathed Winding Wire. The finished wire can easily pass the 3000V 1-minute water immersion withstand voltage test without breakdown, and can operate stably for a long time in water with a pH value of 6.5 to 8.5 under working pressure up to 10kgf/cm².

Full Specification Range for Diverse Application Scenarios

Zhengzhou Tasuu’s HL+XLPE+PA submersible motor winding wire covers a complete product series to adapt to different working conditions:

• Voltage Class: From 450/750V low-voltage models for small household submersible pumps to 3kV, 6kV, 6.6kV and 10kV high-voltage models for large industrial submersible motors.
• Performance Series: Including general-purpose series, high-voltage resistant series, high-temperature resistant series (150°C grade), special frequency conversion series and acid-alkali-salt corrosion resistant series.
• Application Fields: Widely used in agricultural deep-well irrigation submersible pumps, urban water supply submersible motors, mine drainage wet-type motors, railway tunnel water discharge equipment, seawater aquaculture submersible units and other special underwater operation scenarios.

Zhengzhou Tasuu: Your Reliable Partner for Submersible Winding Wire Solutions

Located in Zhengzhou, a central transportation hub in China, Zhengzhou Tasuu Windingwire Industry Co., Ltd. integrates independent R&D, precision manufacturing and strict quality control into every production link. The company is equipped with advanced automated wire drawing, insulation extrusion and online testing equipment, which can control the wire diameter tolerance within ±0.05mm, ensuring that every meter of winding wire delivered to customers meets the highest quality standards. Whether you need standard off-the-shelf specifications or customized products for special working conditions, Zhengzhou Tasuu can provide you with professional technical support, fast delivery and cost-effective solutions to help your submersible motor products achieve longer service life and more stable operation performance in various harsh underwater environments.