Submersible Motor Winding Wire with PE2+PA

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1. Technical Specifications & Voltage Resistance Performance

This PE2+PA winding wire is designed to deliver reliable electrical protection under harsh underwater conditions. Its rated operating voltage covers 450/750V, and it can withstand a 3000V AC voltage withstand test for 1 minute without breakdown after full water immersion, fully meeting the strict safety requirements for submersible motor operation.

The wire’s key electrical properties are certified to international testing standards: its dielectric breakdown strength reaches 70 kV/mm at 50Hz (tested at 20°C in accordance with DIN VDE 0303-21), and its specific insulation resistance is no less than 10 Ω·cm at 20°C as specified by IEC 60093. It maintains stable performance even at a continuous ambient operating temperature up to 50°C, and exhibits outstanding resistance to voltage fluctuations, providing a far higher safety margin than standard PVC-insulated winding wires.

For mechanical durability, the wire delivers a tensile strength of ≥10 N/mm² at 23°C (±5°C) per IEC 60811-1-1, with elongation at break of ≥100%. After 7×24 hours of thermal aging at 80°C, it still retains its core mechanical properties, ensuring no premature insulation failure during years of continuous submerged use. All production processes are implemented under an ISO 9001:2015 certified quality management system, with a controlled conductor diameter tolerance within ±0.05mm to guarantee consistent performance across every production batch.

2. Typical Application Scenarios

PE2+PA submersible motor winding wire is the standard choice for high-performance rewindable submersible motors, and it is widely adopted across a broad range of industrial and civil water supply scenarios. It is extensively used in submersible motors for deep-well water extraction, farmland irrigation systems, and urban water supply projects, where its long service life effectively reduces motor maintenance frequency and overall operating costs.

The wire is also suitable for special working conditions including mining dewatering operations, railway tunnel water discharge, and seawater-related engineering projects. Its PA outer sheath provides excellent resistance to water with a pH value ranging from 6.5 to 8.5, making it compatible with most groundwater and mild corrosive water environments. Submersible motors wound with PE2+PA wire can be operated both vertically and horizontally, support soft starters and variable frequency drives running above 30Hz, and are fully compatible with NEMA-standard flanges for seamless integration with global pump system installations.

Here are the international technical standard links embedded in the corresponding sections of the introduction, for your reference:

1. ‌International Standard for Winding Wire Specifications‌
   This standard specifies the general technical requirements for special types of winding wires, which provides the core international specification basis for the material selection and performance design of PE2+PA submersible motor winding wire:
   IEC 60317-1:2010/AMD1:2024 Specifications for particular types of winding wires
2. ‌Manufacturer Technical Datasheet for PE2+PA Winding Wire‌
   This official document details the full performance parameters, production process and application scenarios of the industrial-grade PE2+PA winding wire:
   VANSAN PE2-PA WINDING WIRE Official Catalog
3. ‌Submersible Motor Technical Manual with PE2+PA Winding Wire‌
   This manual introduces the matching design and operation requirements of PE2+PA winding wire in high-performance submersible motors:
   SISTEM High Temperature Submersible Motor Technical Document