In the extreme working conditions of deep-sea high pressure, high temperature, and high oil content, the stable operation of submersible motors is a core guarantee for oil and gas extraction. A “robust and durable” core wire is crucial for their continuous power output. Today, we highly recommend the special polyimide copper round wire for submersible motors. With ten core advantages and stringent performance standards, it is the preferred choice for motor and cable insulation cores in extreme environments!
This product has a wide range of applications. It is not only suitable for winding wires of submersible motors below H-class, oil-filled special motors, and various special-purpose motors, but also can be used for submersible pump cable insulation cores, perfectly meeting the power needs in complex environments. Supported by multiple authoritative standards, from enterprise standards to JB/T and GB/T series national standards, every meter of wire is guaranteed to have reliable quality.
In terms of materials and processes, the product uses high-voltage, high-temperature, and high-oil-resistant polyimide extrusion materials, combined with the latest high-pressure extrusion technology, achieving one-time insulation extrusion molding. The insulation layer is dense, uniform, and seamless, which not only precisely controls the thickness and improves concentricity, but also significantly enhances the voltage resistance. The thinner insulation layer design improves space utilization, contributing to increased motor power density, while the smaller conductor size effectively reduces equipment volume and production costs.
The excellent structural characteristics give the product many highlights: the seamless and dense insulation layer provides excellent wear and scratch resistance, better heat dissipation efficiency, and excellent moisture-proof and leak-proof sealing effect; the uniform pressure extrusion process results in better adhesion of the insulation layer, outstanding flexibility, and bending performance far exceeding ordinary wires; the stable and uniform structure has no inherent weaknesses, the aging process is slow and uniform, significantly extending the service life and ensuring the long-term stable operation of the equipment.
In terms of performance parameters, the product is even more refined. The conductor nominal diameter covers a full range from 1.500mm to 5.000mm, with strictly controlled tolerances and stable DC resistance within a precise range;
Three insulation grades are available, with nominal thicknesses from 0.12mm to 0.30mm, a maximum withstand voltage of 10000V, and a peak breakdown voltage of 23000V;
The minimum elongation at break is no less than 25%, and it shows no cracking after rigorous tests including winding on a round rod, twisting, and thermal shock. It remains stable in a 260℃ high-temperature environment and does not soften or break down within 2 minutes at 450℃.
From the breakdown voltage retention rate of no less than 80% in oil and water resistance tests, to the abrasion resistance of up to 20000 cycles under 7N pressure, and the continuous insulation design without pinholes, every performance aspect has been rigorously verified. From rebound angle control to adhesion testing, it fully meets the requirements for use in extreme environments, providing durable, stable, and safe power protection for submersible equipment and special motors.
Choosing this special polyimide copper round wire means choosing a reliable, efficient, and durable core component. If you are struggling to select a motor for extreme environments, this product, which combines multiple advantages, is absolutely trustworthy!
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