Waterproof rubber cables are specifically designed for submersible motors operating at AC voltages up to 500V. These cables maintain excellent electrical insulation properties even under prolonged water immersion and high water pressure, making them ideal for underwater applications. In addition to their insulation capabilities, they also offer superior flexibility, allowing them to endure repeated bending and movement without damage.
The core of a waterproof rubber soft cable plays a crucial role in its overall performance. First, the cushioning core must effectively absorb impact and compression forces without increasing the outer diameter too much. It should be designed to properly fill any gaps between the insulated cores, ensuring a compact and stable structure. Second, the mechanical properties of the core must meet or exceed those of the insulating rubber to ensure durability. Lastly, the core should not stick to the insulation layer, which could compromise the cable's integrity over time.
The sheath of a waterproof rubber soft cable is equally important. It needs to provide sufficient mechanical strength and excellent wear resistance, especially for underground installations where flame retardance is essential. For this reason, neoprene is commonly used, with a gel content of at least 50% to ensure optimal performance. Additionally, for 6KV mobile rubber-sheathed cables, the sheath must have strong electrical insulation properties to enhance resistance against corona cracking, improving the cable’s long-term reliability and safety.
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