3 Cores Pool Robot Cable, Conductor Type : CU

The cable of a pool cleaning robot is a critical component that directly impacts the device's performance, maneuverability, and longevity. It is far more than a simple power cord; it is a dynamic link engineered for a demanding aquatic environment.

1. （Core Design Objectives）

• Tangle Prevention: The cable must be designed to minimize memory and resist twisting, allowing it to lay flat on the water's surface or in the water as the robot moves in complex patterns. A tangled cable can restrict the robot's movement and render it ineffective.

• Durability in Harsh Conditions: The cable is constantly exposed to a cocktail of chemicals (chlorine, bromine), UV rays from the sun, and wide temperature variations. The materials must not degrade, become brittle, or crack under these conditions.

• Optimal Buoyancy: The cable is typically designed to be neutrally buoyant or slightly positive. This prevents it from sinking and getting caught in the robot's tracks or brushes, while also reducing drag on the robot, which conserves battery power (for cordless models that use a cable for docking/charging) or improves efficiency.

2. （Key Characteristics & Construction）

• Conductors: Fine-stranded, tinned copper conductors are often used. The tinning provides an extra layer of protection against corrosion from moisture ingress over time.

• Insulation and Jacket: The primary insulating and jacket material is almost always a high-grade PVC or Thermoplastic Elastomer (TPE).

  • PVC: Cost-effective and offers good general resistance.

  • TPE/TPR: Often preferred for superior flexibility, a wider temperature range, and better resistance to kinking. It feels softer and is more durable in the long term.

• Waterproofing: A critical aspect is the waterproof joint where the cable enters the robot's body. This is typically achieved with a robust molded potting seal that creates a permanent, watertight barrier, preventing water from seeping into the robot's electronics.

• Length: Cables are typically between 10 to 15 meters (30 to 50 feet) long to allow the robot to clean large pools from a single power outlet location.

3. （Comparison with Other Cables）

• vs. Standard Power Cords: Standard cords are stiff, sink, and are not resistant to pool chemicals or UV. They would quickly fail and tangle in this application.

• vs. Underwater ROV Cables: While both are used underwater, ROV cables are designed for deep-water pressure and much greater mechanical strength. Pool cleaner cables prioritize extreme flexibility, tangle-resistance, and chemical/UV resistance at a low cost.

4. （Common Issues）

• Tangling: Poor quality cables can develop memory and twist.

• Cracking: Low-quality jacket materials can crack when exposed to UV and chemicals, exposing the internal wires.

• Water Ingress: Failure of the molded seal can lead to water entering the robot, causing permanent damage.