Published: 2025-06-03 15:17:40
When selecting tethered drone cables, several very core technical requirements need to be considered, because this type of cable must be:
Lightweight (the lighter, the better, to reduce flight load)
High strength (tensile and torsional resistance to prevent breaking in the air)
Voltage resistance (stable power supply, usually high-voltage DC or AC)
Communication stability (when power and signals are transmitted simultaneously, requires anti-interference)
Wear-resistant and weather-resistant (long-term exposure to outdoor wind and sun)
The specific selection approach can be summarized as:
1. Distinguish cable types based on usage
Pure power cable (high-power supply, no signal transmission)
Power-signal hybrid cable (supplies power while transmitting data)
Optoelectronic hybrid cable (power and fiber optic communication, suitable for ultra-long-distance low-loss transmission)
2. Key technical parameters
Project
Requirement
Description
Conductor material
Alloy wire or silver-plated copper or tin-plated copper
Lightweight, anti-oxidation, excellent conductivity
Insulating materials
Fluoroplastic (FEP), ETFE, or high-strength PE
High temperature resistance and wear resistance, lightweight
Sheath materials
Aerospace fiber woven mesh
Lightweight, tensile
Tensile strength
Prevent breaking during flight
Bending radius
Must support winding and coiling
Weight
The lighter, the better
Reduce flight load
Rated voltage
Depending on the system, common voltages are 24VDC / 48VDC / 400VDC / 800VDC.
Some high-end tethered drones use high-voltage DC power supply.
Torsion resistance
Requirements are high.
Support cables that do not easily twist or break when the drone rotates.
3. Typical structural example
For example, the common tethered drone cable structure can be:
[Aerospace fiber braided sheath] → [Wrapping layer (polyester tape, fluoroplastic)] → [Insulation layer (FEP/PE)] → [Fine-stranded conductor (alloy wire)]
🔵 Summary
Lightweight, strong, wear-resistant, torsion-resistant, power and communication integrated. Materials should be as high-end and lightweight as possible, such as alloy wire, fluoroplastic, and aerospace fiber braided sheath.
Do you want to tell me your specific parameters? For example:
Current and voltage requirements?
Does it need power supply and image/data transmission?
I can help you create a complete selection plan, and even draw a schematic structural diagram! If you need it, just let me know 🚀