Waterproof cables mainly achieve waterproof function through special structural design. The following are the core structural layers and characteristics:

1、 Conductor layer

• ‌Multi strand fine copper wire twisted structureEnhance flexibility and adapt to the bending needs of underwater equipment
  

• ‌Galvanized copper wire conductorEnhance anti-corrosion ability and extend underwater service life
  

2、 Insulation layer

• ‌High density waterproof rubber/silicone rubberDirectly wrap the conductor to isolate moisture infiltration
  

• ‌Cross linked polyethylene (XLPE)It needs to be used in conjunction with a water blocking structure, otherwise it is prone to water tree breakdown
  

3、 Waterproof core layer

1. ‌Vertical waterproof isolation layerAluminum plastic composite tape or waterproof tape wrapped to block longitudinal diffusion of water vapor
   

2. ‌Metal sheath (armor)‌：

• ‌Steel wire weavingProvide tensile strength, suitable for scenarios such as deep-sea robots
  

• ‌Steel belt armorEnhance compressive strength and defend against mechanical damage
  

• Note: The armor layer also assists in waterproofing

4、 Outer sheath protection

• ‌Corrosion resistant materialPUR (polyurethane) or chloroprene rubber sheath, resistant to chemical corrosion and ultraviolet radiation
  

• ‌Multi layer sealing designWaterproof sealant is used at the joint to ensure the waterproofness of the terminal

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