Submarine cable PP yarn is mainly made of polypropylene resin as the main raw material. Through professional production equipment, the yarn has a special mesh structure, which is an excellent and important structural material for submarine cables. Its corrosion resistance, mechanical strength, environmental performance, flame retardancy and wear resistance make it an indispensable part of submarine cables.

1、Main features

Corrosion resistance: PP yarn has excellent corrosion resistance, which can resist long-term erosion of seawater and protect submarine cables from the effects of seawater corrosion.

Mechanical strength: Although PP yarn itself may not be the most mechanically strong part of submarine cables, it works together with other structural layers (such as steel wire armor) to enhance the overall mechanical strength of submarine cables and prevent external damage.

Environmental performance: PP yarn, as an environmentally friendly material, has a relatively small impact on the environment during its production and use, which meets the requirements of sustainable development.

Flame retardant and wear-resistant: Some PP yarns also have flame retardant and wear-resistant properties, which are particularly important in the complex environment of submarine cables, and can further improve the safety and service life of cables.

2、Main function

Protecting cables: As one of the outermost layers of submarine cables, PP yarn and materials such as asphalt together form a protective layer, effectively resisting the corrosion of seawater and mechanical damage from the outside world.

Auxiliary structure: The PP yarn, together with other structural layers such as steel wire armor, lead sheath, etc., forms the complete structural system of the submarine cable, ensuring the stability and reliability of the cable.

Improving insulation life: Through the synergistic effect with other insulation layers and protective layers, PP yarn helps to evenly distribute the electric field, thereby improving the insulation life of submarine cables.

3、Application examples

In practical applications, PP yarns for submarine cables are widely used in various submarine cable projects. For example, when laying submarine cables in deep sea areas, PP yarns are buried as part of the cable in the seabed soil, which can withstand the erosion of seawater and the test of the seabed environment for a long time.

4、Precautions

When selecting and using PP yarns for submarine cables, attention should be paid to their material, specifications, performance, and other requirements to ensure that they can meet the actual needs of submarine cables. At the same time, corresponding measures need to be taken during the laying, installation, and maintenance of cables to protect PP yarns and other structural layers from damage.