In marine engineering and ship electrical systems, waterproof ship cables, as key infrastructure, need to withstand seawater corrosion, mechanical vibration, temperature fluctuations, etcextremeenvironment withCKEV82/SATaking marine cables as an example, their structural design integrates high protection, environmental resistance, and signal transmission stability, becoming the core components of ship power, communication, and navigation systems.

1、 Multi layer composite protective structure: adaptable to harsh marine environments

CKEV82/SAThe cable adopts "ethylene propylene rubber insulation+Chloroprene rubber inner sheath+Tin plated copper wire braided armor+The four layer protective system of flame-retardant polyvinyl chloride outer sheath forms multiple barriers:

Ethylene propylene rubber insulation layer: It has excellent water resistance, ozone resistance, and chemical corrosion resistance, and can be used in-20℃ to+85Long term use within the temperature range of ℃ effectively blocks the risk of conductivity caused by seawater infiltration.

Chloroprene rubber inner sheath: as the second line of waterproof defense, its tensile strength reaches15MPa, elongation at break ≥300%It can resist the propagation of microcracks caused by ship vibration.

Tin plated copper wire braided armor: not only provides mechanical protection and reduces cable wear during installation, but also the tin plating layer can prevent seawater corrosion and extend service life.

Flame retardant polyvinyl chloride outer sheath: oxygen index≥32%, throughIEC 60332Single vertical combustion test can limit the spread of fire and ensure the safety of ships in fire scenarios.

2、 Electrical performance optimization: ensuring signal and power transmission stability

Low transmission impedance design: Three core symmetrical structure combined with tin plated copper conductor (conductivity)≥97% IACS）Make the cable150/250VTransmission impedance under voltage ≤250Ω/kmSignificantly reduce signal attenuation. For example, on a shipGPSIn the navigation system, this cable ensures that the transmission error of positioning data is less than0.1rice/In seconds.

Anti electromagnetic interference capability: Tin plated copper wire braided armor and ethylene propylene rubber insulation layer form a dual shielding, effectively suppressing electromagnetic noise generated by devices such as frequency converters and radars. Actual testing shows that500kHzWithin the frequency band, the shielding effectiveness reaches80dBThe above.

Voltage surge resistance: The factory test voltage reaches5kVIt can withstand common transient overvoltages in ship power systems and avoid the risk of insulation breakdown.

3、 Typical application scenario: Covering the full system requirements of ships

Power transmission system: used to connect generators, motors, and distribution boards, supporting high load operation of the ship's main propulsion system. For example, in liquefied natural gas transport ships, the cable can stably transmit6.6kVElectricity ensures power supply in low-temperature environments.

Communication and navigation system: connecting radarGPSWireless and other equipment ensure real-time and accurate signal transmission. Its low attenuation characteristics enable ships to maintain high-quality communication with land base stations even during long-distance voyages.

Hydraulic control system: installed near hydraulic pipelines, resistant to hydraulic oil erosion, ensuring precise control of valves, pumps, and other equipment.

Lighting and emergency system: Provide reliable lighting in damp areas such as decks and engine rooms, while supporting emergency power switching to meet the requirementsSOLASThe requirements of the convention for ship safety.

4、 Technical standards and certifications: comply with international standards

CKEV82/SAStrictly implement the cableIEC 60092Series of ship electrical facility standards, and passedCCS(China Classification Society)DNVCertified by organizations such as Det Norske Veritas. Its bending radius (fixed laying)8Adaptability to temperature with cable outer diameter (x)（-20℃ to+85℃) all meet the requirementsIMOThe International Maritime Organization has strict requirements for ship cables.

Conclusion

CKEV82/SAWaterproof marine cables achieve high reliability transmission in marine engineering through multi-layer composite protection, low impedance design, and environmentally resistant materials. Its application scenarios cover the entire system of ship power, communication, navigation, and control, providing a solid guarantee for the intelligent and safe operation of modern ships. As the global shipbuilding industry transitions towards high-tech ships, the technological iteration and market demand for such cables will continue to grow.