Fig. 1. Submarine optical fiber composite power cable^[6]

Fig. 2. Cross-sectional view of cable

Fig. 3. Submarine cable model under tensile load^[8]

Fig. 4. Fitting profile of strain for submarine cable to optical unit^[11]

Fig. 5. Fitting curves of copper conductor stress and optical unite strain under different tensile load^[8]

Fig. 6. Fitting profile of strain for copper conductor to optical unite^[12]

Fig. 7. Stress-time curves at different positions of submarine cable^[13]

Fig. 8. Submarine cable model under bending load

Fig. 9. Curves of copper conductor stress at different positions in different loading duration^[16]

Fig. 10. Stress-time curves of copper conductor under different bending radius^[17]

Fig. 11. Strain- angle curve of optical unite^[18]

Fig. 12. Fitting curves of copper conductor/lead alloy stress and optical unite strain^[18]

Fig. 13. Copper conductor stress at different positions^[19]

Fig. 14. Submarine cable model under torsion load^[9]

Fig. 15. Stress/strain-time curves of copper conductor in different torsion speed^[20]

Fig. 16. Strain-time curves of optical unite in different torsion speed^[21]

Fig. 17. Fitting curves of copper conductor stress and optical unite strain^[21]

Fig. 18. Normalized optical strain/armored layer stress/armored layer plastic strain-time profile fitting results^[11]

Fig. 19. Strain-time curves of optical unite under different impact angles^[8]

Fig. 20. Normalized copper conductor stress/lead alloy stress/armored layer stress/optical strain-time profile fitting results^[8]

Fig. 21. Stress-time curve of armored layer^[29]

Fig. 22. Copper conductor plastic strain/optical unite strain-time curves^[31]

Fig. 23. Displacement/acceleration-time fitting curve of optical unite^[33]

Fig. 24. Vibration characteristics of optical unit in single-core submarine cable^[34]