In April 2020, HYJQ41-F 1*1600+2*12B1 cross-linked polyethylene insulated optical fiber composite submarine cable with rated voltage of 64/110KV has obtained the national type test report and the international KEMA test report. At present, the photoelectric composite submarine cable with the same specification and rated voltage of 127/220KV is making soft joints in the company and will be sent to the National Wire and Cable Quality Supervision and Inspection Center for testing.