The invention discloses an ultrahigh pressure
cross linked polyethylene insulated flexible direct-current
optical fiber composite
submarine cable and relates to a direct-current cable. The ultrahigh pressure
cross linked polyethylene insulated flexible direct-current
optical fiber composite
submarine cable is particularly used in large-power remote
submarine power transmission in a flexible direct-current
power consumption system of the vacuum
control switch (VCS) current-switching technology and grid-tied connection among
new energy alternating current systems of aperiodic operating
wind power generation,
tidal power generation and the like. The ultrahigh pressure
cross linked polyethylene insulated flexible direct-current
optical fiber composite
submarine cable comprises direct-current cables, an optical
fiber unit, a grounding feeder, filling strips, a main armor layer and an outer protective layer, wherein the two direct-current cables are respectively arranged on the left side and the right side, the optical
fiber unit is arranged above the middle of the two direct-current cables, the grounding feeder is arranged under the middle portion of the two direct-current cables, and the cable is formed in a flat-supporting non-stranding mode; cable forming gaps are filled through arc-shaped filling strips; the direct-current cables, the optical
fiber unit and the grounding feeder form the cable and then are armored through the main armor layer, the outer protectively layer is arranged on the surface of the main armor layer, anti-
corrosion insulating glue is coated on each layer of
polypropylene rope, and high-strength self-
adhesive tapes are twisted outside the anti-
corrosion insulating glue.