55
stage, 18-in water pumps. Each pump
is driven by a 550kW e-motor and can
supply between 550 m3 at 15.5 bar and
1050 m3 at 13 bar depending on the
nozzle configuration.
As the first in the industry to use this
technique, Van Oord has equipped its
jetting tools with a unique combination
of sensors that can precisely monitor
the depth of the cable, control the load
applied on the product andconfirm the
depth of burial directly during the
burial process.
This enhanced cable monitoring
system enables a greater control and
higher burial speeds.
Survey equipment includes seven
cameras, eight lights and three imaging
sonars, as well as obstacle avoidance
and a protiling sonar. It also has four
bea
cons and a cable tracker.
The Jet-lt spread includes the Launch
And Recovery System (LARS)
composed of an A-frame and an
umbilical winch, its control cabin, the
power cabin with the frequency drives,
a dedicated data cabin with the survey
equipment and IT environment.
The whole spread is permanently
installed and connected on a
dedicated 18 x18m plattorm. This
strong integration of all the
components allows mobilisation on any
vessel in a single lift, making the
preparation more efficient, reducing
the mobilisation time and cost. The 30t
LARS enables launch and recovery up
to sea state 5.