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6.2.2 Electrical
6.2.2.1 Power
Check the operating voltage for your sub-sea installation:
❐
The standard sub-sea PSU operates from a nominal 110V AC electrical supply. See
8.1.3 "Sub-sea Power Supply Pod" on page 8-3
Check the power supply rating for your PSU, which should be marked on the PSU label.
For Dualtrack installations, both sub-sea installations MUST operate from the
same electrical supply. If necessary, obtain a new 440 PSU or 350 / 350 Power-
track SEP so that you may establish this very important condition. Refer to Appen-
dix B.1 for a description of Dualtrack.
6.2.2.2 Cables, Connectors and Coils
Cables and connectors
❐
Check that you have installed the cables correctly. See
page 4-1
for instructions to make connections within the sub-sea installation.
❐
Check the coil and cable continuity and insulation resistance as instructed in
"Coil Insulation Test" on page
❐
Inspect the cables and connectors visually for signs of damage, contamination or degradation.
Make any repairs necessary before you use the cables. If necessary, fit new cables.
❐
Secure all cables to the ROV frame so that they cannot move or snag during survey opera-
tions. Do not apply sharp bends to the cables or expose them to other mechanical stresses.
❐
Follow the advice in
connectors.
❐
Connect the coils to their correct channels on the SEP.
❐
Fit proper blanking plugs to any SEP port that will not be used during system deployment.
❐
Hand tighten the connectors when you reassemble them. Do not use additional leverage or
apply excessive force to the connectors.
6.3 Survey Operations
This sub-section is of special interest to personnel who will operate the 440 System during a survey. It
explains how to use the System correctly.
Before you start a survey that uses the 440 System:
❐
Check that you have established the correct communication method in the SEP and in the
SDC. See
section 4.2.2 "Communication Link SEP to SDC" on page
DPN 402196 Issue 4.1
NOTE
6-13.
section 4.1.2 "Care of Sub-sea Connectors" on page 4-3
© Teledyne TSS
6 – Operating Procedure
for full details of the PSU power requirements.
section 4.1 "Sub-sea Components" on
4-8.
section
section 6.3.2.1
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