Sea Tel 6012-12w, Installation Manual

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Site Survey 6012-12W Installation Manual
The power cable shall be continuous from the closest circuit breaker to the ADE connections within
the radome. The power circuits shall be arranged so that ‘active,’ ‘common’ and ‘neutral’ (ground)
legs are all made or broken simultaneously. All circuit legs shall be carried in the same cable jacket.
2.8.4. ACU Power Cable/Outlet
The AC power for the ACU and the ADE is not required to be from a UPS (same one that
supplies power to the ADE), but it is recommended.
Power cable shall comply with the provisions of IEC 60092-350 and -351 in so far as practicable.
2.8.5. Gyro Compass Cable
Use good quality shielded cables (twisted pairs, individually foil wrapped, outer foil with braid overall is
best). You only need 2-wire for NMEA signal, 4-wire for Step-By-Step and 5-wire for Synchro … always
use shielded cable. Be cautious of length and gauge of the run for voltage loss issues.
2.9. Grounding
All metal parts of the ADE shall be grounded to bare metal that is common to the hull of the ship. This is most
commonly accomplished by attaching a ground wire/cable from the upper base plate ground point to a
ground stud on the mounting pedestal/stanchion/mast near the base of the radome. Preservation of the bare
metal contact point should be done to prevent loss of ground due to rust and/or corrosion.
Grounding by exposing bare metal under all mounting bolts of the under-side of the radome base prior to
final tightening does NOT provide adequate grounding of the ADE.
Grounding should be ensured throughout the entire mounting to the hull. While it is presumed the deckhouse
is permanently bonded and grounded to the hull, in cases where the deckhouse and hull are of different
materials a check of an independent ground bonding strap should be made. Masts should be confirmed to be
grounded to the deckhouse or hull.
2-7
EAR Controlled - ECCN EAR99