Sea Tel 4009-9 BROADBAND-AT-SEA, Руководство по установке

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Site Survey 4009-9 Installation Manual
2-7
Power cables shall comply with the provisions of IEC 60092-350 and -351 as practical. Power cables may
be routed through the same conduit as the signal cable from the junction box to the base of the ADE.
Power cables shall pass through separate radome penetrations from the signal cable.
The power cable shall be continuous from the UPS (or 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.
2.8.3. Air Conditioner Power Cable
If your system includes a marine air conditioner (available with the 81 inch radome ONLY), run an AC
power cable to it from a breaker, preferably from a different phase of the electrical system than supplies
power to the ADE & BDE. Be EXTREMELY cautious of length of the run for voltage loss and gauge of the
wires for the current that is expected to be drawn.
Power cable shall comply with the provisions of IEC 60092-350 and -351 in so far as practical. Power
cables may be routed through the same conduit as the signal cable from the junction box to the base of
the ADE. Power cables shall pass through separate radome penetrations from the signal cable.
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.