Tài liệu Case Study - Norwegian Dawn docx

CASE
study
KRONE (Australia) Holdings Pty Limited
2 Hereford Street Berkeley Vale NSW 2261
PO Box 335 Wyong NSW 2259
Phone: 02 4389 5000
Fax: 02 4388 4499
Help Desk: 1800 801 298
Email:
Web: www.krone.com.au
Jo No 6102 06/03
Norwegian Dawn, the Star of
the East Coast
The Norwegian Dawn was launched in December
2002 as the newest addition to Norwegian Cruise
Lines’ luxury fleet. The Norwegian Dawn measures
298 metres, has 15 decks and weighs more than
91,000 gross tonne.
Purpose built for Freestyle Cruising from Miami to
the Caribbean, and from New York to the Bahamas
and Florida, the Norwegian Dawn accommodates
more than 2,000 passengers and 1,300 crew.
Closed circuit television cameras were installed on-
board the Norwegian Dawn, by Empire Automation
to provide security for passengers and crew against
vandalism, illegal and anti-social behaviour and fire
safety.
Empire Automation has provided state-of-the-art
electronic security solutions for many and varied
major local and international clients throughout the
Asia Pacific region.

Empire Automation installed 780 closed circuit
television cameras (24vac) throughout the vessel,
cabled to seven locations around the ship. Each
camera had a composite cable run to it. The
composite cable consisted of a 2 core 1.5mm
power cable; one 4 core screened data cable, and
CASE
study
KRONE (Australia) Holdings Pty Limited
2 Hereford Street Berkeley Vale NSW 2261
PO Box 335 Wyong NSW 2259
Phone: 02 4389 5000
Fax: 02 4388 4499
Help Desk: 1800 801 298
Email:
Web: www.krone.com.au
Jo No 6102 06/03
one RG59 coaxial cable. The seven remote
termination locations were connected to the
surveillance monitoring room via fibre optics.
The KRONE TERMINATOR System was used for
connecting and fusing camera power supply
circuits, resulting in more than 3,000 wire
terminations.
Cable Termination
The TERMINATOR System is based on the KRONE
Insulation Displacement Connection (IDC)
technique, which requires no stripping or screwing.
Using a simple tool, wires are inserted between
contacts placed at a 45-degree angle which

simultaneously displace the insulation and notch
the conductor.
This method leaves more conductors between
contact points and provides a more reliable
connection. Screwless terminations also overcome
the potential risk of failing to tighten the screw
correctly, a common cause of terminal failure.
As space was at a premium KRONE’s TERMINATOR
System, with its modular high-density design, was
ideal. Standard, commercially available camera
power termination systems were not suitable, as
they require a lot of wall or rack space.
Evaluation
The KRONE TERMINATOR System saved time for
Empire Automation as well as producing reliable
connections.
As the installation was on a ship there were initial
concerns with the terminations holding during the
constant vibration that the ship encounters. To
date, there have been no connection problems.
Commenting on the installation, Mark White,
Empire Automation’s Technical Director said “While
KRONE’s TERMINATOR System was marginally more
expensive than standard camera power termination
systems, we believe the extra costs were absorbed
with a reduction in the time it took our technicians
to complete the terminations.”
KRONE TERMINATOR products used
1.5 Disconnect Module, white
50 volt Bridging Bars

Fuse Holder 6mm, 24 volt with blow fuse indication
Termination Tool with wire cut-off facility
DIN rail to Profil Frame Adaptor