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: kronehlp@krone.com.au 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: kronehlp@krone.com.au 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 . 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’. the Norwegian Dawn accommodates more than 2,000 passengers and 1,300 crew. Closed circuit television cameras were installed on- board the Norwegian Dawn,