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09.09.2019, 15:29

Protecting the World's Longest Sea-crossing

Health, Safety, Security & Environment, Transport, APAC, Supplier News
Kentec Sigma A-XT gas extinguishing panels are at the heart of a new fire safety solution protecting users of the magnificent Hong Kong-Zhuhai-Macau Bridge (HZMB).

 

The HZMB's 55 Kilometre bridge-tunnel route includes three cable-stayed bridges, an undersea tunnel, and four artificial islands. It spans the Lingding and Jiuzhou channels, connecting Hong Kong, Macau and Zhuhai, three major cities on the Pearl River Delta. The HZMB includes a 41.6km bridge from Zhuhai-Macau Port to Hong Kong’s port, making it the largest sea crossing in the world.

 

Shanghai Construction China installed Kentec’s extinguishing system, working with solution providers Guangzhou Wanzhen Information Technology Co. Ltd on behalf of the Macau Government. The team specified a suite of Sigma A-XT extinguishing panels, as well as supporting status units, and Abort and Disablement Switches. The panels are based in the vast entry and exit port buildings.

 

A spokesperson for Guangzhou Wanzhen Information Technology Co. Ltd says the panels and accessories were chosen because of their renowned reliability:

"We work with Kentec extensively and know the systems they manufacture perform to an excellent standard. For this reason, we are happy to recommend Kentec products to our customers."

 

The Sigma A-XT releasing panel provides three initiation circuits as standard, meaning the release can be configured to activate from any combination of detection zone inputs to allow specific, controlled activations.

 

Kevin Swann, Kentec managing director, says:

"The system to be extensively modified to suit complex and large installations, such as this prestigious project,” he explains. “And with all the electronics mounted on a single, easily removable steel plate, the panels are both robust and easy to install."

 

Another feature is the large LED display, simplifying configuration and displaying the time remaining until release for added user safety. The countdown timer can be duplicated on up to seven status units per panel, to provide localised indication of system status. Any number of abort and disablement switches can connect to the abort terminal of the releasing panel.

 

HZMB was constructed at a cost of 127 billion yuan (£14.9 billion) and was designed with a life cycle of 120 years. The structure was completed in February 2018 and opened to the public on 24 October 2018 at a ceremony attended by Xi Jinping, General Secretary of the Communist Party of China.

 

The Sigma A-XT is approved to UL864 and is also FM-listed. EN approved versions are also available from the manufacturer.

 

 

 

 

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