Safe conduct when lightning strikes SINGAPORE: It looks like any other four—man tent, but this one will keep you safe when lightning strikes.
And the secret? A special material called EquiVolt, which conducts electrical currents during a lightning strike, keeping those beneath it safe.
The lightweight material the first of its kind can be used to make raincoats, tents and groundsheets.
"As a consultant, I hear from industry people asking me whether there can be a product like this," said Professor Liew Ah Choy, who came up with the concept for the fabric, during its launch at the Safety and Security Asia exhibition on Wednesday.
"For example, at the airport, the staff have to go onto the runway, rain or shine. This will come in useful."
Most fatalities and injuries are not caused by lightning striking a person directly, but by it hitting the ground and generating voltage differences, said Prof Liew from National University of Singapore’s Electrical and Computer Engineering Department.
"A person standing in the vicinity would have differences between his or her legs, which would then result in the person getting electrocuted," he explained.
The solution, he said, was not an insulating material, but rather a conducting material that equalised the voltage differences, leaving the person standing on the fabric or in a tent unharmed.
Also at the three—day exhibition, were security systems against intruders, including one that will let users view the comings and goings at their homes or offices through a digital video surveillance system, with just a few taps on the buttons of a mobile phone.
That’s what security systems provider CHH promises to deliver with its newly—developed remote viewing system, which allows monitoring via a mobile phone, rather than a computer, laptop or personal digital assistant.
"The problem with such systems now is that when people get an alert from their security company about an intrusion, they have to find a computer to check their surveillance cameras and that takes time," said CHH deputy director Tan Boon Hoe.
With footage being transmitted through broadband into a mobile phone, one can now check immediately whether the intrusion is a false alarm, before notifying the police. |