- In the course of about one hour, we spent 11 or 12 times to check alarm systems are knocked out by lightning lit Lars Anton ice at the 110 call center to Asker and Bærum firefighters Monday night.
ALSO READ: Lightning struck knockout of residential alarms
Fire Chief Anne Hjort said Tuesday afternoon that the correct number is five, of which one plant owned by a private alarm company.
- In addition, there were some cases where the situation was clarified by telephone, said Deer.
GSM smoothly
She acknowledges, however, that thunderstorms with heavy lightning activity is a challenge for alarm systems of the older type.
- It is the older alarm systems that have problems. These plants send out analog signals in terms of tone signals. The new plants send out digital signals via a GSM transmitter and is not affected by lightning and thunder to the same extent, says Deer.
Asker and Bærum fire department is now responsible for around 3,500 fire and burglar alarms. Around 2,000 of these are of the older type that transmits analog signals.
- This is about old versus new technology. Oh would replace all the old alarm transmitters would be costly for customers. Our installers deliver no alarms with analog signals, and eventually they will be replaced entirely new, says fire chief Anne Hjort. Thus, it appears that customers with old alarm transmitters have to live with the problem.
False alarm, not quite dead
She emphasizes that lightning does not paralyze the alarms altogether, but getting them to send out “false alarm”. This means that the fire department is going to have to spend time to clarify the situation.
Verisure, the country’s largest provider of private fire and burglar alarms, had no breakdowns Monday night. The company alarms are mainly based on broadband and GSM, according to communications director Cecilie Knudsen.
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