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Will a alarm still work if power lines and telephone lines are knocked down?
Wiki User
∙ 13y ago
Fire alarms and burglar alarms have a secondary power source such as a battery or generator, so they will continue to report alarms for a time after loss of utility power.
They also usually have two separate means of reporting the alarm. Sometimes this is accomplished with two separate phone lines. In this case if both lines are down, the panel will not be able to report an alarm. More and more alarm panels, however, are using radio communication such as cellular, as the second or backup communications path. These panels would still be able to report the alarm if telehone lines are down.
Wiki User
∙ 13y ago
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Why do blizzard's lose power?
Blizzards lose power because some power lines freeze and other get knocked over with harsh winds.
Why do you have internet and telephones when the power lines are down?
Power lines and phone lines though using the same utility poles are two different sets of wires. Telephone wires carry their own power, separate from the power lines and are insulted while power lines are not. If the telephone wires are unbroken but laying on the ground the wires will not short to ground while an unbroken uninsulated power line will short to ground disrupting service.
Are VOIP telephone systems compatible with alarm systems?
Yes they are because the alarm system would normally use the telephone line for communication to the monitoring station, if you have discontinued your telephone service for VOIP service you must keep in mind a couple of things, backup power (UPS) for your internet service and your VOIP unit without backup power your VOIP service is dead during power outages and therefore no communications. Your alarm company will have to come and check and test your alarm system over the VOIP network to ensure you have service when you need it.
How are landline telephone companies able to use other companies poles and lines?
There is a rental fee for other lines. This is similar for power companies also. Not all lines are owned by local companies.
What are some causes of a power outage?
There are many reasons why one's power may go out. The main cause of these outages, are mostly seen during heavy rain storms when the electrical lines get overworked. However it can also go out when the lines are knocked down, or when one's power company may be doing maintenance on that section of the power grid.
Where can you get the song 'Hanging by the Telephone' by Cat Power?
Cat Power's recording of "Hanging on the Telephone" is not available outside of the Cingular Wireless television commercial in which it features. Originally recorded by the Nerves in 1976, "Hanging on the Telephone" is most often associated with Blondie's 1978 recording from their Parallel Lines LP.
What are the applications of power supply failure alarm?
uses of power failure alarm
How many SIC 1629 companies specialize in power projects?
With the inclusion of power and telephone lines, roughly 500 establishments specialized to some degree in this sector of the industry.
What is power failure alarm?
It is an alarm to alert someone or something that the power is no longer working.
Which household equipment operate on DC supply?
None normally. You may find battery backup on things like alarm systems. Your telephone, if it isn't one with a local power supply, is powered by the telephone company and that uses DC supply.
Does a telephone pole carry electricity to a Computer?
Yes and no. First, a history on poles. The reason we call them telephone poles is they were first used and paralleled train tracks and were called telegraph poles. This was pre 1900. Since then, electricity or power lines were strung up on these same poles and power poles, which are owned by the power company. If a pole has both power and telephone on them, they are called joint-use poles and utility companies that own the poles can charge other utilities to use them for a yearly fee per pole. Nowadays, most poles are joint use and carry power, telephone and cable television on them and unless your power is fed by underground or buried power lines, your computer gets the power it needs from these type poles. The exception to this is a battery powered laptop, but these still get recharged by the same source.
How does AT and T generate power for its telephone lines?
Just like any other piece of electrical equipment - the phone company gets its power from the national grid. Additionally, they have emergency generators to maintain power if the mains fails.
