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When you short two wires of 24V dc there is no sparking in telephone lines why?
Wiki User
∙ 11y ago
because it dc not ac
Wiki User
∙ 11y ago
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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.
Can tornadoes catch fire?
No. While tornadoes can cause fire through ruptured gas lines and sparking wires, they themselves are not flammable.
What media connector contains four wires and is commonly used with regular telephone lines?
RJ-11
Were there direct wires in telephone between NYC and Palm Beach in 1907?
It is unclear if there were direct wires in telephone between New York City and Palm Beach in 1907. Telephone systems had not yet been standardized, and the technology of the time was limited. It is likely that telephone calls between the two cities would have required operators to connect the call manually.
How is fire caused by earthquakes?
The movement within the ground breaks gas lines and electrical wires. The gas is ignited by sparking wires and other sources of heat. In older times earthquakes could knock over wood and coal-buring stoves, starting fires.
How telephone wires connected?
I'll take that as "How are telephone wires connected?" but it's still unclear what you want to know. Telephone wires are connected just as any other wires are connected. By screw connections, by soldering, by crimping.
What are examples of electric energy?
Lamps, Hair Dryer, Wires and Electric Current
Why do birds sit together on telephone lines?
For a start, most telephone wires are insulated and carry little or no electricity so, apart from falling off and hurting themselves, they won't get hurt on telephone wires. Really, you should have asked about why birds don't get hurt on overhead electrical wires. The answer is fairly simple really - to get electrocuted from those wires you need to complete the circuit, in this case touch the ground, for the electricity to surge through the body. Birds only sit on the wire and do not touch the ground, so they can't be electrocuted.
Why when it rains hydro wires do not short circuit?
Because the insulators that hold the cable up are designed to let the rain run off them. However there is some leakage during heavy rain which causes hissing and sometimes sparking.
Why is copper used for telephone wires?
Copper is used for telephone wires because it is the second best conductor of electricity after silver (which is a little pricey).
Why when it rains hydro pole wires do not short circuit?
Because the insulators that hold the cable up are designed to let the rain run off them. However there is some leakage during heavy rain which causes hissing and sometimes sparking.
What is the sparking wires on your engine?
The symptoms of live engine sparks being visible in an engine (or anywhere in the vehicle) is a serious safety condition. The sparking indicates a shorting location due to wiring damage or wear. Spark plugs can do this when there insulators are worn and damaged. Do not attempt to touch the wires, and if possible have the vehicle towed to a repair facility. Sparking conditions and the presence of an oil and fuel leak can create a fire or explosion hazard additionally.
