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+24 volts is not normally used for telecom equipment. -48 volts is the usual value. 48 was chosen as a compromise between safety and voltage/power efficiency. Minus was chosen over plus to manage corrosion effects of cabling in underground installations.
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∙ 12y ago
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Which is better for trailer operation two six volt batteries in series or two 12 volt in parallel?
I would opt for the two twelve volt batteries in parallel. This configuration will give you the voltage that you need for the system to properly operate plus the endurance time that you can draw from the batteries will be doubled. The amp/hours capacity of batteries when in parallel are additive.
How Convert 200 volt to 230 volt?
If a precision voltage is needed from 200 to 230 an auto transformer could be used. If the load is a 230 volt motor to be operated on 200 then add 15% to the nameplate full load amperage for the calculation for overload protection.
What is 4160 Volt electrical wire insulation rated for?
You can use an insulation rating 5000 volt to run 4160 volt supply.
Will 120 volt equipment work on a 110 volt transformer?
Yes.
Is the Mercedes Benz 1823 atego 12 volt or 24 volt?
pusa
What is the equipments of standing long jump?
pole volt
Can a 440 volt capacitor be used for a 230 volt application?
No. The capacitor will short out and possibly explode. On the other hand, the 440 Volt Cap can be used in a 220 Volt circuit.
What metric unit of measurement is used on a volt meter?
The volt.
What unit is used to measure volt?
A volt is itself a unit.
Can a 9 volt charger be used to charge a 7.2 volt battery?
no
Can a 12 volt charger be used to charge a 8 volt battery?
No
Can you plug a 120 volt appliance to 110 volt outlet?
Yes, normally, assuming it's 60 cycle (hertz) AC. In the USA, 110 volts as such is no longer used, it's really 120 plus or minus about 5 volts everywhere.
What is the minimum volt rating of wire used in a 3 phase 4160 volt phase to phase system?
5000 volt
Can a 12 volt battery charger be used to charge a 24 volt battery?
no it can't
How is -48V possible in telecomm equipment?
Voltage is dependent on a reference. If I have a 12 volt battery, and ground the - side, it is 12 volts to ground. If I instead ground the + side, it is -12 volts to ground. -48 volt telecom equipment is simply referenced to ground "upside down" or backwards, giving it a negative sign.
How many volt DC systems are used in a car?
Most cars use a 12 volt system. Most cars built before about 1956 used a 6 volt system. Some, very few, use a 24 volt system.
Can a 220 volt side lamp be used on 120 volt?
Yes. But not the other way. 120 volt one, cannot withstand 220volt.
