What does line voltage mean?

Asked By: Sona Gluzsky | Last Updated: 3rd April, 2020
Category: home and garden home entertaining
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Definition of line voltage. : the voltage of a power transmission circuit or distribution circuit up to the point of transformation or utilization.

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Correspondingly, what is line voltage?

Line voltage is the standard voltage—120 volts—that's found in outlets and junction boxes in the United States and Canada. Low-voltage lighting typically uses 12 or 24 volts and requires a transformer to lower the line voltage from 120 volts to avoid immediately burning out the low-voltage bulb.

Secondly, what is line voltage and line current? Line voltage is the voltage measured between any two lines in a three-phase circuit. Phase voltage is the voltage measured across a single component in a three-phase source or load. Line current is the current through any one line between a three-phase source and load.

Secondly, what is line voltage vs low voltage?

It is standard in lighting, while “low voltage (12v or 24v) lighting” is used less commonly. Line voltage lighting systems typically use 120v or 277v to supply power to lighting fixtures. Line voltage lighting systems do not require transformers to power lighting fixtures in many different applications.

How do you calculate line voltage?

The line to line voltage is the voltage or potential between two wires. For two voltage values that share a common wire, you can compare them as vac = vab - vcb or, adding the two voltages as vac = vab + vbc. The notation for these differences in voltage can let you calculate phase to earth voltage.

35 Related Question Answers Found

What is high line voltage?

What is a High Voltage Line? High voltage transmission lines deliver electricity over long distances. The high voltage is required to reduce the amount of energy lost during the distance. Unlike other energy sources such as natural gas, electricity can't be stored when it is not used.

What is the voltage of line level audio?

A line input level electrical signal typically has a voltage ranging from 0,3 to 2 Volts, while a microphone level signal is more often in the range from 5 to 50 mV (millivolts).

What is meant voltage?

Voltage, also called electromotive force, is a quantitative expression of the potential difference in charge between two points in an electrical field. Voltage can be direct or alternating. A direct voltage maintains the same polarity at all times.

What is line current?

Line current is current which is flowing through any line is called line current. Line voltage is potential difference between two line is called line voltage . Phase current is current flow through any coil or phase impedance.

Is 120 a low voltage?


Industry standard actually is that anything below 600V is low voltage. 600V to 69 000V is medium voltage, 69kV (thousands of volts) to 230kV is high voltage and from 230kV up to 1100kV is ultra high voltage. 120V is considered low voltage, 230V is also low.

What is line voltage in star connection?

In star connection of 3 phase symmeteical connection, the line voltage (voltage between two phases) is 1.732 times that of the phase voltage. It means if phase voltage is 231 volts, then line voltage is 400 volts.

What is the voltage between line and neutral?

The conductors between a voltage source and a load are called lines, and the voltage between any two lines is called line voltage. The voltage measured between any line and neutral is called phase voltage. For example, for a 208/120 volt service, the line voltage is 208 Volts, and the phase voltage is 120 Volts.

Is 240 volts low voltage?

Nominal voltage - 120 volts & 240 volts are the standards to designate a voltage class for residential buildings. All other voltages are high or low voltage ratings of light bulbs, appliances, electronics etc.

Is 120v considered High Voltage?

120V is the voltage most commonly involved in electrical fatalities in the home, in part because it's used to feed equipment that people are so frequently in contact with — often when they're wet. Generally, yes, 120 VAC or VDC is considered low voltage with regards to safety.

What voltage is low voltage?


Low voltage is defined as 50 volts (V) or less.

Is 24v considered low voltage?

24V is definitely low voltage.

Is LED low voltage?

LEDs, or light emitting diodes, are low voltage, direct-current lights that require special power supplies to optimize their light output and life span. Standard low-voltage transformers don't meet the power supply needs of LEDs unless they are modified with additional rectifiers and control electronics.

Can I use a line voltage thermostat for low voltage?

NOTE: Before you consider which thermostat you need, make sure you know what type of circuit you have. A low voltage thermostat will not work with line voltage wiring.

How many volts is a ceiling light?

120 volts is the standard voltage supply for American homes.
Nearly all indoor residential light fixtures and appliances in the U.S. run on line voltage. A 120-volt light bulb can typically be screwed into an indoor light fixture and operate correctly without further complication.

What is line voltage Tracklighting?


Line voltage systems are the most common type of track lighting. They draw directly from a 120-volt feed. Low voltage systems draw their power from a transformer, and this transformer must be mounted near the track system.

Can you get electrocuted from low voltage lighting?

Safety! 12 volt lighting is completely safe for man or beast (pet). No one can be electrocuted, pets can't be shocked, and children can't be harmed by low voltage lighting that is below 15 volts. With 120 or even 240 volt lighting, there is indeed a safety issue.

Is 480v line to line?

A pure 480 volt delta has no neutral and therefore no line to neutral voltage. If there is also a neutral, it will be described as 480Y/277. This means (surprisingly) 480 volt delta/277 volt wye. The line to neutral voltage is 277 and the line-to-line voltage is 480.