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There is a formula based on wire type, length, and current. The easiest way nowadays is to use an online calculator. Remember when using that calculator that both wires in the circuit count (hot & neutral), so don't divide the length by 2. Just enter the length of your run.
To determine the best gauge of wire to use for a specific application, consider factors such as the amount of current the wire needs to carry, the voltage involved, the length of the wire run, and any environmental conditions that may impact the wire. Use a wire gauge chart to find the appropriate wire gauge that can handle the current load without overheating.
Wire sizes are calculated on the amperage that the load draws. For a certain load amps you will need a specific wire size and a breaker to match the amperage flowing through that wire. A few common wire sizes and amperages you would find in your house #14 - 15 amps, #12 - 20 amps, #10 - 30 amps and #8 - 40 amps. These are published in the electrical code book.
Several different factors must always be considered when deciding the correct wire size to use:
- amperage, which is the current to be supplied, measured in amps?
- length of wire-run?
- installation situation/site conditions?
- run inside a conduit?
- exposed to the air fixed to a wall?
- extreme heat?
- damp conditions?
- underground?
To get the right answers refer to the Wiring Codes or Regulations for your locality. (Town/State.)
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
To select an appropriate wire guage you must need electric appliance wattage and divide it with volt (i.e. 1000 watt electric iron just 1000/220=4.54 amp) Do remember to divide your amp with .80 because you will never to want to put the load according to the wire capacity, by dividing .80 mean wire does has appro. 20% more capacity than the appliance. so now you have 1000/220/.80=5.68 amp. now you can easily find out the proper guage by visiting the Chart as below or any one else: -
http://www.crutchfield.com/S-C8qXuqgSdrg/learn/learningcenter/car/cable_gauge_chart.html
You are also advised to take professional's guidence as per the above given information is collected from the internet.
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How do you tell what gauge wire you have in your house?
To determine the gauge of wire in your house, look for markings on the insulation or jacket of the wire. It usually indicates the gauge size, such as 14, 12, or 10. You can also use a wire gauge measuring tool to accurately determine the wire gauge.
What gauge is use on low votage?
For low voltage wiring, typically smaller gauge wire is used, such as 18 or 20 gauge. The specific gauge will depend on the current requirements of the circuit and the distance the wire needs to run. It's important to consult the manufacturer's recommendations or local building codes to determine the appropriate wire gauge for your application.
What gauge wire should be used to run a 230v motor 90 ft away?
For a 230V motor running 90ft away, it is recommended to use at least 12-gauge wire to minimize voltage drop and ensure efficient operation. However, it is always best to consult the motor's specifications and a qualified electrician to determine the most appropriate wire gauge for your specific setup.
Can you use 10 gauge wire to connect a 2 15 amp outlets to a 30 amp breaker?
No, it is not safe to use 10 gauge wire with a 30 amp breaker as the wire is not rated for that high of a current. It is important to use the correct wire gauge that matches the breaker amperage to prevent overheating and potential fire hazards. For a 30 amp breaker, you should use at least 10 gauge wire.
What size wire and breaker for a 7.5 hp motor?
For a 7.5 hp motor operating at 240V, you would typically use a 14-gauge wire and a 40 amp breaker. However, it is best to consult the motor's specifications and the National Electrical Code to determine the exact wire size and breaker needed for your specific setup.
What is the use of wire gauge?
Wire gauge is used to determine the size wire needed to carry the correct amount of current for the job. It must be sized appropriately for the current in the circuit you are building.
How many gauge is required of copper wire in multiple generator science project?
34 gauge copper wire will work but to use the 35 gauge copper wire is the best choice
What is the best gauge copper wire to use for a radio antenna?
use a stronger wire for longer antennas...the gauge may not be as important as the strength if you string it outside.
A method to work out the thickness of a wire?
You can use a micrometer to measure the diameter of the wire. You can also consult the wire's datasheet or product specifications for information on its thickness. Another option is to use a wire gauge tool to determine the wire's thickness based on its gauge number.
How do you tell what gauge wire you have in your house?
To determine the gauge of wire in your house, look for markings on the insulation or jacket of the wire. It usually indicates the gauge size, such as 14, 12, or 10. You can also use a wire gauge measuring tool to accurately determine the wire gauge.
What gague wire should I use for my home theater cabling?
For the best performance I wold use at least a 14 gauge wire.
What gauge is use on low votage?
For low voltage wiring, typically smaller gauge wire is used, such as 18 or 20 gauge. The specific gauge will depend on the current requirements of the circuit and the distance the wire needs to run. It's important to consult the manufacturer's recommendations or local building codes to determine the appropriate wire gauge for your application.
What size wire do you use on a fridge freezer?
12 gauge wire is used for household plugins, and 14 gauge wire is used for lights. So, 12 gauge is the size to use. But since a freezer has an electric motor, it is best to not plug anything else with a motor into the same circuit.
What is a wire gauge and what is it's use?
wire gauge is used to determine the size of the wire to be installed based on the amperage draw of whatever is being hooked up on the receiving end. ie 14 gauge is for a 15 amp circuit, 12 gauge is for a 20 amp circuit, 10 gauge 30 amp etc. to get specific amp draw ratings on a particular gauge of wire look at a current National Electric code book or ugly book.
What kind of wire is best for learning wire crochet?
Wire crochet has become a very popular handicraft mostly used for making jewelry. The best kind of wire to use to learn the technique is a 22 or 24 gauge jewelry wire.
What are Wire sizes determined by?
The gauge of a write it's determined by the application. The three main factors are length, voltage and current. The American Wire Gauge (AWG) is a standardized system that has been in use since the late 1800's. There are tables that can be used to determine the gauge if you know the application. The gauges that are used for wire are not the same for the steel industry as they use several other standards.
What gauge wire should be used to run a 230v motor 90 ft away?
For a 230V motor running 90ft away, it is recommended to use at least 12-gauge wire to minimize voltage drop and ensure efficient operation. However, it is always best to consult the motor's specifications and a qualified electrician to determine the most appropriate wire gauge for your specific setup.
