3/4 Emt 90 Degree Bend Deduction Chart
What is 3/4 EMT?
Electrical metallic tubing (EMT) is a type of tubing used in electrical wiring installations. It's a thin-walled metal conduit that is lightweight and easy to install. 3/4 EMT is a specific size of EMT that has a diameter of 0.922 inches.
What is a 90 Degree Bend Deduction Chart?
A 90 degree bend deduction chart is a chart that provides the amount of length that needs to be added or subtracted from a conduit when it is bent at a 90 degree angle. This is necessary because when a conduit is bent, it gets shorter due to the compression of the inner wall and lengthening of the outer wall.
Why is a 90 Degree Bend Deduction Chart Important?
Using a 90 degree bend deduction chart is important because it ensures that the correct length of conduit is used for an installation. If the incorrect length is used, it can cause problems with the installation, such as improper fittings, which can lead to safety hazards.
How to Use a 90 Degree Bend Deduction Chart for 3/4 EMT?
Using a 90 degree bend deduction chart for 3/4 EMT is easy. First, determine the size of the conduit you need to bend. Then, find the chart for that size of conduit. For 3/4 EMT, the chart will typically show the deduction for bends ranging from 10 degrees to 90 degrees.
Next, locate the degree of bend you need to make on the chart. The chart will show the amount of length that needs to be added or subtracted from the conduit based on the degree of the bend. This deduction is usually given in inches or millimeters.
Once you have the deduction, add it to the length of conduit needed for the installation. This will ensure that you have the correct length of conduit for the bend.
Conclusion
A 90 degree bend deduction chart is an important tool for anyone working with electrical metallic tubing. It ensures that the correct length of conduit is used for an installation, which is crucial for safety and proper fitting. By using a 90 degree bend deduction chart for 3/4 EMT, you can ensure that your installations are done correctly and safely.