When bending a 90° stub up using 15° segment bends, how many bends must be made?

To determine the number of bends needed to create a 90° stub up using 15° segment bends, it is essential to understand how the angle of each bend contributes to the total angle required.

Each bend of 15° adds to the cumulative angle of the stub up. Therefore, to calculate how many 15° bends are necessary to reach the total angle of 90°, you divide 90° by the bend angle:

90° / 15° = 6.

This calculation shows that six 15° bends will yield an overall bend of 90°. Each segment contributes to achieving the desired alignment, making it necessary to use exactly six bends to complete the 90° angle efficiently.

This approach underlines the importance of precise calculations in electrical installation work, where accuracy in angles can significantly affect the fit and functionality of the wiring or conduits being installed.