Rigid electrical conduit refers to a particular pipe used to protect electrical circuits in commercial and industrial electrical installations. It is made of various metal alloys, generally galvanized steel or aluminum alloys. While bending galvanized steel conduit with a hand bender requires a bit of force, it is easily accomplished as long as the pipe size does not exceed 1 inch in diameter. And because the majority of commercial electrical installations use 3/4-inch or 1/2-inch conduit, a hand bender will work just fine. Occasionally, it is necessary to bend the pipe at a 90-degree angle in order reach around corners.
Things You'll Need
- 3/4-inch conduit
- Band saw
- 3/4-inch hand bender
- Tape measure
Determine how far back you need the 90-degree angle from where the end of the pipe will terminate by measuring from where the threads begin to the edge of the surface upon which the pipe will be mounted. Remember to measure from where the threads begin instead of the end of the pipe, because the threads will actually protrude through the junction box. If using 3/4-inch pipe, deduct 6 inches from your measurement, and deduct 5 inches if you are using 1/2-inch conduit. Mark the measurement on your conduit using a marker or pencil.
Place the end of the conduit into the bender so that your mark lands on the arrow marker included on the bender. This will ensure that your 90-degree bend will leave you with the proper measurement.
Set the conduit on the ground, make sure your bender is still on the right mark and place your foot on the foot rest of the bender while holding the bender lever with one hand, then pull up and backward slowly on the bender until you reach the 90-degree marker indicated on the bender.
Remove the bender, let the pipe rest flat on the ground so that the 90-degree angle is aiming up in the air, then place a level on the vertical part of the 90-degree angle to check that it is level.
- Photo Credit electrician,electrical, image by Greg Pickens from Fotolia.com
How to Use a Conduit Bender
Adding connectors for each joint or turn in conduit is not very economical and is time consuming. Using a conduit bender is...
How to Use a Tubing Bender
Soft metal tubing, such as copper pipe, requires a special type of bender in order to safely bend the tubing so that...
Instructions for Bending EMT Conduit
Some electrical wiring projects require the use of electrical metallic tubing (EMT), more commonly known as conduit. In particular, electrical codes require...
How to Use an Ideal Hand Pipe Bender
An Ideal Pipe Bender is a name brand tool used to bend pipes for installation around corners or changing direction without installing...
How to Install a Rigid Conduit
Rigid-steel conduit is a heavy pipe threaded at both ends used to provide protection to electrical wires that run though the conduit...
How to Bend Rigid Metal Conduit
Electrical installers custom-bend straight sections of rigid metal conduit to fit the job specifications. Degree marks on a conduit bender, a hand-held...