When running metal conduit through walls, a bend is required to change the direction of the pipe. Here are the steps for using a bend:

Measure the required length: First, determine the necessary conduit length, and then, based on the required bend angle and direction, locate the installation position of the bend.

Cutting Conduit: Use pliers or scissors to cut the conduit to the desired length, ensuring the cuts are as flat as possible for easy connection with elbows.

Install Elbow: Insert the elbow into one end of the conduit, then seal the connection between the elbow and the conduit to ensure a smooth and secure fit.

Install Through-Wall Conduit: Pass the wiring conduit through the wall and then install a through-wall conduit to ensure there is sufficient space between the metal wiring conduit and the wall, preventing direct contact that could lead to corrosion and damage.

Electrical Installation: Thread wires through metal conduit and connect them to the required electrical appliances, completing the wall wiring process.

It is important to select the correct angle for elbows to ensure that the bending radius of the metal conduit is not less than the specified value, preventing damage due to excessive bending. Additionally, when installing elbows, make sure the connections are secure to avoid any leakage or electrical issues between the elbows and the conduit.