Electric Box Knockout at anneacolletteo blog

Electric Box Knockout. Ensure that the wire/wires you're going to be dealing with are not powered. knockouts are small openings in electrical boxes that provide space for electrical cables/wiring to enter and exit the electrical box.

Gardner Bender 25Pack 1in Stainless Steel Metal Electrical Box
from www.lowes.com

Use a voltage tester to make sure that the power is off before you begin working. knockouts are small openings in electrical boxes that provide space for electrical cables/wiring to enter and exit the electrical box. Ensure that the wire/wires you're going to be dealing with are not powered.

Gardner Bender 25Pack 1in Stainless Steel Metal Electrical Box

Electric Box Knockout knockouts are perforated circles cut into the sides, top, bottom, and back of an electric panel box that can be. Ensure that the wire/wires you're going to be dealing with are not powered. Turn off the power to the electrical box. I have attached a picture.