Electricity: backstabbed wiring
Self-tutoring about “backstabbing”: the tutor relates its meaning in household wiring.
Some electrical outlets have holes in the back that can receive incoming wires from the household wiring system. Such a hole contains a clamp that holds the wire once it’s pushed in. It’s quick, but shouldn’t be done. Instead, on the outlets I’ve seen, the respective wires should be properly, snugly fastened beneath the screws on the sides on the outlet, meant for that purpose.
Why is backstabbing not the best practice? I’m no expert, but I’ve come to understand that the gripping mechanism, although it may hold the wire firmly, actually achieves limited contact with the wire. Therefore, current doesn’t flow as easily as it should through that junction, which can cause heating. Perhaps it will lead to poor performance; in the worst case it could cause a fire.
This video by Dino Pinch really helped me to understand the situation, as well as how to detach the backstabbed wires, then reattach them properly.
georgebrazilplumbingelectrical.com
Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.