3 Reasons Not to Use a Non-Polarized Extension Cord with a Polarized Plug

It creates an electrocution risk A polarized plug has one wider blade to ensure hot and neutral wires connect correctly. Using a non-polarized cord lets you plug it in backward, which can leave the device’s metal chassis or exposed parts live even when switched off.

It bypasses built-in safety features Appliances like lamps, kitchen gadgets, and electronics rely on correct polarization to keep the hot wire away from user-accessible areas. Flipping the connection removes that protection.

It’s not worth the small savings A non-polarized cord costs a few dollars less than a proper polarized one. That’s a poor trade-off for a real electrocution hazard, especially in damp areas or with metal-bodied tools. Always use the right cord—polarized, and grounded if the device has a three-prong plug.