Why Is There a Third Wire in Your Walls?

Open the breaker box in your home, and you will find three thick wires coming in from the street. Two of them carry the power. The third one — the neutral wire — looks like it does nothing at all. That third wire was invented by Edison in 1883 to save a fortune in copper. It steadies the voltage in your home, and if it ever breaks — an open neutral — it can quietly destroy the appliances in your house. This is the story of the wire you never see — from Pearl Street, New York, to the split-phase 120/240V breaker panel in your own home today. In this video: Why Edison needed a third wire at allHow the middle wire balances two circuitsWhy neutral is NOT groundThe bonding fight electricians still argue aboutWhat happens when the middle wire breaksThe warning signs in your own homeHow the safety wire finally arrivedSubscribe to Stars & Strange for more weird history hiding in your own home. Chapters: 00:00 The Copper Bill 02:32 The Third Wire 04:52 How the Middle Wire Works 06:55 The Quiet Stabilizer 08:44 Neutral Is Not Ground 10:54 The Bonding Fight 13:02 When the Middle Wire Breaks 15:24 The Warning Signs 17:26 Why Nobody Watches It 19:11 The Safety Wire Arrives 20:54 The Wire That Still Runs Your House