CODE CORNER: Type NM Cable "ROMEX" | The Daily Reporter - WI Construction News & Bids
In this month’s column, I will try to reveal some key requirements that can be found in the National Electric Code when using type NM, Nonmetallic Sheathed cable as a wiring method. The trade name “Romex” was first coined after the introduction of this new type of wiring method back in the early 1900’s. The General Cable Company invented this new wiring method using a flexible cable at its Rome Wire Division in Rome, New York - hence the name “Romex”. It was first listed in the NEC in 1926.
Source: dailyreporter.com