RFEngineer
Member
I have searched the NEC regarding new installation electric dryer requirements pertaining to receptacles and branch circuits. I have seen numerous references to the effect that the post-1996 NEC now requires 4-wire service for electric dryer feeds. However, I see no direct reference in my 2008 edition of the NEC. I am familiar with Article 250.140, but what I need an exact reference stating the 4-wire requirement. Can anyone cite the exact source? Thanks.