Mike Dolt Enterprises
Mike Dolt Enterprises
User: Laplacian
Asked on: Friday, April 8, 2011 at 11:15 am EDT
Answered on: Tuesday, May 14, 2024 at 3:57 am EDT
Question: When was the grounded conductor specifically required in the NEC?The 1959 edition specified the insulation color for the grounded conductor.The question arises due to cap vs. exp guidelines for an improvement project to address some deficiencies at an old building on site. Need to know if the building pre-dates the specific requirement for the grounded conductor on a 277V neutral load.
The grounded conductor was specifically required in the NEC in the 1962 edition. Flag for review