L Leitmotif Member Oct 15, 2005 #21 Re: knob and tube wire and romex Hmmmm I think grounds became required in early 60's. GFCI came about in 72 or so (??)
Re: knob and tube wire and romex Hmmmm I think grounds became required in early 60's. GFCI came about in 72 or so (??)
al hildenbrand Senior Member Location Minnesota Occupation Electrical Contractor, Electrical Consultant, Electrical Engineer Oct 16, 2005 #22 Re: knob and tube wire and romex The general requirement that all receptacles be grounded appeared for the first time in the 1962 NEC. GFCIs came in the 1971 NEC. The actual date of enforcement of those Codes was, as now, tied to local adoption.
Re: knob and tube wire and romex The general requirement that all receptacles be grounded appeared for the first time in the 1962 NEC. GFCIs came in the 1971 NEC. The actual date of enforcement of those Codes was, as now, tied to local adoption.