2 Prong vs 3 prong
- Thread starter satox
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Twoskinsoneman
Senior Member
- Location
- West Virginia, USA NEC: 2020
- Occupation
- Facility Senior Electrician
406.3(D)(3) tells you what you can do for replacing any existing
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it is OK to have 2 prong receptacles. But if you replace them then you need to follow NEC.
In a nutshell:
2 prong with 2 prong
2 prong with three prong with GFCI protection
2 prong with three prong with an EGC in the box and connected to the grounding system
In a nutshell:
2 prong with 2 prong
2 prong with three prong with GFCI protection
2 prong with three prong with an EGC in the box and connected to the grounding system
- Location
- Massachusetts
Cavie
Senior Member
- Location
- SW Florida
Nec has no required # of recepticals to be added to a two wire system.
Bill Annett
Senior Member
- Location
- Wheeling, WV
- Occupation
- Retired ( 2020 ) City Electrical inspector
The State of Wv adopted the 2008 NEC along with the 2009 International Property Maintenance Code (IPMC). Part of the IPMC requires "Every laundry ares shall contain at least on grouned type receptacle or a receptacle with a ground fault circuit interrupter" The other receptacles can be of the non grounded type.
Outlets with 2 or 3 prongs are both dangerous.
Four prong receptacles are the safest.
Roger
Reference to the "grounded type" receptacle for laundry areas was even in the 1947 NEC.
Roger
Twoskinsoneman
Senior Member
- Location
- West Virginia, USA NEC: 2020
- Occupation
- Facility Senior Electrician
Four prong receptacles are the safest.
Roger
:blink: Well, that takes care of the ground up/ground down issue!
Had to bring that up didn't ya?? :happyno:
dana1028
Senior Member
- Location
- San Francisco Bay area
I would argue you are required to have as many grounded [equipment grounded] receptacles in the house as is required to comply with 250.114. [This is 'grounded' as opposed to a GFCI protected 3-prong ungrounded receptacle].
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