210.70(A)(2)(3) ?
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There is no requirement for a 3-way there.
210.70(A)(2)(3) ?
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That would be a local amendment as it is not required under the NEC.
210.70(A)(2)(3) ?
That section doesn't exactly require use of three/four way switches, though use of those is one of most common methods to comply.
There is no requirement for a 3-way there.
......
OK, so the words "Three Way" are not in there, but the sentiment is....
2012 Virginia Residential Code:
R303.7Stairway illumination.
All interior and exterior stairways shall be provided with a means to illuminate the stairs, including the landings and treads. Interior stairways shall be provided with an artificial light source located in the immediate vicinity of each landing of the stairway. For interior stairs the artificial light sources shall be capable of illuminating treads and landings to levels not less than 1 foot-candle (11 lux) measured at the center of treads and landings. Exterior stairways shall be provided with an artificial light source located in the immediate vicinity of the top landing of the stairway. Exterior stairways providing access to a basement from the outside grade level shall be provided with an artificial light source located in the immediate vicinity of the bottom landing of the stairway.
Exception: An artificial light source is not required at the top and bottom landing, provided an artificial light source is located directly over each stairway section.
R303.7.1Light activation.
Where lighting outlets are installed in interior stairways, there shall be a wall switch at each floor level to control the lighting outlet where the stairway has six or more risers. The illumination of exterior stairways shall be controlled from inside the dwelling unit.
Exception: Lights that are continuously illuminated or automatically controlled.
OK, so the words "Three Way" are not in there, but the sentiment is....
This will (admittedly) be pushing the interpretation a bit. But the article talks about controlling the "outlet" (singular). This rule could apply to more than one stairway, but it implies that you have at least 2 switches controlling one lighting outlet at each stairway. This is not far from being a requirement for 3-way switching.Where lighting outlets are installed in interior stairways, there shall be a wall switch at each floor level to control the lighting outlet where the stairway has six or more risers.
Me too. :thumbsup:I'll keep installing three ways, my choice.
Keep in mind you only need to install a lighting outlet and no luminaire is required, for a bedroom the light switch location is not specified and could be across the room...as pointed out if you wire a house to the NEC, the homeowner will not be pleased...
Keep in mind you only need to install a lighting outlet and no luminaire is required, for a bedroom the light switch location is not specified and could be across the room...as pointed out if you wire a house to the NEC, the homeowner will not be pleased...
For illumination of stairways over 6 risers.Technically, one switch per level is all you need. Entire first floor.... one switch in the living room. Upper level... one switch in the hallway. Basement... one switch by the panel......