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 What is Residential Scene Control?
Integrated home systems provide scene control capability. If you are
looking for more residential project work, knowing how to explain scene
control to a potential customer will help.
There are different types of lighting controls. The most basic lighting
control is a simple two-wire on and off switch. The next type is a
light controlled from two or more locations using three-wire switches.
Where you want to control groups of lights, people use integrated
residential controls.
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 GFCI Locations in Multi-Family, Commercial, Industrial, and Public Facilities
The 2008 NEC has made modifications and changes that clarify where GFCIs are required.
For multi-family dwellings, each unit with a separate entrance at
ground level must have at least one exterior accessible GFCI receptacle
located no higher than 6 ½ feet above the ground. Any 20 square foot or larger balcony, deck or porch of a dwelling unit
that is accessible from within that unit must have at least one GFCI
receptacle available within 6 ½ feet above and within the perimeter of
the space.
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 New UL GFCI Standards - An Overview
Underwriters Laboratories (UL) updated their standards listing requirements for Ground Fault Circuit Interrupters (GFCI's) effective January 1, 2003.
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