A good fire alarm system design becomes a function of how well you understand fire-protection principles as well as the requirements of NFPA 72, National Fire Alarm and Signaling Code, and NFPA 70, National Electrical Code (NEC).
Addressable fire alarm systems are the typical choice for new installations. The programmability gives designers and installers an astounding array of operational features. However, occupants may not understand their responsibilities or how to interpret an alarm.
Once upon a time, owners hired an architect to draw up plans for a building and put the design out to bid, but that method is rapidly changing. Such design/bid/build (DBB) arrangements still may make up the majority of today’s project contracts, but just barely.
Residential interior lighting is as much art as science. A good residential lighting design is functional and comfortable, blends with the architecture and decor, and helps the owner personalize their home. The result is experienced as work, leisure, living, showcase, castle and sanctuary.
Landscape lighting is one of the most artistic lighting design disciplines. Its primary purpose is ambience—to make nighttime spaces aesthetic and inviting. On a more practical level, it can extend the usable hours of a site, facilitate wayfinding, improve safety and provide a sense of security.
From simple apps for mobile devices that store product data, to more sophisticated, computer-based software programs that calculate photometrics (the measurement of light as perceived by the human eye), a wide range of products are available in the lighting industry to assist electrical contractors
Lighting strategies to optimize worker performance are alive and well. In fact, the correlation between lighting and human performance is now better understood than ever, and the knowledge is influencing manufacturers, lighting designers and savvy installers. The office is the latest subject.