Occupancy sensors automatically save energy by reducing lighting after a space is vacated. After more than 10 years of tightening commercial building energy codes, they are a staple in new construction projects.
While the light-emitting diode (LED) has gotten a lot of attention in recent years, another revolution has quietly developed in the background: intelligent (digital) lighting control. The future of lighting is solid-state, and it will be highly controlled.
With cities and utilities worldwide upgrading to light-emitting diode (LED) lighting for streets and outdoor areas, owners and installers wonder when they will build in the controls for smart-city applications.
Wireless power management is on the rise. With its choice of closed or open systems, customers expect seamless performance. The electrical contractor (EC) that understands the two wireless approaches can recognize the benefits of each, ably work with a design team and better advise the client.
For several years, I have been seeing a new hole in the theoretically 100-percent-complete electrical drawings we are provided for bidding. Within the last year, the problem has gotten bigger, driven by increasingly strict energy-usage requirements.
Multifunctional sensors, networked wireless controls accessible from mobile devices, and, yes, light-emitting diodes (LEDs) are trends that picked up steam this year. These interconnected technologies will be transformational for the electrical contractor (EC).
Thanks to advanced lighting controls, various industries view lighting as an important element in energy-efficient design. It is a business-intelligence platform that combines sensors and systems in a way that provides excellent illumination and energy savings.
While the home-automation market is still in a bit of a Wild West state, the combined factors of industry consolidation and consumers’ growing interest in interoperability are forcing some order into the chaos of available products.
It wasn’t long ago that light-emitting diodes (LEDs) were used primarily in very specific applications, such as indicator lights and exit signs. The deployment of white LEDs for general illumination applications always seemed in sight but out of reach.
In 2014, the Royal Swedish Academy of Sciences awarded the Nobel Prize in Physics to a group of scientists for their 1990s invention of efficient blue light-emitting diodes (LEDs), which enabled LEDs to generate white light.
The light-emitting diode (LED) offers energy savings, lower maintenance requirements and other advantages compared to incandescent sources. However, many LED products perform poorly with existing dimmer controls.
A limited number of low-voltage contractors specialize in the installation of sprinkler systems power and controls. For them, it provides a regular source of revenue that most contractors have bypassed.
In a recent training presentation, a question came up about the new identification requirements for automatically controlled receptacles. Does the marking need to be on the receptacle face, or is a marking on the faceplate in compliance?
Commercial buildings could cut their heating, ventilating and air conditioning (HVAC) electricity use by an average of 57 percent with advanced energy-efficiency controls, according to a year-long trial of advanced controls at malls, grocery stores and other buildings across the country.
Times are changing for the electrical contractor (EC). The trend even affects the basics. As Electrical Contractor focuses on the latest developments in cabling and controls, the 2014 NECA Show in Chicago, Sept.