Integrated electrical and low-voltage systems of all types—inside and outside a building—encompass the range of work that electrical contractors do. The articles in this section highlight different types of work, from security, fire and life safety, to traditional electrical power and distribution, to lighting, cabling and more. 

One byproduct of the renewable economy has been the growth of microgrids, as large institutions and communities look for new ways to accommodate distributed generation and utilities take measures to increase grid reliability.

Among tech companies, Tesla has always done things in a big way. Recently, the Palo Alto, Calif.-based manufacturer of luxury electrical vehicles added to its list of outsized endeavors when it announced a major battery storage project for electric utility Southern California Edison (SCE).

The quote “The more I learn, the more I realize how much I don’t know,” is popularly attributed to Albert Einstein.

Commercial building energy codes impose design standards for nonresidential buildings’ energy efficiency. Many states have implemented an energy code to regulate building design.

More on Systems

Enhanced Web Applications

The Internet is as popular as ever. It seems you can’t turn around without bumping into something Web related. But the Internet has evolved; there is more to it than surfing for sports scores and celebrity gossip.

Design and Documentation

What is documentation and why is it important? We hear about “documenting” a network, but we don’t often listen. It seems like too much work for too little or no payback. But that way of thinking is wrong.

The Lowdown on Camera Lens Advances

Variety and innovation mean installation flexibility when it comes to lenses for closed-circuit television surveillance (CCTV). That’s just what the end-user needs: a camera and lens that can satisfy whatever the surveillance application dictates.

Cities Unto Themselves

Hospitality and gaming facilities, with their large crowds often sharing one property, need quick and reliable fire detection systems with the ability to pinpoint the area in alarm to allow selective and orderly evacuation.

Wireless Solutions: When Less is More

Times have changed and so has the hospitality industry. Nowadays, bigger is almost always better. Quaint bed and breakfasts may still exist, but most hotels have gone in the other direction. Just take a look around at any recent hotel or casino and you can literally get lost.

When Do You Need OTDRs?

In outside plant fiber optic installations, every cable installed will be tested for end-to-end loss with a source and power meter and an OTDR trace will be taken of each fiber. Yet OTDRs—optical time domain reflectometers—are rarely used in premises applications. Why is that?

Manufactured Wiring Systems, Receptacle Locations and More

Article 210 Branch Circuits Article 215 Feeders Article 240 Overcurrent Protection Article 300 Wiring Methods Article 320 Armored Cable Article 352 Rigid Nonmetallic Conduit Article 404 Switches Article 604 Manufactured Wiring Systems Article 680 Swimming Pools, Fountains and Similar Installations A