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. 

As renewable power increases its market share, energy storage assumes a larger role. Recognizing the importance of government benchmarks, California lawmakers have taken steps to raise the state’s energy-storage standard.

J.M. Electrical Co., a Lynnfield, Mass., contractor with a specialty in advanced automation building system installations, recently completed project operations at the 85,000-square-foot Hanscom Air Force Base Middle School in Bedford, Mass., which holds 312 students.

This summer, New York-based Consolidated Edison (Con Edison) spent $1.6 billion to upgrade its delivery system, including 12 network transformers, 70 overhead transformers, 16 underground feeder sections, 37 overhead sections of power lines and reinforcement of 25 electric feeders.

Last month, I wrote about measurement uncertainty and metrology, the science of measurements. This month, I get more specific and cover the uncertainty of some basic fiber optic measurements, starting with optical power.

More on Systems

Solving the Labeling Dilemma

Labeling and documentation can be separate tasks, but they go hand in hand and should be completed, at least in part, at the same time.

Quick Fiber Optic Terminations

One often needs a fast fiber optic termination.

Derating Conductors in a Raceway and More

CODE CITATIONS Article 220 Branch-Circuit, Feeder and Service Calculations Article 230 Services Article 240 Overcurrent Protection Article 310 Conductors for General Wiring Article 312 Cabinets, Cutout Boxes and Meter Socket Enclosures Article 404 Switches Article 410 Luminaires (Lighting Fixtures)

TIA and You

The Telecommunications Industry Association (TIA) is an industry organization with paying members from the communications/telecom industry. They develop minimal performance standards for cabling and related hardware and installation standards for the users/designers.

Why Isn't Fiber More Popular?

My first thought in writing this column was that the title was wrong.It should be “Why Do People Still Install Copper?” In the fiber optic business, we’ve suffered from the copper industry’s harping that fiber is fragile because it’s made of glass, hard to install and too expensive.

Intelligent Buildings

A flooded landscape strewn with debris was all that many could see last month as Hurricane Isabel hit the East Coast of the United States, leaving millions without power and blowing down 60-foot pine trees in many neighborhoods, including mine.

Shopping for Retail Fire Systems

Retail stores or “mercantile” properties, as defined by the various building codes, include everything from small mom-and-pop stores in free-standing buildings to multiple stores in a strip mall, from large, enclosed malls to big-box stores selling books, hardware or whatever.