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

Decoding Energy Codes

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

Learning Curve: Challenging Changes to the Codes and Standards

For many of us, these are technologically challenging times. Just when I think I have mastered the latest smartphone, it changes. Prepare yourself, because, just like mobile devices, the codes and standards are morphing in ways you might not expect.

Let's Talk About Precision: Fiber Optic Testing

When manufacturers are asked what is the biggest problem with installing of fiber optic components and systems, they invariably say “testing.” Practically everything they do depends on testing. During development, engineering and manufacturing in their labs, they test product performance.

Taming the IoT: Interoperability 
of Internet Power Gains Traction

The Internet of Things (IoT) has many moving parts, and they’re moving quickly. One is power over ethernet (PoE), the IoT’s electric power delivery agent.

Rising Stars

Rampant technology refinement and innovation are redefining security. More technologies help ensure mobile accessibility.

Caution Required: Fiber Optic Splicing Safety

Splicing safety mostly follows the same guidelines installers use when installing any fiber optic cable plant. However, there are some special issues to be aware of.

Just A Bit More: The Math Behind Power Quality Parameters

My January 2015 article, “It’s Just Math,” explained how various parameters used to evaluate power quality (PQ) are derived while avoiding formulas and other mathematical expressions.