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. 

In today’s 21st-century global economy, in both corporate and government enterprises, mission-critical applications must have a higher caliber of resiliency and reliability.

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.

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.

Electrical contractors (ECs) are bearing witness to dramatic changes in the physical security industry. Everything is moving to the network. Customers connect to systems and services with smartphone apps.

More on Systems

The Power of Microinverters

Historically, if a problem occurs with a traditional string power inverter that links several solar panels together in series, or even simple shade, that issue can bring down an entire solar photovoltaic (PV) array.

Beyond Retrofits

As government tax credits and utility rebates and incentives dry up, energy-efficiency improvements have evolved beyond the low-hanging fruit of fixture replacement at low cost.

Researching The Future

As with most clean-energy markets, activity in the energy-storage segment is directly tied to government policies.

Overhead and Underground

When it comes to both overhead and underground distribution and transmission lines, all may not be as it seems.

Navigating the World of Connectivity

Global positioning systems (GPS) and radio frequency identification (RFID) are receiving renewed attention for security, operations management and logistical applications, bringing new sources of revenue to installing contractors and additional benefits to their customers.

Pay Attention

I often think how lucky we are to work in a profession in which we save lives. It can also make us a good living if we pay attention. Do you pay attention?

The Rising Sun

The outlook for solar-power project deployment continues to brighten, creating opportunities for electrical contractors. According to the Solar Energy Industries Association (SEIA), Washington, D.C., 2014 was a banner year for U.S. photovoltaic (PV) projects.