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. 

All of those millions of miles of dark fiber are primarily expected to deliver broadband connections. The Internet continues to grow unabated, and bandwidth must be expanded to accommodate that growth. 

Sometimes called the third wave of the Internet, the Internet of Things (IoT) is the next technology megatrend.

There is an old saying that liars figure and figures lie, which implies that the truth can be a challenge to discern from both people and data. At a recent standards-making conference, I encountered some examples of this concept that seemed worth sharing.

For electrical contractors with a low-voltage or security division—or for any company involved in physical security and surveillance—keeping pace with new technology is one of the greatest challenges.

More on Systems

Wiring Air Conditioning and More

CODE CITATIONS Article 210 Branch Circuits Article 250 Grounding Article 300 Wiring Methods Article 310 Conductors for General Wiring Article 334 Nonmetallic Sheathed Cable: Types NM, NMC and NMS Article 422 Appliances Article 518 Places of Assembly Article 700 Emergency Systems Wiring air condition

Fiber Optic Update

Fiber optics, as we all know, has not had a very good time the last couple of years, with the overall market dropping by almost 80 percent (see chart at top right).

Installing a Service Disconnect

Many changes have occurred to the National Electrical Code (NEC) since the first NEC was published on Aug. 31, 1897. Even though the electrical industry was in its infancy, this “first” NEC was remarkably insightful and has withstood the test of time.

IBS: Here Today, Here to Stay

Over the past few months, many progressive contractors have told me that becoming increasingly involved in the Integrated Building Systems market has been one of their primary business goals––and it’s a step in the right direction.

Voice and Data Systems Converge

The telephone and networked personal computer (PC) have become indispensable tools in today’s fast-paced business environment.

Avoiding False Alarms

Many electrical contractors will attest to the fact that fire alarm systems offer a nice addition to their primary electrical business. Most can also tell a horror story or two about the number of costly and unpaid service calls due to false alarms from fire alarm systems.

Distance Education

The education market has gone through many changes over the years. Advances in technology seem to have provided the biggest differences. Just think about it: computers are more commonplace than ever and many kids don’t even know what a typewriter is.