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. 

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.

When I entered the business, I “sold” fire alarm systems. Codes at the time had begun to require that such systems be installed in some occupancies.

In its paper, “Intelligent Efficiency: Innovations Reshaping the Energy Efficiency Market,” Greentech Media notes that efficiency is an untapped energy resource that is already embedded in every commercial building, manufacturing facility and corporate campus.

More on Systems

Choosing a Loss Test Set

You get what you pay for Every fiber optic cable needs to be tested for loss with an optical loss test set (OLTS). The OLTS simulates the actual network hardware that will run on the cable so the test results will show if the network will work properly on the cable.

Important Progress for LAN Performance Standards

The Telecommunications Industry Association (TIA) may only hold three meetings a year, but it does get plenty of significant work done.

Ground-Fault Protection Systems for Services

Ground-fault sensing and relaying equipment is intended for use in power distribution systems rated at 600V maximum and are considered to be equipment protection devices, not personal protection devices.

The Return of Radio

Wireless in 2004 and beyond is defined by innovative applications Wireless has gone beyond the realm of simple remote control. Now, wireless is always a part of the majority of the systems, services and products we use.

Face-to-face Communication

Videoconferencing allows visual contact without travel Who could have predicted that one day we could all instantly communicate no matter where we were, no matter what we were doing?

Understanding OTDRs

They can be useful—but only if used correctly There are two distinctly different fiber optic applications: premises cabling and outside plant (OSP) cabling. Premises cabling deals primarily with short multimode cables in buildings or between buildings in a campus.

Redundant Grounding in Patient Care Areas
by Staff |

Redundantly grounding all electrical equipment in a patient care area has provided one of the most critical pieces of a very complex puzzle involving patient protection.