Systems

 

 

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. 

Plug loads, according to a pilot study performed by New York-based green technology company ThinkEco Inc., make up the fastest growing end-use of electricity in the commercial sector. As the amount of electricity used by plug loads grows, it becomes increasingly important to manage it.

In attempting to explain to a colleague why we care about negative sequence components, I tried to follow the guidance that Bob Lawrie, another member of the NFPA 70B Electrical Equipment Maintenance committee, offered to me many years ago: never use a formula in an article.

Another year has passed, and we have nothing revolutionary to report about fiber optic technology—no instant-on connectors, dirt-cheap lasers or simple solutions to installation problems.

When a potential client calls on you to provide a fire alarm system, do you assume the design responsibility? If so, what resources do you use?


More on Systems

 
Maintaining Fiber Optic Systems
by Staff |
| under

We all know about maintenance. We know things wear out or get dirty and need replacing or cleaning. This is especially true about cars. We regularly change the oil and filter, rotate the tires, and get the engine tuned up to keep our vehicles running well.

READ MORE
 
Gigabit Ethernet Expands into a WAN Technology
by Staff |
| under

Recently, there has been a surge of interest and activity in using Ethernet as a wide area network (WAN) technology. This is surprising because Ethernet was developed as a local area network (LAN) technology, serving to deliver data between computers within the same building.

READ MORE
 
Grab Your Share of Security
by Staff |
| under

Insiders in the security alarm industry—those installing companies that have been at it successfully for years—are reluctant to share their secrets to success.

READ MORE
 
TIA/EIA-568-B Is Finished!
by Staff |
| under

With the approval of TIA/EIA -568-B.2—Part 2: Balanced Twisted-Pair Cabling Components at the March 2001 meeting of TIA, all three standards making up the TIA/EIA-568-B Commercial Building Telecommunications Cabling Standard are approved and published.

READ MORE
 
Voice/Data/Video Product Focus
by Staff |
| under

Intermediate Arrester

READ MORE
 
The Web Can Help Us Do Important Things, Three Large Contractors Say
by Staff |
| under

From Louisville, St. Louis, and Leavenworth, Kan., the three contractors profiled—last month, this month, and the next—are working to become even more lean and efficient.

READ MORE
 
Energy Crisis Presents Energy-efficient Retrofit and New Installation Opportunities
by Staff |
| under

The ongoing energy crisis in California has opened wide the doors of opportunity for electrical contractors—not only in that state, but all around the country—to sell energy-efficient retrofits and new installations.

READ MORE

Pages