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. 

Energy costs and potential energy shortages are increasingly driving commercial building and industrial facility owners to find ways to use less energy for the same level of activity.

I suspect that the idea of employing anaerobic adhesives for fiber optics came from someone using Krazy Glue or the two-part adhesive made to fix a car’s rearview mirror after it fell off in the hot summer sun.

In solar installations, ranging from rooftop panels and larger community- and utility-scale arrays, photovoltaics (PVs) are becoming increasingly important to our energy supply.

Damaged dog-fence power source

Lightning is the biggest cause of damage and destruction of electrical and electronic equipment in industrial facilities, commercial buildings and homes, as stated in the 2008 report by the U.S. National Lightning Safety Institute.

More on Systems

 
E-Lighting - Too Much of a Good Thing?
by Staff |
| under

The Internet is a wonderful creation. But, is it too much? It permits you to find all sorts of interesting information at no cost.

READ MORE
 
Is Copper Cheaper than Fiber?
by Staff |
| under

Fiber optics is always expected to cost much more than copper cabling. Whatever you look at—cable, terminations, or networking electronics—fiber costs more. So isn’t it obvious that fiber networks are more expensive than copper? Maybe not! There is more to consider before deciding this.

READ MORE
 
The State of Gigabit Ethernet in LAN Wiring Today
by Staff |
| under

Let’s begin this series on Gigabit Ethernet by recognizing the state of local area networks (LAN) wiring today. (My Gigabit Ethernet article in the September 2000 issue of Electrical Contractor provides background.)

READ MORE
 
Performance and Field Testing of Installed Optical Fiber Systems
by Staff |
| under

Last month’s article dealt with testing copper cabling systems.This month, we examine the performance and testing requirements for installed optical fiber systems. Testing and performance requirements for optical fiber cabling systems were established in Annex H of TIA/EIA-568-A in 1995.

READ MORE
 
E-commerce in the Office
by Staff |
| under

Previous articles have explained some of the ways e-commerce may affect your project management when you use Internet applications service providers for collaboration and material purchasing.

READ MORE
 
How Many Fibers Are Enough?
by Staff |
| under

Our local newspaper reported that the local phone company had completed installing fiber optic cables between their central offices in the Boston area. That didn’t surprise me, but what did was the description of the cables they were installing. Each cable had 864 fibers in it!

READ MORE
 
Permanent Link versus Basic Link: What Does It Mean for Copper?
by Staff |
| under

With the approval and publication of Telecommunications Industry Association (TIA)-TSB67 “Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems” in October 1995, TIA launched the industry requirement for cabling system transmission performance and field

READ MORE

Pages