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. 

The alternative


A good fire alarm system design becomes a function of how well you understand fire-protection principles as well as the requirements of NFPA 72, National Fire Alarm and Signaling Code, and NFPA 70, National Electrical Code (NEC).

For several recent columns, I have been writing about splicing optical fibers. Last month, I covered managing fibers inside the splice trays and closures. But there is even more to know about splice closures.


The evolution of intelligent building system technology has triggered shifting roles for contractors and integrators, and the choices they make in their own specializations over the coming years can mean the difference between winning contracts and keeping customers or becoming less relevant.

Demand for wiring and cabling is expected to grow in the months and years ahead. Low-voltage applications for light-emitting diode (LED) technology and fiber optic cabling within the power-generation and telecommunications industries will help drive this market.

More on Systems

 
Getting Physical
by Staff |

Top-of-the-line detection is everywhere Convention centers, museums, federal buildings, airports, high rises, casinos and a host of other public venues have spent the last few years either updating and improving their physical security or starting from scratch with newly installed systems.


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Wireless LANs: The New Attention-Getter

‘Hotspots’ provide high return on investment In our connected world, seeing people frantically check their e-mail before boarding a plane has become commonplace. Instantaneous communications are par for the course, which is why public wireless LANs have come into their own.


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Take Care in Installation

There’s strength in members Many electricians have their first encounters with fiber optic cabling when asked to install the cable for others who terminate and test it.


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ACknowledge

Brush up on what the NEC says about air conditioning During the hottest parts of the summer, most people do not notice the sound of air conditioning units turning on and off, but if a unit fails to start, the effect is noticed immediately. Comfort becomes a premium to be restored at all costs.


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Double Duty

Using fire alarm systems for special applications Fire protection designers may use fire alarm systems for special applications in many building and fire protection scenarios.


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Load-Side Grounding Connections

Picture an electrician installing a load center (technically, a panelboard) on a 120/240V AC system at a location in the building remote from the service location.


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Using System Smarts to Your Advantage

End-users can monitor events and plan responses Standard “tools” in current security and low-voltage equipment and peripherals allow installing contractors to more accurately pinpoint events so the end-user can plan an appropriate response.


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