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 outlook for solar-power project deployment continues to brighten, creating opportunities for electrical contractors. According to the Solar Energy Industries Association (SEIA), Washington, D.C., 2014 was a banner year for U.S. photovoltaic (PV) projects.

All of that dark fiber we have been discussing the last few months is getting used for some fast-growing applications, and the fastest may be connecting cell towers. Cell phones have evolved into mobile data devices. Smartphones and tablets consume vast amounts of data.

A hot summer’s evening usually begets long lines at the local ice cream shop. Recently, at one such shop, the line grew extra long when the cash registers and credit card machines mysteriously powered off and on.

Historically, if a problem occurs with a traditional string power inverter that links several solar panels together in series, or even simple shade, that issue can bring down an entire solar photovoltaic (PV) array.

More on Systems

 
Stripping Fibers
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We left off last month preparing a fiber optic cable for termination.

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Wiring Spaghetti
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While spaghetti adorned with one of the dozens of different sauces that are served in the small, off-the-beaten path restaurants in the Italian countryside is “splendido,” wiring that looks like spaghetti is just the opposite.


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Friends To The End: Partnering, relationships and design/build 

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How do you build a relationship with your customers centered on trust? It starts with meeting commitments and consistently completing projects on time, on budget and in a code-compliant fashion. Why is this relationship important?

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No False Alarms
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“The serious losses in life and property 
resulting from fires causes me deep concern. I am sure that such unnecessary waste can be reduced.

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Inspection, Testing And Maintenance
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We all know that fire alarm systems that are tested and maintained on a regular basis are more reliable. According to NFPA 72, National Fire Alarm and Signaling Code, the owner is responsible for inspections, testing and maintenance as well as any alterations or additions to the fire alarm system.

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Agreements benefit contractors

Keep It In Order: Maintenance and service contracts

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As security systems become more sophisticated and complex, proper maintenance has become increasingly critical. Gone are the days when electrical contractors could just install a system and then walk away.

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Do No Harm
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Fixing or mitigating the problem of equipment malfunction or misoperation due to incompatible power supply isn’t much more complicated than diagnosing the power quality problem.

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