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. 

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.

Historically, security system installations have only mandated acceptance testing as the last requirement for a project to be deemed completed.

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.

More on Systems

 
Extending Fiber's Reach
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For almost 15 years, one had only two choices if installing fiber.

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PVC Conduit Underground, Disconnect for Residentia
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CODE CITATIONS Article 210 Branch Circuits Article 220 Branch Circuit, Feeder and Service Calculations Article 250 Grounding Article 352 Rigid Nonmetallic Conduit: Type RNC Article 422 Appliances Article 430 Motors, Motor Circuits, and Controllers Article 514 Motor Fuel Dispensing Facilities Article

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Planning a Fire Alarm System Installation
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Developing a ‘specialty’ crew is important The fire alarm system installation for most new building projects inevitably is a Division 16 responsibility.

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The DER Niche Market
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Electrical contractors working for utilities or interested in a growing niche market might do well to investigate opportunities in distributed energy resources (DER). They are parallel and stand-alone electric generation units located within the electric distribution system at or near the end-user.

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Article 210--Branch Circuits: Required Lighting Outlets, Part II
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210.70 Lighting Outlets Required The National Electrical Code states its purpose as “the practical safeguarding of persons and property from hazards arising from the use of electricity.” [90.1(A)] The adequacy of the Code is covered in 90.1(B).

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Fuel Cells--Power Source for the Future
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It has been three decades since fuel cell technology first emerged, but the clean and efficient power alternative is just now beginning to take off.

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Homeland Security: Contractors Vie for New Systems Installations
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Without a shadow of a doubt, the events of Sept. 11, 2001, changed the world. Our understanding of what it means to feel safe and secure were forever altered.

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