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.
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Comments
 Last month, I discussed one of the most important tools in the fiber tech’s toolbox: the fiber optic power meter. This month, let’s examine the other tool that is equally important: the test source used with the power meter to measure the loss of the cable plant. |
 I recently realized that our failure to properly train fire alarm system technicians has created a group of workers who simply do not understand the reasons they do what they do. When a technician asks for the rationale behind a procedure, we often respond, “Because the code requires it.” |
 Simple power quality problems often evolve into tangled webs that take a long time to unravel. |
 The fire alarm systems industry has changed considerably over the years. Many old-timers can remember a fire alarm system that only detected a fire and sounded an alarm. Nonfire alarm systems did not interface with these fire alarm systems. |
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