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 fountains and walkways of the healing garden are illuminated by LEDs.

In the healthcare-lighting arena, the improvements and increasing affordability of light-emitting diode (LED) products, along with advancements in lighting control technology, enable creative lighting designs that benefit patients and staff members.

In preparing to write my next article, I often review the topics I have covered in the past year or so, and I consider the issue’s theme.

As most of you know, the codes and standards for fire alarm and mass notification systems change on a three-year cycle. New technology and more refined occupant needs top the list of reasons for most changes.

The predictions have arrived! Analysts expect the first quarter of 2015 to show a rapid rise in commercial construction. Obviously, this is good news on almost all fronts.

More on Systems

 
Article 210 - Branch Circuits: Required Receptacle Outlets, Part X
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210.52(H) Hallways Article 210 covers branch circuits except for those supplying only motor loads. Motor-load requirements are covered in Article 430. Receptacle-placement provisions are stipulated in 210.52(A) through (H).

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Alternative Energy Storage Solutions to Take on Mature UPS Market
by Staff |
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Frequent power cuts that disrupt crucial operations of organizations create the need for uninterruptible power supply (UPS) systems. Companies dependent on sensitive electronic equipment require continuous, reliable power, thereby increasing the demand for power quality products.

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Splicing Optical Fiber
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It’s possible to terminate fiber optic cable in two ways––connectors or splices. Connectors install on fiber ends that mate to other fibers creating a temporary joint, or connect the fiber to the transmitter or receiver of a piece of network gear. Splices are used for permanent joints.

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Fiber Optic Update - A Peek At The Future, A Look At The Past
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The beginning of the year is always a good time to reflect on the past and contemplate the future. Except in fiber optics. It is hard to get people to look back, as the last year and a half has been pretty painful for many in fiber.

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Contractors Should Learn About Wireless LANs - They're No Longer Cost-Prohibitive
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Just yesterday, or so it seems, wireless technology meant nothing more than cell phones. In fact, it may be that the whole love affair with all things wireless truly began with pagers. Remember when everybody and their brother had one? Don’t you wonder where they all went?

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Code Question
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Question: I know you have addressed the practice of using 15 amp rated conductors for switch legs in residential 20 amp lighting circuits. I still have electricians saying it meets code. Will you try again? Thanks, Don Stephens Answer: Thanks for your comment Don.

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Wireless Local Loop Technology Eyeing the Last Mile
by Staff |
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In spite of previous setbacks, many in the telcom industry still see potential in Wireless Local Loop (WLL) technology to complete the connection between users and their phone companies. Past attempts have not been encouraging.

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