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. 

As I have described in the previous few columns, splicing fibers is fairly easy. If the installer cleans and cleaves the fibers properly, the machine does the rest. However, the installer’s job is not over at that point.


Industrial firms and contractors stand to benefit from emerging innovations in remote-monitoring technology.

When people send in data from a power quality monitor to be reviewed, some common questions include “Is my site normal?” and “Does this data look OK to operate my facility?” Such questions usually get the same ambiguous answer: “It depends.” The quality of electric power as supplied and how much is

When it comes to systems integration, intrusion detectors and sensors are the ties that bind.

More on Systems

 
MACs: A 'Contractor Paradise'

When it comes to moves, adds and changes, most customers can’t or won’t do what it takes to cut costs. As a result, many VDV contractors are surviving tough times thanks primarily to MACs work.


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Aluminum Wire Terminations, Oversize Distribution Panels and More

CODE CITATIONS Article 110 Requirements for Electrical Installations Article 215 Feeders Article 220 Branch Circuit, Feeder and Service Calculations Article 250 Grounding Article 400 Flexible Cords and Cables Article 404 Switches Article 430 Motors, Motor Circuits and Controllers Aluminum wire termi


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Article 210 - Branch Circuits: Required Receptacle Outlets, Part X

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

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

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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Installing Fire-Alarm Systems, Part II

Last month, in part one of this article, we said the National Electrical Code (NEC) and the “National Fire Alarm Code” from the National Fire Protection Association (NFPA) were two of the most important resources needed to properly install a fire-alarm system.


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Market Convergence Means Opportunity

While the general market outlook for unshielded twisted-pair (UTP) and coax cable is flat, certain segments will jump this year. “Overall market growth will be in the lower single-digit area,” said Bill Miller, director of marketing for Belden Electronics Division.


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