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. 

What PIAM does


It is becoming increasingly complicated to manage both the physical and digital access security needs of corporate, institutional and government facilities.

In several recent columns, I discussed the process of fiber optic terminations. I examined each step in detail and shared some of the things I have learned from experience and teaching students. As they say, one learns from one’s mistakes.


Data centers are energy hogs. They can consume up to 100 times more energy than a standard office building, according to the Department of Energy’s (DOE’s) Office of Energy Efficiency and Renewable Energy (EERE).

Dranetz Model 606 was introduced in 1975.

The importance of monitoring the quality of the electrical supply has increased with the ongoing push to boost uptime, productivity and profits. When carrying out business 24/7, having a process or operational interruption can negatively affect of the bottom line.

More on Systems

 
Home Automation Gains Momentum
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From personal home theaters complete with surround-sound speakers, high-definition, large-screen projection and DVD recordings to total-system lighting packages, electrical contractors are profiting from rapid technological advances.

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MACs: A 'Contractor Paradise'
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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
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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
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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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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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