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. 

In the past year, fiber optics underwent some important developments, some technical and some market-related. For those of you working in fiber optic network design and installation, the changes present opportunities and challenges.


This article is the first in a series that provides a step-by-step approach for performing arc flash calculations.
 Arc flash studies and software


I often give my power quality (PQ) 101 course to new engineers or salespeople. This introduction starts with the basics: an overview of PQ phenomena based on IEEE 1159 Table 4.2 followed by Ohm’s and Kirchhoff’s laws and how they apply to power quality.

We strive to protect building occupants, including our employees. Many years ago, the Occupational Safety and Health Administration (OSHA) formed to codify regulations in the area of employee protection.


More on Systems

 
Getting Friendly with C-STAR

Manufacturers, NECA, and IBEW work on certification Since C-STAR is set to make its debut soon, it is time to take another look at the comprehensive certification for low-voltage systems installers.


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Unified Messaging

E-mail, voice mail and faxes find you in the office or on the go Communications, at its core, propels business forward. If not for the daily barrage of phone calls, e-mail messages and faxes, business would probably come to a halt.


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Is an Augmented Cat 6 Cabling Package Coming?

This package is coming—maybe not this holiday season, but probably after the next one. It may be broken up into three smaller packages, but here is a look at what is going to be included: • TSB 155 • Addendum 10 to TIA 568-B.2 • Addendum 11 to TIA 568-B.2 Now, somehow, all three are related.


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A Lock on Hotel Security

The next generation of hotel security and lock systems will depend on two features—ease of access for the guest and ease of control for the hotel. As a result, there are some subtle shifts in the market that will change how electrical contractors do business.


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Hotels and Casinos: A Challenging Combination

Interesting occupancies for fire detection Hotel and casino fire-alarm systems can prove challenging from at least three perspectives: first, the number of people moving about the facilities throughout the day and night who typically have no familiarity with their surroundings; second, the high ambi


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Derating Cables, Metal Faceplates, Grounding Parking Lot Lighting Poles and More

Article 210 Branch Circuits Article 250 Grounding Article 310 Conductors for General Wiring Article 320 Armored Cable: Type AC Article 404 Switches Derating Cables Q: Is it necessary to derate types NM-B, AC or MC cables where these cables are bundled to enter a branch-circuit panelboard?


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Casino Fire Protection-Not a Roll of the Dice!
by Staff |

Two decades ago, the disastrous fire at the MGM Grand Hotel and Casino in Las Vegas focused the world’s attention on the need for improved fire safety in casinos and hotels. The fire occurred on Nov.


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