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 2009, Home furnishings retailer Havertys launched a sustainability program using a data-driven energy-management system to pinpoint inefficiency. After implementing a discrete energy-monitoring system, it was able to reduce overall consumption by 20 percent.

Electrical contractors work hard to learn their business and understand how to complete a project professionally and make a profit. The profit part ensures ECs can stay in business. The professional part is mandatory if ECs want to stay in business and grow.

We are all aware fiber optics is the backbone of communications networks such as telecom, the internet, local area networks, cable television and more. It’s also the backbone of the electrical grid.

Over the past two years, the technical committee responsible for IEEE 1547, Standard for Interconnecting Distributed Resources with Electric Power Systems, has added a section on power quality (PQ), including the parameters, indexes and limits on those for distributed energy resources (DERs) connect

More on Systems

 
Avoiding the Pitfalls

According to the Design-Build Institute of America (DBIA), “Design--Build is a process that has been embraced by the world's great civilizations. In ancient Mesopotamia, the Code of Hammurabi (1,800 BC) fixed absolute accountability upon master builders for both design and construction.


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Hitch a Ride on Monitoring Services

What is the role of the electrical contractor in providing contract monitoring services to the end-user? It can be significant if approached properly.


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Terminating Flexible Cords, Recessed Outlet Boxes and More

Flexible cord terminations Q: May a properly sized flexible cord with 15-ampere male attachment plugs on both ends be used to supply an optional standby generator for a small business? The cord is intended to plug into a receptacle on the generator and a receptacle on the outside of the building.


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RFID-Coming and Growing

Radio frequency identification (RFID) is used to track, identify and record people and objects. First introduced during the 1970s, the technology has evolved as new uses are discovered. But it was Wal-Mart's announcement in summer 2003 that pushed RFID into the spotlight.


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Put Communications Technology to Plan

The swift pace of integration is nowhere more profound than in the communications and information technology (IT) sectors. Access-control systems talk to closed-circuit television surveillance and door hardware for instant egress.


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Communication System Requirements

Contractors and installers generally are concerned with cabling, not networks. Installing and testing cabling to standards such as TIA-568 is the heart of their voice/data/video work. Cabling standards writers are primarily concerned with performance and interoperability.


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Industrial Automation

From 2001 to 2003, the United States saw the worst industrial decline since the Depression with customer capacity reduction, including outsourcing and consolidation.


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