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. 

There is no doubt that video surveillance cameras are a critical, indispensable part of security at the customer’s protected premises. They can provide general security and assist with human resources functions when integrated with access control.

When you examine an end-user’s needs, do you really know what they expect from their security solution? They want plug-and-play, like popular consumer platforms based on the highly convenient and adaptable iOS and Android operating systems.


The title of this article is not meant to make you smile. 
Most Electrical Contractor readers work in the contracting business. But, on a daily basis, personnel and clients likely bombard you with requests to take on a new challenge and to do a better job at the work already being performed.


In October, I listed some of the significant changes proposed for the 2019 edition of the NFPA 72, National Fire Alarm and Signaling Code. This month, I cover more of the important proposed changes. Keep in mind that this is based on the public input stage.

More on Systems

 
Innovative Fire Alarm Systems

Whether mandated by new codes or facilitated by a keen interest in life safety as a result of recent news events, fire alarms continue to rise to the occasion with intelligence and advanced capabilities.


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Fiber Optic Splices

There are two different ways to join two optical fibers: splices or connectors. Splices are permanent joints, while connectors allow the two fibers to be disconnected at the joint.


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Grounding Continuity, Church Wiring and More

Grounding-electrode continuity Q: Does the grounding-electrode conductor to driven ground rods have to be unbroken to both rods or may a splice be made at the first rod, then continue to the second ground rod by installing two ground clamps at the first ground rod, then continuing to the second rod


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Ferndale Electric Takes the Holistic Approach

In the heart of Detroit, surrounded by erosion and boarded-up businesses, a major construction project is nearing completion.


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Access Denied

Access control is nothing new. Locks on doors and windows are a rudimentary form of shutting people out. While not the most effective means of control, plenty of facilities use it as their only means of security. ID cards are nothing new either.


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Take the Layered Approach to Wireless
by Staff |

Some predict a totally wireless world, but that will probably never happen. There are so many other good media out there-including fiber optics, unshielded twisted pair, coaxial and other bundled wiring solutions-chances are there will always be room for both hardwired and wireless.


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The Basics of BPL

Ever since Former Federal Communication Commission (FCC) chair Michael Powell said broadband over power line technology (BPL) was “the great broadband hope,” interest in the technology has grown. Powell's comments came on the heels of the FCC's ruling on Oct.


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