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. 

Electrical contractors (ECs) are bearing witness to dramatic changes in the physical security industry. Everything is moving to the network. Customers connect to systems and services with smartphone apps.

In my 40-plus years in fire protection, I have learned that electrical contractors (ECs) sell and install the lion’s share of fire alarm systems in medium- to large-size buildings. Most of these contractors also finish the installation, pass the acceptance test and move on to the next project.

There is no question today’s fire alarm systems are more complex than they were 20 years ago. More panels are addressable, which means programmers, installers and inspection and testing personnel need to be better qualified.


Do you know everything you need to about the specialty electrical systems you install? What about the new technology that appears on the horizon? Probably not, since you cannot build a profitable contracting business by being a jack of all trades and master of none.

More on Systems

 
Analog Addressable Fire Alarm Systems

Is high-tech better? Fire alarm system technology seems to be developing faster each day. It wasn’t that many years ago when an electrician treated a fire alarm system just like any other electrical system he or she had to install.


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Choosing the Right System

Choices include surveillance, access control and location Safety and security systems for any healthcare facility are complex. There are so many “systems” available that it is quite daunting to decide which ones are worth the investment.


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Article 220-Branch Circuit, Feeder and Service Calculations

Cooking Equipment Calculations, Part IV 220.19 Electric Ranges and Other Cooking Appliances


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MooreAiis Law is Calling

Physical security and information technology team up Moore’s Law basically states that computer technology doubles in ability every 18 months or so, but why should that be a surprise?


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Length of Secondary Conductors Without Overcurrent Protection and More

CODE CITATIONS Article 200 Use and Identification of Grounded Conductors Article 210 Branch Circuits Article 240 Overcurrent Protection Article 300 Wiring Methods Article 334 Nonmetallic-Sheathed Cable: Types NM, NMC and NMS Article 362 Electrical Nonmetallic Tubing: Type ENT Article 450 Transformer


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The Network of Choice

The wired home is more prevalent than ever Thanks to our technology-driven world, the American dream of home ownership has evolved into owning a “wired” home that allows for enhanced networking. Home networking has become a multimillion dollar industry.


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Choosing a Loss Test Set

You get what you pay for Every fiber optic cable needs to be tested for loss with an optical loss test set (OLTS). The OLTS simulates the actual network hardware that will run on the cable so the test results will show if the network will work properly on the cable.


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