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 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.

Maintenance and renovation services don’t get much more complex, challenging or fluid than in data centers. As cloud-based computing pervades, data centers are becoming more plentiful, the data they collect and manage is growing, and security needs are becoming more critical.


All electrical contracting companies—especially those involved in low-voltage work—rely on technology. Sprig Electric considers technology to be one of its most important competitive advantages, along with efficiency and personal service.


More on Systems

 
Figure 1: Distorted current waveforms from six-pulse converters
Imperfect Harmony

The basic principles of harmonics have been the same since 1822, when Joseph Fourier first proposed that some functions could be composed of an infinite sum of harmonics.


READ MORE
 
Creating A Commodity

Selecting an Internet protocol (IP) camera can be mind-boggling. Do you need 4K, one of the highest resolutions available? What about storage? Does the camera save with the super-efficient H.264 compression algorithm, or can you store on SD memory cards?



READ MORE
 
Dressed in Overalls

In my everyday work with contractors installing fire alarm systems, I do not find many people who can honestly say they have read NFPA 72 2013, National Fire Alarm and Signaling Code, at least once.


READ MORE
 
Greenlee's fusion splicer and cleaver kit
Cool Tools: Fiber Tool Kits

The days of predominately copper structured wiring are long past. Technicians are installing a growing amount of fiber optic cable in surveillance, alarm and control systems.


READ MORE
 
A Sprinkle Of This, A Dab Of That

Low Voltage Contractors, Minneapolis, opened its doors in 1982 and specialized in design/build low-voltage work from the start. It focused on fire alarm installations.



READ MORE
 
Time To Adjust

In June 2015, NFPA members met to hear arguments on motions to change the technical committee actions on a number of codes and standards, including the 2016 NFPA 72, National Fire Alarm and Signaling Code.


READ MORE
 
Keep the Security

The smart home, Connected technologies, Lifestyle services: No matter how you slice it, if you can enhance and automate the lives of residential customers, you’ll be in a good place for more business.



READ MORE

Pages