AC Motors Explained
We got a request for an explanation of how AC Motors work. I admit, even for an electrical engineer this can be a complex question. This...
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The Blog
Welcome to the DES Blog. We hope you enjoy our posts. Please feel free to reach out to us if you have any questions or comments.
NOTE: Content within this blog is for informational and/or entertainment purposes only.
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- Mar 27, 2018
- 1 min
CAT5/6: Good Cable Bad Cable
Counterfeit electrical equipment is all the rage now a days. Here is a quick video on what to look for with CAT5/6 cables to assure you...
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- Mar 27, 2018
- 1 min
What Does Asbestos Look Like?
Check out this slide show we found with images of Asbestos containing material. Asbestos can take many forms. Please contact DES or...
35 views1 comment
- Mar 27, 2018
- 1 min
Zinsco Breakers
Most everyone has heard of the dangers with Federal Pacific Breakers (FPE). Not everyone has heard of the dangers of Zinsco breakers....
47 views2 comments
- Mar 22, 2018
- 1 min
What is a Shunt
Excellent video from Galco on the explanation on Electrical Shunts. Feel free to contact us for any of your electrical questions!
29 views1 comment
- Mar 22, 2018
- 1 min
Eddy Current Drive
We wanted to share this short video of how Eddy Current Drives work. This technology has been largely replaced by VFDs, though sometimes...
27 views0 comments
- Mar 22, 2018
- 1 min
Reading a Motor Nameplate
Check out this short video from Galco for how to read a motor nameplate. Nameplates are an important piece of information that can...
22 views0 comments
- Mar 21, 2018
- 1 min
LED Lights Flickering
We have had a lot of questions from the electricians and contractors we support regarding LED bulbs flickering after installation. We...
54 views1 comment
- Mar 15, 2018
- 1 min
NEMA Ratings Explained
We have been getting a lot of questions regarding NEMA ratings lately. We found this excellent video from Galco that gives a brief...
26 views0 comments
- Mar 8, 2018
- 1 min
Lighting and Safety
Whether it is an elderly grandmother walking to her car in the grocery store parking lot or a worker on an assembly line, lighting is an...
26 views0 comments
- Mar 8, 2018
- 1 min
Phase Imbalance on Motors
Phase imbalance can significantly reduce the life of electrical equipment. Check out this short video by Galco regarding phase imbalance...
22 views0 comments
- Mar 8, 2018
- 1 min
Cable and Pipe Tracing
Take a look at this excellent short video we found on cable tracing. As a reminder SC provides free underground utility identification...
12 views0 comments
- Feb 26, 2018
- 1 min
Lightning Strike Map
The Carolinas are prone to lightning strikes. For live strike events see the link below: https://www.lightningmaps.org/blitzortung/americ...
17 views0 comments
- Feb 26, 2018
- 1 min
Arc Flash PPE
An excellent short info-graphic on Arc Flash PPE, with links to handy quick reference guides. As a remind DES provides Arc Flash...
12 views0 comments
- Feb 23, 2018
- 1 min
Beware of Counterfeits
If a deal seems too good to be true it likely is. There is a large amount of counterfeit electrical equipment, ranging from breakers to...
37 views0 comments
- Feb 23, 2018
- 1 min
Federal Pacific Breakers
Excellent video showing a teardown of a FPE breaker. These breakers have a high failure rate and are notoriously dangerous. See if you...
26 views0 comments
- Feb 23, 2018
- 1 min
Grounding and Ground Currents
Mike Holt gives an excellent presentation on grounding, and why it may not always be for your protection.
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