Mar 04, 2020
What if a refrigeration system could exist without a mechanical compressor, oil, or the typical blended refrigerant? A totally new design that required much less electricity to operate? Components of the system consist of an inert gas and large pressure vessels connected by pipes. This mechanism would be based on thermoacoustic principles that had very few moving parts. Considering the environmental issues faced today, wouldn’t it be an amazing achievement?
Mar 04, 2020
Transformers are used when power voltages need to be changed, or transformed, to other levels. Sometimes voltages need to be increased when sending power long distances. Other times, voltages need to be decreased for equipment that uses the power. Regardless of whether the voltages are being stepped up or stepped down, the same process of changing windings is used to transform voltages to different levels.
Feb 28, 2020
The primary intent of this discussion is to explain how overcurrent protection devices are determined for single motor branch-circuits. References will be taken from the 2020 National Electrical Code (NEC). These references will apply to general single motor applications for a continuous duty NEMA Design B energy efficient motor, unless otherwise noted.
Feb 26, 2020
The California Building Standards Commission voted to adopt the 2017 National Electrical Code (NEC). The adopted codes were published on July 1, 2019, and became effective on January 1, 2020. With the adoption of the new code, there are now new requirements for the California Electrical Certification Continuing Education and California Electrical Certification Exam.
Feb 26, 2020
JADE Learning is now approved by the Rhode Island Board of Examiners for Electricians to provide electrical continuing education (CE) online. JADE Learning is the first continuing education provider to be approved for online courses making it easier for Rhode Island electricians to renew their electrical license with JADE Learning. Prior to JADE Learning’s online courses, Rhode Island electricians could only complete their CE requirements in a classroom setting.
Feb 08, 2020
3 Steps to Renew My Texas Electrical License Step 1 - Find My Electrical License Expiration Date: To begin to renew a Texas electrical license, you’ll need your Texas electrical license number and issue date. If you cannot find your electrical license, you can look it up on the Texas...
Feb 04, 2020
The combining of fuel, air and an ignition source creates combustion. This combustion process is utilized in furnaces and water heaters to heat air or water. Byproducts of combustion are carbon dioxide, water, occasionally carbon monoxide and other gases.
Feb 04, 2020
Can you do a box fill calculation at the jobsite? This is an important skill for installers and inspectors alike, since a box that is overfilled can cause a fault, arcing, or even a fire. But how do we determine if a box is overfilled in a real-world situation?
