Electrical safety is not a matter to be taken lightly, especially in the workplace. When proper precautions are not taken, electrical hazards may occur resulting in serious injury or even death.
There used to be a time when things were simple. There were only six channels to choose from on television (and all signals came through an antenna), telephone lines were simply wired and there was no such thing as the internet. Maybe I am exaggerating, but the truth is, people – more specifically technicians – just didn’t need to know as much as they do now and certainly didn’t need very specialized training or tools to do their jobs.
Soil resistivity testing is a standardized means of measuring and evaluating soil for its electrical properties. It is most useful in grounding, as a means of gathering data that is used in designing an effective ground electrode. This provides a valuable alternative to the drive-and-test method where ground rods are coupled and driven deeper, or added to a grid structure, and tested for resistance after each implementation until the required or specified resistance is achieved. Resistivity measurements can be entered into calculations along with the desired ground resistance and the complete electrode thereby designed before installation begins.
I hear the word time domain reflectometer (TDR) and for some reason visions of the DeLorean time machine fitted with a flux capacitor comes to mind, you know, needing to generate 1.21 ‘gigawatts’ of electricity. A time domain reflectometer just sounds like something Doc Brown would have used to travel back to the future.
Megger recently returned from the EASA (Electrical Apparatus Service Association) show in Boston, MA. EASA’s goal is to provide members with a means of keeping up to date on materials, equipment, and state-of-the-art technology- and the show did just that. Most of the interest at the Megger booth was in insulation and DLRO testers used for motor testing. The 15kV insulation resistance tester was popular amongst those testing large motors because of its ability to measure motors and generators above 34,500 V and equipment rated above 35 kV.
Megger recently supplied Mr. T Spooling with a CFL535G TDR. This handheld time domain reflectometer easily locates fault on mixed pair metallic cables. The CFL535G can test the capabilities of connections and locate faults for up to 12 miles.
Jeff Jowett, Megger’s senior applications engineer, is quoted in the May article “Cool Tools: Using Electrical Testers Safely” for Electrical Contractor Magazine.
Megger recently donated equipment to GateWay Community College in Phoenix, AZ.The college will be using the hand tachometers in the Air Conditioning, Refrigeration and Facilities program.
Wind turbines are increasingly becoming an important source of renewable energy and are being used by several countries as a way to reduce their reliance on fossil fuels.
Megger raised close to $4,000 for Phoenix Children’s Hospital Foundation on Saturday, January 25 at its 13th annual Megger Distributor Golf Event. The outing, which took place at the Lakes of Ahawatukee Golf Course in Phoenix, Arizona, is held each year in honor of 17 year old cancer graduate, Tyler Danner.