At JM Test, we understand the importance of selecting the right tool for the job, and that includes your ground resistance tester. Just like electrical and instrumentation needs vary across projects, so too do the testers best suited to tackle them. Here at JM Test, we offer a wide range of ground resistance testers for purchase and rental – from compact, handheld models to feature-packed field instruments. Whether you need a simple and affordable solution for a…
Rubber Goods Personal Protective Equipment (PPE) Storage Do’s and Don’ts
Did you know that improper storage of rubber gloves and protective equipment can increase the risk of electrical shock or equipment failure? Why is proper storage of rubber gloves and protective equipment vital? Most importantly, it’s the first line of defense against accidental electric shock. It also helps to lengthen the life of the electrical safety equipment, thereby saving money in the long run. Below are some effective ways to store your rubber…
Importance of Upper Controller Testing for Bucket Trucks
Do You Know About Testing Your Bucket Truck’s Upper Controller? If you own a bucket truck, you’ve likely heard terms like “joystick” or “ISO-Grip.” But would you recognize the term “upper controller”? Most bucket truck owners aren’t aware that these controllers, officially termed “Upper Controls with High Electric Resistance Components” by ANSI A92.2, require regular testing. The upper controller, located at the platform (or bucket), enables operators to precisely maneuver the boom with ease. Altec’s registered…
Electrical Safety Supervisors, Do you know your workers?
Electrical Safety Supervisors, Do you know your workers? Years ago, during my time at a company, I had the opportunity to work closely with a highly experienced high-voltage electrician. While he taught me many valuable lessons, I often found myself questioning some of his methods, as they seemed unsafe. Being new to the trade, I had a deep respect for high-voltage work, but certain practices in the workplace raised concerns. The manager, who had limited…
Keeping Your Distance: Determining Shock and Arc Flash Boundaries when Performing Thermography on Energized Electrical Equipment
Introduction The first instrument invented for testing electrical systems was the Megger megohmmeter patented in 1905 for evaluating insulation, arguably the most important component in an electrical system. The problem is that a megohmmeter is only effective in evaluating insulation condition in a deenergized state. Therefore, it often cannot detect conditions that can cause insulation to deteriorate or fail prematurely. Some 70 years later, thermal scanning of electrical systems was capable of testing…
Glove Testing FAQ
Glove Testing FAQ with JM Test Systems Q: How frequently are gloves supposed to be tested? A: If the pair of gloves are new, and have never been tested before, they must be tested within 12 months of being put into service, for the first time. Once the pair of gloves have been tested for the first time, whether they have been used or not, they are required…
