SURGE ARRESTERS ARE OFTEN OVERLOOKED WHEN PERFORMING POWER FACTOR TESTS on transformers, breakers and other apparatus in a substation. Oftentimes, the testers are aware of how a transformer or a ...

Thomas & Betts’ metal-oxide surge arrestors include the following features: IEEE 386 interfaces provide convenient energized connection with other 200A loadbreak or deadbreak components EPDM molded ...

The primary defense to protect electrical equipment from over-voltages is surge arresters. These necessary devices hold metal oxide varistors (MOVs) and are rapid response protectors against voltage ...

NexTek, Inc., conditioning products, announces a new family of coaxial lightning arrestors designed to operate at frequencies up to 11 GHz. The SurgeGuard PTC-TNF-SAF-20G is a gas discharge tube-type ...

Geneva, Switzerland — STMicroelectronics has expanded its TRISIL crowbar-type diode family with the introduction of the SMP80MC surge arrestors. These devices are designed to protect ADSL/VDSL modems ...

The National Electrical Manufacturers Association (NEMA), on behalf of its Surge Arresters Section, has published six guides and accompanying videos on arresters. These include four guides on ...

The NEC distinguishes between surge arresters and transient voltage surge suppressors (TVSSs), yet both provide surge protection. What's the difference between them? Surge arresters generally apply to ...

Okay, I've found out from PolyPhaser that the lightning arrestors on the network referred to in this thread I posted recently were *not* installed correctly. The current setup has the towers grounded ...

UPDATE: 5/23/25 2:00 pm update - "A lightning arrestor on the transmission line that brings power to our Neville and Mouton substations did it’s job. Lightning struck the transmission line very near ...

The SurgeGuard PTR0NF7AF gas tube lightning arrestors protect coaxial lines from transients while enabling a convenient transition from semi-rigid or corrugated cables to flexible or braided jumpers.

Lightning is some nasty stuff. Luckily, it doesn’t have a very long lifespan. [BigClive] decided to tear down an 11KV lighting arrestor used in power distribution systems. The fiberglass core has ...

“Object Lessons” is a feature that appears every few weeks in the Appeal-Democrat, featuring historic artifacts that help tell the history of Yuba-Sutter. Suggestions? Email vcatlin@appealdemocrat.com ...