Underground enclosures, commonly call handholes, pits, or vaults, come in a variety of shapes and...
In physics, the glow and audible event occurring when an insulator is exposed to excessive voltages...
To support design and development activities, we maintain a fully equipped electrical and...
There are four common pilot protection schemes for line protection used today: (1) Direct...
Rising water can damage or weaken existing transmission line and substation utility foundations. In...
Toughened glass bell insulators are easily identified through the application of color bands on the...
In Alaska, the 115-kV Quartz Creek transmission line connects two hydroelectric dams on the Kenai...
All Hubbell Power Systems surge arresters are factory tested according to IEEE C62.11 and IEC...
THE IMPORTANCE OF EQUIPMENT REPOSITIONING In recent years, the U.S. has been faced with several...
Consumer demands for reliable electric power have continued to increase over the years with...
There are seven key deep foundation solutions: helical piles, micropiles, driven piles, rammed...
All bolted deadends are rated 40% of the conductor RBS. Bolted deadends can be used in slack span...
Lightning protection devices date back to the mid 1700’s. Early technology, such as the lightning...
While heat is generally the enemy of power system transmission lines, strong winter weather brings...
Follow the directions, recommended work practices and be safe when installing line arresters....