Riser Pole Arresters for Transmission Line Applications

------ Email from an ArresterFacts reader ---

Dear Sir:

We need to select an arrester for a short underground 115 kV cable system. In your paper "ArresterFacts 015" you mentioned The Transmission System Riser Pole arresters.
Can you receommend a supplier of this type of arrester?
Please send your comments,

Best Reggards
NRS

My Response

Greetings NSR,
Thank you for using ArresterWorks.com, I hope you are enjoying it.
Regarding 115kV riser pole arresters, there is no such arrester by that name in the high voltage range like there is in the medium voltage range. Standard station class or Class 2 in your case, arresters would be used. If you wish to have the best possible protection, then you can increase the arrester class to 3 or 4. The increase in class reduces the residual voltage.

When you install them, remember to keep the arrester and line terminal as close together as possible, and make sure you connect the shield of the terminal to the bottom of the arrester.

Hubbell, ABB, Siemens, Cooper, Joslyn, Tyco and most of the suppliers listed on my front page, supply these arresters since they are standard station type arresters.

Regards JJW