Spotlight Projects:

The Hopper Engineering Associates team provides practical and exciting solutions to unique problems in several industries. To showcase our recent work we choose a project of the month. An archive of previous winners can be found here.

September 2014 Project:

Lightning Arrester
Lightning Arrester

New lightning arresters are required at a power plant. HEA was approached to perform an IEEE seismic qualification evaluation to demonstrate dynamic performance compatibility for as-tested versus as-installed configuration.


Our engineering team benchmarked a tested lightning arrester and the stand despite the unusual material and geometry using a structural modeling program. The as-installed arrester support system are then modeled and the seismic accelerations are extracted. The increases are compared against the margin that existed in the test report to demonstrate that the different stand does not invalidate the expected dynamic performance of the arrester.

HEA has completed numerous jobs similar to the one shown above (Similar Projects)