Lightning and surge protection in emissions monitoring

摘要

At any given moment, there are over 1,800 thunderstorms occurring. The 1,000-ft stacks at electrical power generating plants are huge lightning rods reaching up into the sky. The very same stacks, selective catalytic reaction (SCR) beds, ammonia injectors, and precipitators, only now carrying expensive nitrogen oxide/sulfur dioxide (NO_(x)/SO_(2)) emissions monitoring equipment and associated power and instrumentation cabling, take on nature's fury in the form of potentially 200,000-ampere bolts of lightning.