Combustible Gas Control Post-Fukushima Training

May 4, 2018 | News

The Severe Accidents (SA) at the Fukushima Nuclear Power Plants in 2011 have generated new interested on Combustible Gas Control.

GLSEQ’s president, Jim Gleason, notes that the hydrogen and carbon monoxide explosions at the Fukushima nuclear plants have prompted changes in regulations, standards, and regulatory positions. The Fukushima explosions were not supposed to happen. The Post-Three Mile Island (TMI) requirements for combustible gas control have proved to be incomplete.

Learn about newly updated Japanese nuclear regulations and their impact on similar regulations in the United States.

The Post-Accident Monitoring standard IEEE Standard 497 was updated in 2016 and has been endorsed by the IEC, and the U.S. NRC has drafted its endorsement as well. This standard introduced new Type F instrumentation for Severe Accidents and clarified Type C instruments for Design Basic Accident (DBA) conditions. Additionally, the U.S. NRC order 13-209 for hardened vents added instrumentation and control (I&C) requirements for combustible gas and measuring the effectiveness of the venting operation.

GLSEQ’s new Combustible Gas Control Post-Fukushima Training covers these topics along with GLSEQ’s new Severe Accident Instrumentation Line (IS-SAIL) featuring the first Type C and Type F qualified hydrogen sensor and oxygen sensor, the GLSEQ Hydrogen and Oxygen Monitoring System (HOMS). The course is offered online and can be scheduled at nuclear plant engineering or plant facilities.

The training is recommended for management, engineering, quality assurance, and maintenance personnel.

Contact Gene Gleason ( to schedule participation.