Energia i regulacje · 25/09/2018

NRC Issues Revised Guidance on Alternate Pressurized Thermal Shock Rule

The U.S. Nuclear Regulatory Commission (NRC) is releasing updated guidance on the Alternate Pressurized Thermal Shock Rule, allowing for the use of alternative fracture toughness requirements to protect pressurized water reactor pressure vessels from thermal shock events. This update aims to provide a clearer method for NRC staff to assess the acceptability of these requirements.