Fire barrier problems - part 1

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Nuclear News (La Grange Park, Illinois); (United States)

OSTI ID:6004372

Verna, B J

In previous issues, Nuclear News has covered the Nuclear Regulatory Commission's concerns with the adequacy of a fire barrier system called Thermo-Lag 330. Ralph Cummings of Consultants to Management, who has been working in this area, informed me that this has been and will continue to be a very significant problem for the nuclear power industry, and he suggested I consider the subject for a column series. He was correct; well over half of the plants in the United States have installed Thermo-Lag 330 and their investigative, testing, analysis, replacement, and fire watch efforts will result in significant time and cost expenditures. The NRC has been investigating this problem for more than three years and has issued numerous bulletins and information notices, and one generic letter. The basic concern has to do with the material's ability to hold up to a fire for the rated time period, but there are also side issues that involve material installation techniques, ampacity deratings, fire test results, etc. Thermo-Lag 330 is manufactured by Thermal Science, Inc. (TSI).

• OSTI ID: 6004372
• Journal Information: Nuclear News (La Grange Park, Illinois); (United States), Journal Name: Nuclear News (La Grange Park, Illinois); (United States) Vol. 36:3; ISSN NUNWA8; ISSN 0029-5574
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220504* -- Nuclear Reactor Technology-- Environmental Aspects-- Design Basis & Hypothetical Accidents-- (1992-)
FIRE PREVENTION
LICENSING REGULATIONS
MANAGEMENT
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
POWER PLANTS
REGULATIONS
SAFETY
THERMAL INSULATION
THERMAL POWER PLANTS
US NRC
US ORGANIZATIONS