Event Report: Deficiency found in fire safety at Alabama nuke

The Nuclear Regulatory Commission’s Event Reports contain an item about a potential fire safety problem at Browns Ferry in Alabama. A safety inspection founded an ammeter that “is not fused or otherwise protected against an electrical fault.” The safety significance: “….in a scenario where the 250 VDC Battery Board system negative becomes grounded at the same time the ammeter cable 1B11 has a fault to ground, the cable may not be protected and the cable could auto-ignite anywhere along the cable’s length from the ground fault location back to the battery source. For example, in a Fire Area 16 (Control Bay) scenario, these ground faults could result in a fire being spread from Fire Area 16 to Fire Area 17 (Battery Board 1).”

You would expect that this nuclear plant would be particularly sensitive to this issue: In 1975, a fire closed Unit 1 at Browns Ferry for a year.


About Robert Singleton

By day, I work for a call center. In my spare time, I try to save my hometown (and planet) from a nearly constant onslaught of greedheads, lunatics and land developers. I live in a fictional town called Austin, Texas, where I go to way too many meetings.
This entry was posted in Event Reports, Nuclear Regulatory Commission, Reactor problems and tagged , , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s