Tradução de "lockdown"

Avatar do usuário Andrezzatkm 4820 1 8 105
Philadelphia Public Schools were on “lockdown” for less than five minutes Thursday morning after a loud bang was heard.

Superintendent Lisa Hull said a fuse went out on a power line at the corner of Wilson Street and Byrd Avenue causing the noise.

“For safety sake we went on lockdown,” she said. “We had practiced this before and everything went as planned.”
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Avatar do usuário PPAULO 39205 6 32 684
"A lockdown is an emergency protocol to prevent people or information leaving or entering, which usually can only be ordered by someone in command." Perhaps it was some exercise that lasted ten minutes.

Or eletricity was cut for ten minutes (somehow a planned/controlled event), to investigate something, etc.
http://www.abc.net.au/news/2016-01-25/s ... ay/7113946