"safety perimeter" is a correct and usable phrase in written English.
It refers to a designated area around something that serves to protect people or objects from potential harm or danger. It is typically used in situations where boundaries need to be established to ensure safety. Example: In order to ensure the safety of workers, a safety perimeter has been established around the construction site. Anyone without proper authorization is not allowed to enter this area.
When in August 2013 blasters demolished a disused power plant in Bakersfield, California, debris was hurled beyond a safety perimeter about 300 metres away.
At teatime, the Prime Minister, Naoto Kan, announces to millions of Japanese that the safety perimeter has been extended to 20km.
That has deepened anxieties in Japan and around the world and led the United States government to take the extraordinary step of announcing that the damage to at least one of the crippled reactors may be far worse than Tokyo had admitted — and urging Americans there to move further away from the official safety perimeter.
20 25: Canadian police say the downtown Ottawa "safety perimeter" has now been lifted and "there no longer exists a threat to public safety in the area".
That advice conflicted with a safety perimeter of 30 km established by the Japanese government, and drew harsh criticism from a Japanese science policy analyst attending the forum.
A safety perimeter around downtown Ottawa was lifted by police later on Wednesday.
In Washington, some sidewalks are already protected because they fall within the safety perimeters around federal buildings or monuments.
Safety perimeters are a lot more intense on tractors though; because their center of gravity can get off easily, the potential for them to tip over is pretty great.
Many experts are skeptical about the latest findings, and doctors appear to be in no rush to set age guidelines or safety perimeters for would-be fathers, content instead to issue vague sooner-rather-than-later warnings.
Borders are conceived as safety perimeters, yet they often contribute to the instability that drives armed conflict.
For safety reasons perimeter ozone concentrations were monitored with a UV photometer and kept below 0.05 ppm.
