factor of safety
factor by which an engineered system's capacity is increased over the expected requirement to ensure safety in the face of error or uncertainty
en-US/ˈfæktɚ ʌv ˈseɪfti/
en-GB/ˈfæktə əv ˈseɪftɪ/
factor by which an engineered system's capacity is increased over the expected requirement to ensure safety in the face of error or uncertainty