safety factor


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safety factor

[′sāf·tē ‚fak·tər]
(electricity)
The amount of load, above the normal operating rating, that a device can handle without failure.
(mechanics)
(ordnance)
Increase in range or elevation that must be set on a gun so that friendly troops, over whose heads fire is to be delivered, will not be endangered.
Overload factor in design to ensure safe operation.

factor of safety, safety factor

1. The ratio of the ultimate stress of a structure or pressure vessel to the design working stress.
2. The ratio of the ultimate breaking strength of a member or piece of material or equipment to the actual working stress or safe load when in use.

safety factor

The ratio of the maximum load a structure is designed to withstand to the maximum load it will be subjected to during a normal operating regime.
References in periodicals archive ?
The results for the safety factors demonstrated that respondents were concerned about UPM pedestrian environment safety.
Considering uncertainties associated with ASET and RSET, the safety factor is treated as a random variable, rather than a traditional deterministic variable.
For LCR gears without crack, conventional calculation procedures of safety factors given in DIN 3990 was used.
Tensile safety factor = Force to fail/Force to use = 45/25 = 1.
Last, the EWG argued that the use of human test results derived solely in adults provides no data on developmental toxicity and thus fails to fulfill the intent of the extra 10-fold child-protective safety factor required by FQPA (EWG 1999).
Nevertheless, the committee expressed concern that the standard 100-fold safety factor may not always be sufficient to account for unique susceptibilities at particularly sensitive stages of early development.
Collectively, this increased understanding could reduce the need to apply safety factors as uncertainties associated with various aspects of the risk assessment process are reduced [e.
I won't vote to go forward if the safety factor is in question, and I don't want to commit the district to 50 years of mitigation costs at the expense of every other school in the district.
If data on children's unique susceptibilities or exposures are not available, an additional safety factor must be applied.
Nowhere in our paper, however, do we argue that child-protective safety factors should be subject to cost--benefit analysis, nor do we suggest "that a child-protective safety factor should not be added to risk assessment unless it can be directly shown to confer benefit," as Landrigan et al.
And there's an obvious, even understandable, safety factor in skipping such real Chinese-preferred denizens as jellyfish, sea cucumber and eel, and concentrating on more amenable water residents such as shrimp, salmon and Chilean sea bass.
It made you think about the safety factor, with a crazed person loose.