Safety engineering is an engineering discipline which assures that engineered systems provide acceptable levels of safety. It is strongly related to industrial engineering/systems engineering, and the subset system safetyengineering. Safety engineering assures that a life-critical system behaves as needed, even when components fail.

Safety engineering and reliability engineering have much in common, but safety is not reliability. If a medical device fails, it should fail safely; other alternatives will be available to the surgeon. If the engine on a single-engine aircraft fails, there is no backup. Electrical power grids are designed for both safety and reliability; telephone systems are designed for reliability, which becomes a safety issue when emergency (e.g. US "911") calls are placed.

Probabilistic risk assessment has created a close relationship between safety and reliability. Component reliability, generally defined in terms of component failure rate, and external event probability are both used in quantitative safety assessment methods such as FTA. Related probabilistic methods are used to determine system Mean Time Between Failure (MTBF), system availability, or probability of mission success or failure. Reliability analysis has a broader scope than safety analysis, in that non-critical failures are considered. On the other hand, higher failure rates are considered acceptable for non-critical systems.

Safety generally cannot be achieved through component reliability alone. Catastrophic failure probabilities of 10⁻⁹ per hour correspond to the failure rates of very simple components such as resistors or capacitors. A complex system containing hundreds or thousands of components might be able to achieve a MTBF of 10,000 to 100,000 hours, meaning it would fail at 10⁻⁴ or 10⁻⁵ per hour. If a system failure is catastrophic, usually the only practical way to achieve 10⁻⁹ per hour failure rate is through redundancy.

When adding equipment is impractical (usually because of expense), then the least expensive form of design is often "inherently fail-safe". That is, change the system design so its failure modes are not catastrophic. Inherent fail-safes are common in medical equipment, traffic and railway signals, communications equipment, and safety equipment.

Specialization of various fields in Safety Engineering

Prevention Analysis

Failure modes

Safety and Reliability

• Be in good health and able to take care of himself.

• Be older than 16 years old but younger than 60 years old.

• Abide by Chinese laws, school rules and disciplines.

• Already have a bachelor’s degree.

1. Application Form

Please upload your finished application form here.

2. Health certificate

Photocopy of notarized foreigner physical examination record (for durations of study over 6 months)

3. Photocopy of valid passport

With name, passport number & expiration date, and photo included

4. Passport photo

A recent passport-sized photo of the applicant

5. Undergraduate school transcript

6. Bachelor's degree diploma

Graduation certificate in languages other than Chinese or English should be translated into Chinese or English and be certified by notarization.

7. Two letters of recommendation

From professor or associate professor or equivalents

• Question: What is the cost of applying through ACASC?

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