Table 2 Four types of risk factors and accidents.

From: A quantitative analysis method based on network evolution for risk factors of safety production in chemical enterprises

Type

Risk factor (No.)

Human Factor (HF)

Personnel failure to detect alarms (HF01), Construction with excessive humidity(HF02),

Improper emergency response by personnel (HF03), Inadequate personnel supervision (HF04),

Violation of speeding (HF05), Personnel entering inappropriate areas for work (HF06),

Overtime in special time period (HF07),

Failure to comply with the safety procedures of the organization (HF08),

Personnel fatigue operation (HF09), Personnel inspection (patrol inspection) is not in place(HF10),

Inadequate protection (HF11), Illegal/irregular operations(HF12),

Personnel failed to operate according to requirements (HF13),

Operators did not obtain qualification certificates (HF14),

Fall from height (HF15), Falling(HF16),

Inadequate risk analysis (HF17), Inadequate awareness of job risk protection (HF18),

Unfavorable observation (HF19), Decision-making errors (HF20),

Violation of operating procedures (HF21), Missed observation (HF22),

No tickets(HF23), Missed observation Reasoning errors (HF24)

Material and Machine

Condition (MC)

Water ingress of critical components (MC01), Valves not closed (MC02),

Critical components freezing (MC03), Excessive current (MC04),

Short circuit (MC05), Change in catalyst activity (MC06),

Insulation damage (MC07), Instability and collapse of isolated nets (MC08), Tripping (MC09),

Jumping stop (MC10), Unit surge (MC11), Valve beyond control range (MC12),

Cooling of key components (MC13), Failure of key components (MC14), Poor contact (MC15),

Flash fire (MC16), Failure to alarm in a timely manner (MC17)

Management Factor (MF)

Mutually prohibited three-dimensional cross operation (MF01),

JSA failure to identify potential risks of operation (MF02),

Process modification (MF03), Contractors entering the site without safety training (MF04),

Insufficient safety training organized (MF05),

Unreasonable construction organization (MF06),

Inadequate reserve management of organizational protective equipment (MF07)

Environmental Condition (EC)

Chemical leakage and diffusion (EC01), Overheating (EC02), Icing (EC03),

Thunderstorm weather (EC04), Affects the temperature stability of anti-static agents (EC05),

Operation on isolated nets (EC06), Rainstorm weather (EC07), External power grid failure (EC08),

Rainy and humid weather (EC09), Sparks (EC10), Condensate generated (EC11),

Key equipment exposed to rain (EC12), Electric conduction (EC13),

Large temperature difference between day and night (EC14),

Worksite without safety production conditions (EC15),

Surrounding green plants not cleaned in a timely manner (EC16),

External power grid shaking (EC17), High temperature (EC18),

Rising surface temperature of pipelines (EC19), Low temperature (EC20)

Accident (A)

Oil leakage (A01), Excessive emissions (A02), Pressure holding (A03),

Abnormal fluctuations (A04), Fire (A05), Cable head failure (A06),

Valve mistakenly closed (A07), Traffic accident (A08), Environmental pollution (A09),

Poisoning (A10), Death (A11), Safety valve tripping (A12),

Product quality failure (A13), Device shutdown (A14), Device failure (A15),

Personnel injury (A16), Critical component defects (A17), Leakage (A18), Can leakage (A19)