|
| Events type | Letter code | Events name |
|
| Top event | | Fire accident and explosion in oil wharf handling |
|
| Intermediate events | | Sources of ignition |
| Leakage |
| Open fire |
| Electrostatic sparks |
| Electrical sparks |
| Friction, shock sparks |
| Automobile exhaust sparks |
| Tank leak |
| Marine loading arm |
| Pipe leak |
| Electrostatic sparks on human body |
| Electrostatic sparks of oil products |
| Fracture on outside and inside of the arm |
| Body static |
| Static electricity accumulation of oil products |
|
| Basic events | | Unlawful hot work |
| Open fire on near vessels |
| Fire brought by smoking or unlawful behavior |
| Do not touch the electrostatic eliminating device before entering the field |
| Touch conductors of different voltage |
| Electrostatic sparks on chemical fiber clothes |
| Flow too fast |
| Poorly grounded |
| Oil products are mixed with water and other impurities |
| Design defects in process and devices |
| Improper electric options (such as the selection of nonexplosion-proof electrics) |
| Electrical failure |
| Operation against rules |
| Short circuit or overload |
| Insulating flange of marine loading arm malfunction (stray current sparks of vessel body) |
| Personnel wear spikes |
| Metal hosepipe, iron tools friction, or collision with ground |
| The bearings of device has not been timely maintained |
| Vehicles or equipment collide with each other |
| Vehicles entering the field has not been equipped with back-fire relief valve |
| Back-fire relief valve of vehicles malfunction |
| Valve damaged |
| Safety accessory abnormal |
| Corrosion leak |
| Fracture and leakage resulted from uneven settlement and adverse natural conditions |
| Excessive tank filling |
| The interface is not tight enough |
| Poor natural conditions of typhoon and others |
| Strike of mooring rope |
| Pressure, temperature too high |
| During loading and unloading operations, ship displacement over limit |
| External shocks from vehicles, machines, and so forth |
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