国際安全衛生センタートップ >
事例研究 >
Examples of Hazard Prediction Training
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| Replacement of piping |
| A worker is tightening a bolt of hydraulic oil piping with a single ended spanner with an extension pipe. |
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| Various Points of Hazard | |
| 1. | The piping diameter is much larger than the grip of the spanner. It may slip off and the worker may be thrown down with his own force. |
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