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Confined Space Entry – Underground Utility Vault Inspection

Industry: Oil & Gas · Country: Saudi Arabia · Location: Utility Corridor B – Refinery Complex, Jubail

Risk assessment for entry into underground utility vaults for routine inspection and maintenance of electrical and instrumentation cables. Vaults are classified as permit-required confined spaces due to potential for oxygen deficiency and toxic gas accumulation.

Task Steps

1. Obtain confined space entry permit from area authority
2. Atmospheric testing for O2, LEL, H2S, and CO
3. Set up ventilation equipment and verify adequate airflow
4. Assign trained attendant at entry point
5. Entrant dons appropriate PPE including SCBA if required
6. Conduct inspection and maintenance tasks
7. Communicate continuously with attendant
8. Exit vault, close permit, document findings

Risk Assessment (1 risks)