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https://www.cdc.gov/niosh/docs/2004-101/chklists/n54ele~1.htm Personnel Protection, Electrical Work - Safety Checklist Program for Schools | NIOSH | CDC It applies to persons who are at risk of electrical shock. electrical work safety for schools personnel protection https://www.info.gov.hk/gia/general/202305/17/P2023051700310p.htm Employers, contractors and employees should be aware of electrical safety at work during rainstorm