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Conducting Hot Work Operations
Hot work permits are necessary for various activities like welding and grinding, especially in non-permissible areas or near combustible materials. Responsibilities include ensuring equipment safety, maintaining fire protection equipment, and conducting area assessments before and during hot work operations. The permit process involves site inspection, completing the permit, and retaining documentation throughout the work period.
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Conducting Hot Work Operations
- 1. Hot Work Permits NFPA 1:41 and NFPA 51B
- 2. When is apermit required? ➔welding ➔heat treating ➔grinding ➔thawing pipe ➔powder-driven fasteners ➔hot riveting ➔torch applied roofing (NFPA 1:16.6) ➔similar applications causing spark, flame, heat
- 3. Non-permissible Areas ➔unauthorizedareas ➔sprinklered buildings with impaired system ➔explosive atmospheres ➔in the presence of damaged or improperly stored equipment, tanks, containers ➔combustible dusts
- 4. Program Manager Responsibility ➔examine equipment for any defects ➔determine the presence of flammable materials ➔ensure fire protection and fire extinguishers are available ➔maintain proper fire watch ➔inspect area at least once per day and ½ hour after work is completed
- 5. Operators Responsibility ➔getapproval prior to starting hot work ➔maintain all equipment in proper working condition ➔shall cease work if unsafe condition develops ➔shall notify proper authority (fire department) ➔hot work area to be reassessed
- 6. Fire Watch PersonnelResponsibility ➔be aware of potential hazards and personnel ➔maintain safe condition ➔stop work if situation becomes unsafe ➔have fire extinguishing equipment ready ➔watch for fires in all exposed areas
- 7. Is a firewatch required? ➔combustible material within 35’ of operation ➔combustible materials easily ignited by sparks ➔wall/floor openings expose combustibles ➔combustibles adjacent to opposite side of wall/ceiling/floor and likely to be ignited
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- 9. Writing the Permit ➔general precautions ➔within 35’ of hot work ➔on walls, ceilings, or roofs ➔on enclosed equipment ➔fire watch requirements
- 10. Permit Process ➔visitthe site ➔inspect equipment ➔fill out permit ➔leave permit card on-site ➔retain top portion for permanent record ➔retain middle portion as reminder, until work is complete and final site visit made
- 11. Why Hot WorkPermits Matter