1. Rev. 1 © Chevron 2009 Hot Work Awareness Plus

2. Rev. 1 © Chevron 2009 2 Training Objectives  To explain the type of work which may constitute Hot Work.  To understand controls that should be in place whenever hot work is performed.  To describe the functions of a fire watch.  To provide details on where additional information can be obtained.

3. Rev. 1 © Chevron 2009 3 Hot Work  Hot work is any activity that involves a source of ignition, or where sufficient heat may be generated to ignite flammable or combustible materials.  This includes (but is not limited to) any type of open flame (e.g. torches, etc), arc welding, arc gouging, Grinding, sand blasting or high pressure water jetting, use of electrical tools, Battery powered instruments that are not intrinsically safe.  And, the use of any tools, etc that can produce heat sufficient to be an ignition source.

4. Rev. 1 © Chevron 2009 4 Typical Hot Work Applications  Welding  Acetylene or gas cutting or burning  Soldering  Use of Jack Hammers to break concrete  Grinding  Metal chipping  Use of any type of open flames  Use of non-explosion proof electrical equipment  Opening of live electrical panels within a hazardous area  Use of motorized machinery in a hazardous area  Personal electrical/electronic devices (e.g. cameras, computers, pagers, etc.)  Abrasion blasting

5. Rev. 1 © Chevron 2009 5 Auto-ignition  Many flammable products handled at facilities do not require an open flame or spark to ignite them. For such products any energy source that creates sufficient temperature can ignite a fuel/air mixture which is within the flammable range.  If temperatures reach a fuel sources auto-ignition temperature it can ignite (e.g. a hot engine exhaust, an electrical element creating high temperature, or a piece of hot steel). Some typical auto-ignition temperature of our common products are: Gasoline390°C (734°F) Diesel350°C (662°F) Kerosene380°C (716°F) (note – auto-ignition temperature will vary and typically will cover a range of temperatures)

6. Rev. 1 © Chevron 2009 6 Hot Work Form  Hot work can only be done within a hazardous classified after a Hot Work form has been issued by a qualified work Permit Issuer.  A valid General Work Permit form to in place along with the Hot Work Form.  All conditions, requirements and controls listed on any associated permit forms, etc must be satisfied as well. (e.g. General Work Permit, Confined Space Entry Form and Job Safety Analysis)

7. Rev. 1 © Chevron 2009 7 Hot Work Form (cont’d) Hot work form and General Work Permit:  Must be posted at the worksite  May be extended to 16hrs maximum within a work day or renewed over 6 consecutive days  Must be revalidated if site conditions change or work is stopped for more than 30 minutes*  Must be retained for a minimum of 90 days * Refer to standard for conditions requirements for re-evaluation of work permit/forms and conditions for a permit’s cancellation

8. Rev. 1 © Chevron 2009 8 Control Measures for Hot Work The following control measures must be observed whenever hot work is required in a hazardous/classified area:  A pre-job risk assessment is required to identify potential hazards and determine controls to make the hot work safe.  If the job involving hot work is determined to be high risk or the hot work is in a classified area, a JSA is required.  Gas testing must be conducted 15m radius around hot work area by a qualified gas tester.  No permit form can be issued for hot work if % LEL is >0 and/or there is residue of hydrocarbon.  Hot work must be stopped and the permit withdrawn if % LEL when gas tested is > 0%.  Continuous gas monitoring shall be considered for the duration of hot work if the Permit Issuer warrants it.

9. Rev. 1 © Chevron 2009 9  The Permit Holder must hold a Safety Briefing is with the workers briefing them on the potential hazards and permit conditions/requirements  The Permit Holder, as specified on the hot work form, shall remain on site until all hot work is completed, and the hot work permit is withdrawn.  A qualified fire watch is required to be at the hot work site during the work and remain until 30 minutes after the hot work has been completed.  Work shall immediately stop if conditions change resulting in the potential for flammable vapors.  No hot work shall be performed while product transfer activities are occurring in the same area. Control Measures for Hot Work cont’d

10. Rev. 1 © Chevron 2009 10  Barricade around the hot work area  Bond all metals that could be a source of static discharge and provide a ground  All drains and sumps within 15m (50 feet) that may potentially contain hydrocarbon, or hydrocarbon vapor are to be covered.  Positively isolate all vessels or lines containing flammable or combustible  Any combustible materials that cannot be removed from the area shall be suitably protected by wetting down or other suitable means (e.g. long grass).  Adequate fire fighting equipment shall be available at the work site while hot work is being performed. Control Measures for Hot Work cont’d

11. Rev. 1 © Chevron 2009 11 Duties of the Fire Watch  Check to ensure that a gas test has been carried out and results are satisfactory (LEL 0%)  Keep diligent watch for leaks, fires and incidents in the general area.  A fire watch cannot be assigned or perform any other duties at the job site.  Ensure fire extinguishing equipment is serviceable and available  Inspect the job site prior to hot work activities to ensure combustibles are removed or covered with fire retardant materials.  Watch for fire at the worksite and in all exposed areas

12. Rev. 1 © Chevron 2009 12 Duties of the Fire Watch (cont’d)  Stop the Hot work and any other work should any safety hazard be detected.  Sound the alarm in the event of a fire.  Attempt to extinguish the fire only when it is safe to do so.  Maintain watch in the hot work area for at least 30 minutes after completion of hot work.

13. Rev. 1 © Chevron 2009 13 Hot Work - Additional Information For additional details on hot work requirements refer to:  Your local/regional operating procedures  Your local Health Environment Safety personnel