Confined Space Entry SAF 310 00 CONFINED SPACE

Confined Space Entry SAF 310. 00 CONFINED SPACE ENTRY

Confined Space Entry SAF 310. 00 Designated Competent Person IT IS NOT ENOUGH TO HAVE A QUICK RUN THROUGH OF THE TEST METER, SWITCH IT ON THEN GO AND TEST AN ATMOSPHERE THE DESIGNATED COMPETENT PERSON MUST UNDERSTAND HOW, WHY AND WHAT FOR, WHEN TESTING ATMOSPHERE FOR CSE.

Confined Space Entry SAF 310. 00 WHAT IS A CONFINED SPACE? 3

Confined Space Entry SAF 310. 00 What is a Confined Space? A space that: Is large enough and so configured that an employee can enter bodily and perform work; l Has limited or restricted means of entry or exit; l Is not designed for continuous human occupancy. l 4

Confined Space Entry SAF 310. 00 Examples of Confined Spaces: l l l l Tanks Manholes Boilers Furnaces Sewers Silos Hoppers l l l l Vaults Pipes Trenches Tunnels Ducts Bins Pits

Confined Space Entry SAF 310. 00 EXAMPLES OF CONFINED SPACES ON A DRILLING RIG 1 2 4 9 1 - Mud Pits 4 - Drillwater Tank 7 - Bulk Tanks 5 3 6 7 8 9 2 - Crane Pedestals 5 - Fuel Tanks 8 - Preload Tanks 3 - Potwater Tank 6 - Ballast Tanks 9 – Spud Cans

Confined Space Entry SAF 310. 00 POTENTIAL HAZARDS? l Oxygen Deficiency/Enrichment l – – – <19. 5% or >22. 0% oxygen concentration l Combustibles – – – Methane Hydrogen Acetylene Propane Gasoline fumes Toxic Materials l l Carbon Monoxide Hydrogen Sulfide Welding fumes Corrosives Electricity Mechanical Hazards – Mixers – Sharp Edges

Confined Space Entry SAF 310. 00 WHY DO WE TEST THE AIR? OVER THE YEARS PEOPLE HAVE DIED NEEDLESSLY WHILE WORKING IN CONFINED SPACES. WHY HAS THIS HAPPENED?

Confined Space Entry SAF 310. 00 WHY? NOT TESTING THE ATMOSPHERE BEFORE ENTERING THE SPACE IGNORANCE, COMPLACENCY, IN A HURRY, TAKES LONGER TO DO THE TEST THAN TO DO THE JOB.

Confined Space Entry SAF 310. 00 ENTRY The act by which a person intentionally passes through an opening into a permit required confined space. l Any part of the body passing through the opening is considered entry. l 10

Confined Space Entry SAF 310. 00 IDLH IMMEDIATELY DANGEROUS TO LIFE OR HEALTH l Any condition which poses an immediate threat to the health or life of an entrant, or; l Would cause irreversible adverse health effects, or; l Would interfere with an individual’s ability to escape unaided from a permit space. l 11

Confined Space Entry SAF 310. 00 ENTRANT l The employee(s) who will physically enter the confined space to perform the work. 12

Confined Space Entry SAF 310. 00 ATTENDANT (TANK WATCHMAN) The employee who remains outside the confined space and monitors the entrant(s); guards the space against unauthorized entry; warns the entrants of any unusual conditions; and summons the rescue personnel if needed. 13

Confined Space Entry SAF 310. 00 Permit-Required Confined Space l A Permit-Required Confined Space is a confined space that has one or more of the following characteristics: l l Contains or has the potential to contain a hazardous atmosphere; Contains a material that has the potential for engulfing an entrant; Has an internal configuration such that an entrant could become trapped or asphyxiated; or Contains any other serious safety or health hazard. 14

Confined Space Entry SAF 310. 00 ISSUING AUTHORITY l l The employee responsible for the area in which the task is being carried out. Issuing Authorities are designated by the OIM/MIC. 15

Confined Space Entry SAF 310. 00 PERFORMING AUTHORITY l The person directly responsible for the work being performed in the confined space. This can be the Team Leader, Foreman, or other person qualified by training and experience. 16

Confined Space Entry SAF 310. 00 Confined Space Entry Procedure Isolate the space l Ventilate the space l Test the atmosphere l Complete the permit & Entry Certificate l Conduct the Toolbox Talk (Using PAR) l Enter the space l Re-Test the atmosphere as required by Policy l 17

Confined Space Entry SAF 310. 00 Isolate the Space from all hazards l l Close Valves – Double block & bleed, or – Blank flange Empty the Space – Depressurize, vent & drain Lockout/Tagout Equipment – Electrical sources – Rotating/reciprocating parts – Hazardous materials Clean residue from the space 18

Confined Space Entry SAF 310. 00 Ventilate the Space l Use mechanical ventilation – Fans – Air horns l Ventilate at the rate of at least four (4) volumes per hour – Larger spaces require more ventilation l Make sure air the supply is not contaminated – Ventilation air supply must be from fresh air uncontaminated with flammables, toxins, etc. 19

Confined Space Entry SAF 310. 00 Ventilate the Space l Check where the supplied air is coming from l Check where the vented air is going to – are we creating another hazard? ? ? 20

Confined Space Entry SAF 310. 00 Complete Entry Permit Form l l l l Permit must be correctly and completely filled out prior to entry. The Risk Assessment (PAR) must be completed and understood by the participants Permit must be authorised by The Responsible Person’s signature to be valid. No entry is allowed without a valid permit. Permits are valid for up to 12 hours. When work is completed, permit and PAR forms should be returned to safety dept. Cancelled permits must be kept on file as required by Policy 21

Confined Space Entry SAF 310. 00 Conduct a Pre-Task (Toolbox Talk) Briefing l Entire crew must attend – Attendants, entry supervisor Review hazards of entry and work (PAR) l Review PPE l Review the procedure for contacting rescue l – verify a proven rescue plan is available l Complete the permit 22

Confined Space Entry SAF 310. 00 NOTE: l Any time a limit is exceeded, no matter what the reason, all personnel shall immediately exit the space, and no others shall enter until atmospheric conditions are returned to safe levels. 23

Confined Space Entry SAF 310. 00 Testing the Atmosphere In this order: l Check for Oxygen Content: – At least 19. 5% and less than 22. % l Check for Combustible Gasses: – Less than 0% of the LEL (Lower Explosive Limit) – Surrounding areas, less than 10% of the LEL l Check for Toxic Gasses: – Carbon Monoxide max 25 ppm – H 2 S max 5 ppm – or any other hazardous materials as determined by 24 the use of the space.

Confined Space Entry SAF 310. 00 Atmosphere Testing Shall Be Performed: Prior to every entry when the space is vacant; l After a 10 minute ventilation period (if ventilation is necessary); l At least every 2 hours by the Designated Competent Person (Certified Gas Tester) l More frequently, if conditions or suspicions warrant. 25 l

Confined Space Entry SAF 310. 00 Always test the air at various levels to be sure that the entire space is safe. Good air near the opening does NOT mean there is good air at the bottom! Good Air Poor Air Deadly Air 26

Confined Space Entry SAF 310. 00 Enter the Space and Proceed with work: l l An attendant shall be posted near the entrance for the duration of the work. He shall be in constant communication with the entrants while the job is in progress. All entrants shall sign the sign-in log when entering the space and sign out when exiting. The attendant shall maintain the permit and sign in log for the duration of the work. The Attendant will have NO OTHER DUTIES 27

Confined Space Entry SAF 310. 00 When the Job is Complete: Remove all personnel, tools, and debris from the space. Sign off the log. l Close the space. l Cancel the permit. l Review the job with the supervisor (new hazards identified, problems, others, etc. ) l 28

Confined Space Entry SAF 310. 00 Attendant Responsibilities • To monitor entrants during the job and during entry & exit to help insure their safety. • The attendant may not abandon his post for any reason while personnel are in the space unless relieved by another qualified attendant. • • • To monitor atmospheric conditions in the space prior to and during entry. To control access to the confined space. To summon emergency assistance as needed. To assess hazards in and around the space, and take action on the same. To keep records of confined space work, such as air test results, personnel entry/exit, etc. 29

Confined Space Entry SAF 310. 00 Entrant Responsibilities • • • To ensure that the space has been adequately ventilated, isolated, emptied, or otherwise made safe for entry. To immediately exit a space, without question, upon word of the attendant, no matter what the reason. To follow all safety rules and procedures that apply to the job. To be familiar with the work to be performed and the procedures that apply to the job. To use the appropriate PPE whenever necessary. 30

Confined Space Entry SAF 310. 00 Supervisor Responsibilities • • • To ensure adequate protection is provided to the entrants by verifying adequate lockout/tagout and that all hazards are securely isolated. To support the attendant’s authority in controlling access to a confined space. To verify that all personnel have exited prior to closing the space. To ensure that all personnel involved are aware of the hazards associated with the confined space. To ensure that rescue services are available prior to entry. 31

Confined Space Entry SAF 310. 00 Rescue Plans PRIOR to entering a Confined Space: • A proven (tested) Rescue Plan will be in place. • All associated equipment required by the recue plan will have been inspected and made ready. (Tripod, harness, SCBA etc. as applicable) • All members of the work team will be fully conversant with their role in the rescue plan • The OIM/MIC will not permit Confined Space Entry to take place without the rescue plan. 32