JOB SAFETY ANALYSIS OF HVAC COMMISSIONING AND FUNCTIONAL TEST

JOB SAFETY ANALYSIS OF HVAC COMMISSIONING AND FUNCTIONAL TEST

Planning Unplanned Execution All necessary materials, tools, equipment and certifications or documents must be identified, prepared and provided
prior execution and as required by each activities (e.g., 3rd party Certifications, Calibrations report, etc.)Work permits must be prepared and completed before each conduct of activities.

Tool box talk meeting discussing all related hazards, risk and control measures as per this document must be done.

Proper coordination with the Client and other subcontractors must be done accordingly (as needs arises).

Mobilization -Vehicle poor conditions
-Over speeding
-Improper vehicle parking
Only Drivers with SAG valid license is allowed to drive transport vehicle.

Ensure that the vehicle is properly maintained, inspected and in good condition.

Drivers shall abide all the SAG traffic regulations and Client/ Saudi Aramco
traffic requirements at all times.

Drivers shall not exceed the posted speed limits.

Ensure that the vehicle is appropriate, adequate and sufficient as per the type of elements to be loaded.

Seat belts must be properly working and vehicles must have a portable first aid kit and fire extinguisher and worn by all occupants.

Pre-Commissioning and Start Up
A. Control installation and termination procedure
-Installation and termination 
-Ensure installation quality is performed for the location of HVAC Contra Panel.-Perform the continuity test between the panel and field termination point in accordance
with the wirirng and schematic diagrams.

-Tag cables as per the tagging system.
-Tag and terminate the cables from both ends at the time to avoid mistakes.

– HVAC Control Panel terminations
-Perform the continuity test between the panel and sensor or field device in accordance with the
wiring and schematic diagrams.

-To avoid mistakes, tag and terminate the cables at both ends.

  • Falling from heights
  • Pinch points
  • Sharp edges, pointed protruded objects
  • Slip and Tripping Hazards
  • Accidental cuts from cutting tools
  • Ensure that the Personnel to conduct the inspection are trained authorized personnel.
  • Ensure that Pre – inspection checklist Forms as per MS is provided.
  • Ensure that ladder is properly inspected and tagged.
  • When using ladder as access for inspection; ensure the ladder is in good condition (complete rungs, secured joints, with rubber soles, locking system, etc…) 
  • Maintain the 3 points contact when using step ladder.
  • Provide additional personnel to assist the performing technician. Ladders must be secured by assigning that assistant to hold it from the ladder base point or securing the top part by attaching to a secured anchorage point without wobbling.
  • Ensure that floor is free from any liquid that may cause the ladder to slip and tipped over.
  • Provide personal fall arrest system if applicable.
  • Identify pinch points and provide control measures; i.e. sharp edges, rotating machine parts, narrow spaces by covering, guarding, isolating and proper spacing.
  • Ensure that the electrical power supply is shut down and isolated. Implement Lock Out-Tag Out Procedure if flow of energy needs to be isolated
  • Use proper PPE
 

  • Hot Weather Temperature
  • Heat Stress
  • All workers prone to heat stress must be properly informed / oriented about factors that contribute to the illness that it will cause as well a the control measures to prevent it.
  • Environmental conditions must be monitored (e.g., air temp. relative humidity) and communicated to all expose employees. Sufficient number and spaced shaded resting shelters must be provided for workers. It must be located not exceeding 100m (330ft) away from personnel working or exposed to direct sunlight or direct open brazing flames.
  • Provide sufficient number of local ventilation (e.g., industrial fans or portable air movers.
  • Portable blowers with built-in air chillers shall be used as needed enclosed work areas.
  • Work scheduling could be considering to conduct the activities in the cooler times of the day, especially during the month of Ramadan if it falls on summer.
  • Sufficient amount of cooled drinking water must be provided to the workers. Workers must be encouraged to drink plenty of water.
  • Workers highly prone to heat stress shall be allowed additional break time and water as they deem necessary for their health.
  • Personal Monitoring and Buddy System must be implemented. No ho work activity shall be done by an employee in solo or alone.
  • Proper PPE must be use (e.g., light colored, light weight, breathable clothing). Use of FRC are required in this case, Safety Personnel assigned together with the supervisor and workers may assess and provide mitigation plans in reducing the high probability of heat stress too-cur. Wetted clothing or towels could also be put into consideration.
  • Employees must undergo heat stress training.
COMMISSIONING

– To achieve the purpose of commissioning
of the above mentioned
subject title, Accomplished the commissioning
checklist listed below associated
to present method statement.
– Commissioning Form – “ZCC 03
11″ (Please see sample attached
paragraph 5)

The documentation, drawings, specifications, and pre­ commissioning must be completed. After commissioning, the plant is ready for start-up.
– Prior to commencing commissioning checklist, RFl should be initiated by the concerned subcontractor.

An agreement will be reached regarding the schedule of performing the commissioning.

  • Electro-Mechanical failure
  • System Failure
  • Wrong data reports
  • Rotating Machine Parts
  • Electrical Hazards – Arc Flash
  • Work at height
  • Pinch Points
  • Dusts
  1. Trained / Authorized Representative for Start-up/ HCP Functional Test / Commissioning of DDC Panel with the Client’s Representative are only allowed to conduct the activity.
  2. Conduct pre-job meeting to be facilitated by Representative for the activity, covering the flow of procedure and the hazards may accompany with it.
  3. Actual re-inspection as per the checklists must be done prior to start up activity.
  4. In isolating of hazardous energy, apply the Lock out Tag Out as per the required procedures.
  5. Ensure all electrical and mechanical connection, joints and brazes are secured properly.
  6. In turning on switches and breakers, observe and impose proper positioning. Body not directly facing the electrical connections, but stand on the sides.
  7. Ensure all testing equipment are in good condition, third party certified and calibrated.
  8. Ensure all pinch points are identified and controlled
  9. AIL tools and equipment must be inspected and tagged.
  10. AIl rotating mechanical parts must be lubricated and guarded.
  11. All energized equipment must be properly grounded.
  12. Representatives of Mechanical, Electrical, Controls Contractor as weII as, vendors must be in site assisting upon the execution of activity
  13. Stand-by man to be in-charge in operating the disconnection switch or emergency stoppage system in case of emergency.
  14. Sufficient number of fire extinguisher must be present in the site.
  15. Coverage area must be isolated, provide barrier using danger tapes and inform the adjacent activities regarding the activity. Prohibit other workers to enter beyond the barriers.
  16. Ensure full time supervision of Supervisor, Project Engineer an Safety Personnel.
  17. Comply as per working at height safety requirements by providing proper
    platform, fall protection system and PFAS.
  18. Use mandatory PPE and special PPE as required by any MSDS involve in an activity.
Housekeeping
  • Accumulated waste materials
  • Pinch Points
  • Do not use bare hand in cleaning.
  • Ensure tools and equipment used from the tasks have been removed and stored properly.
  • Ensure area is clean and safe.
  • Wear proper personal protection equipment.

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