In this article
Required Training for the Job:
Manual Lifting and Rigging, Pressure Testing / pre-commissioning, Hazard Communication, Lock-out / Tag-out Training.
JOB HAZARD AND RISK ASSESSMENT FOR INTERNAL CLEANING FOR PIPING
Job Steps |
Hazard |
Initial Controls |
Activity: Internal cleaning for piping:1.Preparation and hauling of pipes, tools and equipment prior to start of work. |
1.1 Sharp edges of tools and equipment that are not easily spotted. | • Secure appropriate work permit prior to start of work. • Conduct toolbox talk and supervisor to discuss the hazard and control measure indicated on the TSTI prior to start of work. • Provide guards to sharp edges of all equipment. • Install barricade tapes provide warning signs on sharp materials to make it visible for all employees present in the work site. • Provide proper personal protective equipment i.e, hard hat, safety shoes, safety glass and working gloves. • Impose staggered working hours. Include substitution of workforce to allow sufficient rest in between employees. • Provision of cool drinking water and shaded rest place industrial fan. • Supervisor shall monitor their work force by looking for signs of dehydration. |
| 1.3 Severe Weather Condition (Sandstorm, High winds, etc.) | • Secure all loose objects and materials (i.e. Ladders, pallets, portable toilets, Gl Sheets, drums, trash in dumpster, etc.) • Set brakes and secure all mobile equipment / vehicles. • De-energize all unnecessary electrical power. • Appropriate material should be available and stored on the project to facilitate the securing of project property, materials and equipment, i.e nylon rope, wire, tarpaulins, boards / plywood, etc. |
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| 1.4 Poor manual handling techniques | • Maintain proper back posture and body position during manual lifting of materials. Position body where less effort is exerted and less strain. • Use crane, forklift, or manual lifters for heavy loads.• Divide load weight between co-workers. • Assign additional person at the trailer bed to assist for loading/arranging small bore pipe spool. • Assign sufficient numbers of personnel who could sustain the load when doing manual handling. • Observed proper communication between coworkers during execution of specified task. |
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| 1.5 Formation of fumes in confined space area may lead to suffocation. | • Forced ventilation shall be arranged wherever work is to be carried out in a confined space area. • Gas analysis should be conducted prior and during activity by HSE department. • Electric cables at least 7 ft in height or provide protective guarding if to be laid on the ground. use metal hooks protected by rubber hose. • Observed proper housekeeping and material management when the work is done. • Workers shall be equipped with proper personal protective equipments (PPE’s). |
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| 1.6 Sub standard defective electrical facilities | • Do not use dilapidated cables and tampered outlets. • Observed proper bonding of materials and equipments and install sufficient grounding for generator. |
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| 1. 7 Poor practices on maneuvering heavy equipment. | • Heavy equipment operators/drivers must undergo competency training and certification before operation/driving heavy equipment. • Equipment should have blinker light/sound. • Provide PWAS to equipment. • Assign banksman or signal man to direct maneuver of heavy equipments. • Install barricade tapes and provide warning signs to. |
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| 2. Water cleaning | 2.1 Failure of equipment 2.2 Loose connections and unsupported pipe lines.2.3 Water not drained properly.2.4 Environmental impact (Water contamination). |
• Ensure that the equipment used for the rest has been inspected and has a valid inspection tag and color code. • Ensure that the area is cordoned with barricade and warning signs. • Ensure that proper PPE are provided for all personnel involved in the activity. • Ensure that all connections are properly tightened and all pipe supports and hangers are completely installed prior to start flushing. • Ensure whiplash arrestors are properly installed. • Assign competent personnel for the job. • Ensure that proper PPE’s are provided to all personnel involved in the activity. • Cover all electrical equipment in the area. • Ensure that drain system can cope with the volume of water. • Disposal of the effluent should be in the holding tank and must be adequate to avoid flooding. • Isolate the area with barricade and signs to prevent unauthorized entry.• Discharge of waste water should be done by certified waste water collector. • In case of flange breaking, draining a lve shall be connected with hose to avoid shower. |
| 3. Air Blowing. | 3.1 Failure of equipment i.e Air Compressor | • Equipment used bearing with current inspection sticker and color code for t he specific month. • Qualified inspector shall be assign to conduct through inspection. • Ensure that equipment equipped with fire extinguisher, properly grounded and provided with drip tray. |
| 3.2 Unsafe practices or incompetent of personnel performing the job. Advertisement
3.3 High intensity noise /sound. |
• Provide whiplash arrestor on hoses which are possible to disconnect or where high air pressure is present. • Ensure work area is provided with corresponding “Air Blowing in progress”. • Ensure that comrding “petent person will authorized in the job and undergo t raining regarding “Hydro / Pneumatic Training” • Personnel performing air blowing shall wear appropriate personal protective equipments (PPE’s) including face shield and reflective high visibility vest at all times.• Provision of air nozzle shall be sued. • Provide signages pertaining on ear muffs / plug required beyond this point. • Personnel conducting air blowing shall be equipped with ear muffs I plug at all times. |
| 4. Air / Nitrogen cleaning | 4.1 Eye irritation, loose of hearing and physical injuries 4.2 Slips, trips and fall 4.3 Over exposure, asphyxiation. |
• Secure approved work permit prior to start of work. • Ensure blow point was isolated with barricade, post warning signs and standby watchman. • TSTI must be conducted and discussed by the job In-charge / Supervisor and understood by the workers. • All personnel involved shall wear clear glass and additional personal protective equipment like face shield, ear muff or ear plug. • Walkways must be free from scattered materials, maintain good housekeeping at the entire work area. • Ensure to wear Full Body Harness when working 1.8 meters above ground and observe 100% tie-off • Position the body opposite air direction during opening the valve. • Install barricade and post warning signs such as “NITROGEN CLEANING IN PROGRESS”. • Assigned dedicated standby man outside the danger zone to ensure no personnel will enter the area where nitrogen release is in progress. • Material Safety Data Sheet (MSDS) must be in record and available at site. |
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