Confined Space Requirements PDF

Classification: Tasnee - General Information ❑ Rescue plan Preparation and requirements for confined Space Entry. If confined Space Entry Category B, the Rescue shall be prepared Confined Space Requirements...

Classification: Tasnee - General Information ❑ Rescue plan Preparation and requirements for confined Space Entry. If confined Space Entry Category B, the Rescue shall be prepared Confined Space Requirements prior to entry with obtained approval as below: ❑ Whom will prepare and How to ? ❑ Rescue plan shall be countersigned by permit issuer. ❑ Rescue plan shall be reviewed and approved by Incident Commander. ❑ Rescue plan shall be attached with confined space entry permit at site. ❑ Minimum rescue equipment shall be readily and available. ❑ Rescue plan Preparation and requirements for confined Space Entry. If confined Space Entry Category A, the Rescue shall be prepared prior to entry with obtained approval as below: ❑ Whom will prepare and How to ? ❑ Rescue plan shall be countersigned by permit issuer. ❑ Rescue plan shall be reviewed by Incident Commander. ❑ Rescue plan shall be approved by Incident Commander. ❑ Rescue plan shall be attached with confined space entry permit at site. ❑ Minimum rescue equipment shall be readily and available. 76 76  Classification: Tasnee - General Information Confined Space Requirements ❑ Safe Access and Exists for confined Space. ❑ The manway and or cover shall not be opened until made safe to enter. ❑ All open manway and or cover not in use must be positively barricaded. ❑ barricading tape is not allowed to be used for manway and or cover. ❑ In all cases, adequate and safe access and exit out shall be provided for the confined space. ❑ Personnel should not be lowered into confined spaces, without facilities to climb back out themselves. ❑ Use of cage for lifting material / person in the confined space shall be included in the JSA. ❑ personnel shall not be underneath when material is lowered or removed from confined space through winch / rope, cage, basket, etc. ❑ Condition Changes during confined Space Entry Permit. If a confined space condition been interrupted due to potential toxic or respiratory hazardous atmosphere arise or any emergency that requires immediate departure from the confined space: ❑ the Standby Person shall notify the concerned issuer as soon as possible. ❑ The Permit shall be withdrawn. ❑ All the entrants shall leave the confined space immediately. ❑ Permit issuer shall immediately cancel the confined entry permit. ❑ The confined space shall be evaluated to determine how the hazardous atmosphere developed. ❑ Control measures shall be implemented to eliminate the hazardous atmosphere prior to any subsequent entry. 77  Classification: Tasnee - General Information ❑ Work inside confined Space. ❑ Work at elevation inside confined space. Confined Space Requirements ❑ The area below elevated work shall be barricaded ❑ Splash pans (used to collect oil spillage) shall be provided as needed. ❑ warning signs of overhead work shall be posted ❑ workers underneath elevation shall be protected from objects falling by means of suitable temporary barrier. ❑ Equipment and Tools for Confined Space. ❑ All electrical equipment shall be properly insulated and grounded with GFCI (ground fault circuit interrupter) connected. ❑ All electrical equipment shall be less than 24 volts. ❑ Pneumatically driven power tools equipped with conductive air supply hoses shall be used where possible. ❑ All hand-held electrical equipment shall meet the applicable local/regional/international standards. ❑ All cord and plug connected electrical equipment shall be equipped with ground fault circuit interrupters. ❑ Scaffolding, whenever required, shall does not obstacle the entrance or exit into or out of the confined space. 78  Classification: Tasnee - General Information ❑ Hot Work inside confined spaces. Confined Space Requirements When Hot Work is necessary inside confined space, special precautions must be taken according to the obtained hot work requirements: ❑ A Hot Work Permit shall be issued in addition to the Confined Space Entry Permit. ❑ The Equipment shall be prepared for hot work. ❑ A detailed analysis (JSA) shall be developed and followed. ❑ Adequate ventilation shall be required at all times when performing hot work in a confined space. ❑ Vessel internals such as vortex breakers, columns, , trays, etc. shall be carefully checked to ensure complete removal of material which might be a source of flammable, toxic or other gases, liquids, vapors or dusts at working location. ❑ Hot work shall not be allowed in any confined space where there are other activities in progress which could increase flammable gas levels in the space or create hazards for others in the space. ❑ An approved dry chemical fire extinguisher (A, B, C) shall be positioned as near the entrance as possible. ❑ Fire Extinguishers must be provided by the contractor. ❑ TASNEE Fire extinguishers shall not be used for hot work by contractor. ❑ When persons are working in close proximity or overhead of each other, suitable barriers shall be provided. 79  Classification: Tasnee - General Information ❑ Hot Work inside confined spaces. ( continued ) Confined Space Requirements ❑ When welding taken place in confined spaces the following precautions shall be followed. ❑ Atmosphere Testing shall be carried out. ❑ Welding machine shall be grounded. ❑ Compressed Gas cylinders and welding machines shall be kept outside the confined space. ❑ Gas-burning or welding torches shall not be left inside the confined space while unattended. ❑ If removal of the torches is impractical, the hose at the regulator shall be disconnected. ❑ The gas cylinders shall be removed from the operating area at the end of any work period. ❑ When arc welding is to be stopped for any reason, the electrode shall be removed from the electrode holder and the holder carefully located so that accidental contact cannot occur. ❑ The welding machine shall be shut down or disconnected from the power source while unattended ❑ All arc welding leads and oxy-acetylene hoses shall be inspected for cuts, leaks, breaks, and insulation damage prior to use and repaired or replaced before use. ❑ Hoses and torches should be lowered through the manhole. 80  Classification: Tasnee - General Information Hot Work Outlines ❑ Hot Work Outlines: ❑Nature of hot work ❑Asset preparation for hot work ❑Tools and location preparation for hot work ❑Prohibited of hot work 81  Classification: Tasnee - General Information ❑ Nature of hot work Hot Work Requirements Any work capable for supplying of ignition source or any work that presents a hazard or high risk to employees and/or plant facilities. such as but not limited to: ❑ Use of open flame/spark producing equipment, welding, torch cutting, brazing, chipping, grinding, etc. ❑ Hot work permit shall be obtained for running/operate equipment’s and machines at site when exceeding the duration of vehicle / equipment entry permit. ❑ Working on live electrical circuits. ❑ Use of non-intrinsically safe electrical tools, explosive power cartridges, cameras or other activities which produce internal sparks, hot surfaces or other ignition sources. 82  Classification: Tasnee - General Information Hot Work Requirements ❑ Asset preparation for hot work: ❑ Asset has been De- pressurized, vented, purged, ensuring no flammable or combustible or other related materials remaining. ❑ Blocked valves including double block and bleed arrangements are not acceptable methods of positive isolation for hot work. ❑ positive isolation by installing rated blind or disconnecting line whenever applicable. ❑ JSA. ❑ Master blind list & marked up P&IDs. ❑ Master tag list & marked up P&IDs. ❑ Energy isolation form. ❑ Instrument impulse tubes shall be purged, disconnected and tagged. ❑ The lines and sources of flow or pressure shall be positively isolated. 83  Classification: Tasnee - General Information Hot Work Requirements ❑ Tools and area preparation for hot work: ❑ An initial combustible (LEL) gas test shall be done prior to commencing the hot work. ❑ Gas tests shall be continuous or periodically repeated according to the plant condition criteria. ❑ flammable and combustible materials shall be controlled and removed ensuring no materials present within (11 m) radiance from the hot work area ❑ sewers, drains and floor opening shall be covered and wetted. ❑ Gas cylinders and welding machine shall be kept in a safe distance from the welding / cutting operation. ❑ Sparks generated shall be totally contained ❑ All equipment and tools shall be free of any defects ❑ Oxygen cylinder hoses and fittings shall not be in contact with oil or grease. ❑ Valves on cylinders and torches must be closed not in use. ❑ Gas cylinders must be chained and secured upright in cylinder trolley. ❑ Welding machine shall be inspected and grounded. 84  Classification: Tasnee - General Information Hot Work Requirements 85  Classification: Tasnee - General Information ❑ Gas Testing Outlines: ❑ Gas testing is conducted by using a gas testing device (gas detector) to determine air quality, work atmosphere suitability and the required personal protective equipment. ❑ It ensures that worker will not be exposed to harmful concentrations of hazards substances or an oxygen deficient atmosphere, ❑ Atmospheres that have not been tested shall be considered hazardous until tests prove otherwise. ❑ Even during conducting gas testing, don’t enter or insert your body into Gas Testing a hazardous atmosphere. ❑ Gas detectors shall only be used in atmospheres containing oxygen between (10 - 20.8 %) as the device will not accurately function beyond this range. ❑ Gas testing subtitles: ❑ Gas Testing Requirements. ❑ Gas test Frequency. ❑ Concentrations & Safe Ranges of Gases. ❑ Gas Detectors Maintenance & Calibration. 86  Classification: Tasnee - General Information ❑ Gas Testing Requirements: ❑ Gas testing is mandatory for hot work, confined space entry, vehicle/equipment entry, and working in live electrical circuits in classified areas. ❑ All users of portable gas detectors shall be trained and certified. Gas Testing ❑ Works outside the designated hazardous location may no longer require a gas test. ❑ For measurement on enclosed locations the following precautions shall be taken: ❑ Avoid condensation or sucking up liquid into the sample tube. ❑ Hot work (e.g., flame, arc, or spark) shall not be permitted until atmospheres has been tested and concentration of gas or vapor is less than 5% of the LEL. ❑ Portable or continuous monitoring devise shall be equipped with An audible alarm and visible light for warning purpose. ❑ The alarms of the gas testing device should stay until the device is reset or the concentrations have returned to safe level. ❑ Whenever gas detector alarm sounded all workers shall stop the work, evacuate to safe assembly area and report to permit issuer. ❑ For open flame / spark, continuous gas monitoring is mandatory. ❑ The test result shall be recorded in the Work Permit by the authorized gas tester. 87  Classification: Tasnee - General Information Always test the air at various levels to be sure that the entire space is safe. Gas Testing Good air near the opening does NOT mean there is good air at the bottom! 88  Classification: Tasnee - General Information ❑ Gas test Frequency: ❑ Maximum allowable frequency between gas test is 2 hours. ❑ Gas test frequency shall be clearly identified in the work permit Gas Testing ❑ In the case of continuous gas test, ❑ Functional test shall be carried out for the Gas detector device at least during start of the operation each new shift. ❑ Gas test result shall be recorded in the Work Permit every 2 hours. ❑ A fresh gas test shall be carried out before: ❑ Restarting hot work in the event that the job is stopped/ interrupted for more than one hour. ❑ If an operational upset occurs or conditions change during the course of the work which could affect the concentration of hazardous or toxic gas at the work site. ❑ If there’s a doubt or requested, gas testing shall be conducted/repeated. 89  Classification: Tasnee - General Information Gas Test Frequency Gas Testing 90  Classification: Tasnee - General Information ❑ Concentrations & Safe Ranges of Gases: ❑ No person is allowed to work in an atmosphere containing toxic gas or vapor in a concentration beyond threshold limits value (TLV) without using appropriate protection. Gas Testing ❑ Threshold limits value (TLV) for each substance can be found in SDS. 91 Classification: Tasnee - General Information ❑ Gas Detectors Maintenance & Calibration: ❑ Operations shall ensure that maintenance and calibration of portable gas detector instruments shall confirm with the manufacturer’s specifications and recommendations. ❑ Maintenance and calibration of these gas detectors shall be undertaken by the Maintenance or authorized third party. ❑ Any fault indications, noted by the operator using the equipment, shall be reported immediately to the Operation Shift Supervisor. ❑ The Operations Shift Supervisor shall ensure that operational checkup of these gas Gas Testing detectors is done to ensure their reliability and its condition. ❑ All Operations personnel authorized to conduct gas test must first check the condition of the equipment prior to its use. ❑ Gas detectors by contractors or third parties are allowed after it's been checked and approved by related maintenance department. ❑ Competent third party shall calibrate gas detectors. ❑ Only trained and competent personnel shall carry out calibration, repairs and maintenance of gas detectors. ❑ Periodic checks shall be carried out on or before the inspection expiration date to ensure the portable gas testing device is reliable. ❑ In case of detector calibration validity date expired, the detector shall not be utilized. ❑ (Refer to below Photo Gas Detector device & inspection expiration). 92  Classification: Tasnee - General Information Working at Heights ❑ Personnel working at heights higher than two (2) meters shall be protected ❑ Wear the required safety harness with two (2) lanyards. ❑ Scaffold requirements must be adhered to at all times. Safe Making ❑ Scaffolding validity is every two weeks from erection date. ❑ Valid Scaffold Tag (Scaff tag). 93  Classification: Tasnee - General Information Excavation Work Excavation Work Preparation ❑ Clearly define the type of excavation, manual and/or machine excavation. ❑ If de-energization of underground utilities is not possible or location is not Safe Making identified, then the method of excavation shall be established to minimize hazards by such means as: ❑ The cable detector shall be used to identify the underground cable or utilities. ❑ Trail pit by hand excavation along the area to be excavated. ❑ Use of hand-tools in area of underground services. ❑ Insulate workers and equipment from possible electrical contact. ❑ Use tools or equipment that will reduce the possibility of damage to underground services and hazard to workers. 94  Classification: Tasnee - General Information Excavation Work Excavation Work Preparation ❑ Excavations will require a plan provided by the requester and approved by Technical (R&I) Department: ❑ Excavation depth is more than 1.2 meters. ❑ Excavation location is adjacent to structures or equipment. Safe Making ❑ Excavation location is subject to vibration or ground water. ❑ If the excavation will obstruct any roadway or access partially or totally, the Security and Fire Sections shall be notified. Obtain necessary permission fire interruption/ isolation form. 95  Classification: Tasnee - General Information Safe Making 96  Classification: Tasnee - General Information Lifting Precautions ❑ Forklifts shall never be used to lift a person. ❑ Barricades shall be put up around the work area. ❑ Nobody shall be allowed to walk or reach under a raised load. Safe Making ❑ Only one operator shall be inside the cradled platform and manning the controls. ❑ No passenger shall be allowed to ride with the Scissor platform. ❑ The load to be lifted shall not exceed the maximum allowable loading capacity. ❑ When lifting a load, the center of gravity must not exceed the load center measurement from the heel of the forks, to avoid overloading. 97  Classification: Tasnee - General Information Lifting Plan Requirements ❑ Lifting in congested areas where structures, pipelines, power lines, or other obstacles are located. Safe Making ❑ Lifting that involving “turning” or “flipping” the load over where “shock loading” and/or “side loading” is likely to occur. ❑ Lifting where the load weight is not known. ❑ Lifting in areas of poor soil, gravel or unknown ground conditions. i.e., Lifts involving potentially unstable pieces. ❑ Lifting involving multiple cranes. 98  Classification: Tasnee - General Information Permit Golden Rules ❑ No corrections or alterations on a permit shall be allowed. ❑ Work permits shall be completed ( issuing and closing ) in original and duplicate copy. Permit Rules ❑ The duplicate (field copy) shall be handed to the permit receiver and shall always be available for inspection and/or review at the work site. ❑ The original copy of the permit shall be retained at the permit office and be available for inspection at all times. ❑ All relevant documents for the issued permit should be attached to the duplicate (field copy) of the permit. ❑ Sequence of permit signatures shall follow workflow chart and work permit form as specified in the method. ❑ Blank permits shall, under no circumstances, be signed in advance. 99  Classification: Tasnee - General Information Permit Golden Rules ❑ Where a task extends over more than one equipment, a separate work permit for each equipment is required Where attachment list for the equipment shall be Permit Rules attached with permit as required. ❑ Task that have the same hazardous and can be identify within same area, level and location can be executed in one permit for example and not limited to (scaffolding works, greasing of pumps, taking vibration measurement) ❑ The minimum TPC PPE requirements are safety helmet, safety glasses, Safety Shoes and long sleeve clothe which apply for all employees & contractors or visitors entering plant area. ❑ The additional PPE shall be selected from company approved PPE Matrix ❑ Signing work permit shall be done jointly at work location. 100  Classification: Tasnee - General Information Permit Golden Rules ❑ During radiographic work, all other active tasks within the affected area shall be temporarily Permit Rules stopped and revalidated afterwards. ❑ Prior to resuming the work hazards Identification & mitigation need to be confirmed If conditions have not changed then the work may be revalidated and continue. ❑ If conditions changed then a new permit shall be issued. ❑ If the work is not completed within the agreed duration, it can be Extended MAX 12 hours total working time during normal operation and MAX 24 hours total working time during TAM. ❑ When the Receiver changed then the continuation of the work permit shall be signed on both copies. 101