3 3 2 3 2 3 16 Welding machine not to be used while standing in the water. ), or, adhesives (such techniques are under continuous development), using a consumable that produces less fume, using a welding process that produces less fume, making sure the metal has been properly cleaned and prepared, automating or mechanising the process or job, using other engineering controls such as LEV, a stock of spare parts for example, batteries and filters , compatibility with other personal protective equipment (PPE) you have provided for the task, for example a welding visor, effective general ventilation provides rapid fume clearance and a through draught to ensure that fume generated from welding is dispersed and removed. Besides, oxy-acetylene and electric arc welding, other modes used are submerged arc welding, gas shielded arc welding processes TIG and MIG, plasma arc cutting and gauging etc. Enter the email address you signed up with and we'll email you a reset link. This must include the welder and any other workers in the area. RISK MATRIX Potential consequence of harm 1 -Minor Injury (e.g. RPE must be suitable for each wearer. Burns and eye injuries. Hazards associated with working at height. The standard does not specify any particular colour, it just requires the curtain to attain certain levels of performance. Hm2ay`;L1`\\&\?`ur@iYU#O1J"]K+VLSMhZm0 2pv(f-@s:]RMzfq(VLv,rC~0>Ajae0.X4lYL`ltK[xsP*gi^0w k\STm>>mF.Af9FUxK Qr4bTp,Nxd1yyJ9loa>Y|(*FBtfdwa,4n\zB#>C*TLl-|L6m4UP4q4Id0^D!lRhKlAARV F4(%&=^cC9"`7R60J#sUZdAel0yEp 7HR?VvA!y "-+`<29?R>o^puOcv:| '(SNUseKZu.A\heZTL*[Y9RrkPT' Uui7Emm9Qh/hnL)X# ]A;"egJ^B|w9aoN;9|ANH2%%'(0>89e`v ; 'g}=zN6ukq*{RSf0ulK?ey,lS;hXa-P7d?+u;}R#p(SXq.-L9Xq.Ly-9D.-;V&Tp{q/etMkIp8ZN-J[h(Q9h-J8x2DN ' Hazards due to dangerous fumes and gases. Asphyxiation hazards in welding and allied processes gives more guidance on this. If you aren't rescued and breathing normal air within a few minutes, you are likely to pass out and eventually die. Some welding equipment suppliers may refer to this as EN ISO 25980. Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. The risk assessment should be carried out by a competent person who has been trained in the use of the equipment. To protect against splatter when welding, wear appropriate clothing that covers arms and legs, and use suitable gloves. This means all arc welders using hand-held equipment are at risk of electric shock and electrical burns. If you cannot achieve adequate control from LEV alone, or it is not reasonably practicable to provide LEV, you must provide your workers with suitable respiratory protective equipment (RPE). Flame-retardant, heavy canvas screens are very common, but many people prefer to be able to see if someone is welding inside. Hazards associated with welding and cutting can be classified as: i. The electrical resistance of damp or contaminated clothing may be significantly reduced, giving rise to a greater risk of electric shock. Keep stacks to 2 high only. HSE's offshore web pages give more guidance. Your assessment should consider factors such as the: When reducing exposure to any hazardous substance, the principles of control are based on a prioritised approach. Environment/Atmospheric condition. SITE: DATE: MAIN HAZARDS. If welding is part of your work activity, you must carry out a risk assessment to identify what measures are required to control the risks from exposure to welding fume. You may need to plan the return path carefully to minimise risk. risk assessment methodologies contributes to prevent and control undesired event i.e. Building construction projects form a bulk of construction projects in Ethiopia and are paramount in the areas of housing, business and public undertakings. so alternative LEV Systems such as on tool extraction must be considered. This watch should be maintained for at least 30 minutes after the completion of the hot work, but where an unintended ignition may be difficult to detect or slow to develop, this may need to be extended to 60 minutes. P>H!8XJWN4fAxehAgsq9k\d!K#tU)}*N>OeHV"gta3[*o}YpZ,5p+KR2xC=&r,* 7ElCYZ \=C~\KN\$P$Cg38L&9ce9F`Hugn92*V*j You should have an RPE management programme which includes: The HSE publication Respiratory protective equipment at work gives more guidance. if you have to go in, use a safe system of work. Most welding gases, including all the inert gases, have no smell. Also consider any other workers exposed to the welding fume, taking account of the level of general ventilation provided and excluding unprotected people from welding areas. For most welding operations, it is better to clamp the current return cable close to where you are welding. Confined spaces: A brief guide to working safely, Asphyxiation hazards in welding and allied processes, Dangerous substances and explosive atmospheres, Maintaining portable and transportable electrical equipment, work with electrically powered equipment, Preventing slips and trips at work: A brief guide, consider if there is a way to do the job without going in. Respiratory protective equipment (RPE) If you cannot achieve adequate control from LEV alone, or it is not. In addition, it helps companies maintain compliance with safety standards, which most importantly protects employees but also protects the bottom line. The mat should be large enough to protect welders if they kneel or lie down to complete a task. . See, Weld cleaningfor example,specific precautions are required for use of pickling paste (refer to the Safety Data Sheet), using alternative cold joining techniques, Environment and location e.g. In general welding is carried out almost in all factories and workshops and the sites can be broadly divided into four categories. Controlling airborne contaminants at work. Follow the guidance in SLIC Guidance for National Labour Inspectors on addressing health risks from Welding Fume to reduce the need for welding and to reduce the generation of welding fume for example, The specific controls for the welding task depends on the following (they should be documented in your risk assessment). HSE guidance Hot work on drums and tanks gives a simple description of the safe way to do this work. The latest figures show that slips, trips and falls account for a large proportion of reported accidents. By using our site, you agree to our collection of information through the use of cookies. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. Controls are required to ensure compliance with the current legal requirement for risk assessment, engineering control measures and applying the Hierarchy of Control. Stacks collapsing or sinking. . Danger to children. For work not expected to exceed one hour, a FFP3 tight-fitting disposable mask or re-usable half-mask with a P3 filter may be adequate to protect against particulates if the wearer is clean shaven, but these particulate filters will not protect workers from welding gases contained in the fume. Only trained forklift drivers to . These devices reduce the risk of electric shock from inadvertent contact with the electrode. This is done by directing a flame from burning gas (usually acetylene) to melt metal at a joint to be welded and is a common method for welding iron, steel, cast iron, and copper. All these types of operations are associated with various hazards. Fire & explosion. make sure you know what the emergency rescue plan is, never use oxygen supplies to 'sweeten' the air (this is a very serious fire risk), welding equipment conforms to the appropriate international (ISO) or British (BS) standards, installation of fixed welding equipment is carried out by a suitably qualified person and is connected as recommended by the manufacturer, the insulation on the welding and current return leads is undamaged and the conductor is thick enough to carry the current safely, all connectors are clean, undamaged and correctly rated for the current required, insulation on the welding cables, plugs, clamps or torch/electrode holder on welding equipment is undamaged, welders use the appropriate personal protective equipment for the task, position the welder inside a metal structure, for example inside a tank, position the welder on the metal workpiece. iii. You are likely to find you cannot complete simple tasks, including finding the way out. HSE aims to reduce work-related death, injury and ill health. Resistance spot welding produces much less fume than other welding processes like MIG welding. Acetylene is very explosive, even in small amounts. The HSE publication Controlling airborne contaminants at work gives guidance on planning, designing, commissioning and testing effective LEV. iv. The welder is responsible for daily equipment checks and reporting defects. Falling loose bricks. 4 0 obj Welding machine to be inspected before use and welding machine . Eye protection is required to safeguard against splatter. Welding risk assessment uk. A leak of acetylene gas in to the back of a van can cause a serious explosion. Issue 3 June 18 Completion of this document converts it into a site specific assessment. When LEV discharges within the work area, the discharged air must be filtered to reduce the particulates to a negligible concentration. Academia.edu no longer supports Internet Explorer. Mechanical general ventilation uses fans mounted in the ceiling or high up on a wall to extract the air in the room and draw in clean air to disperse airborne contaminants. Movable LEV units with swing-arm hoods rely on workers correctly placing hoods and moving the hood as they work. You cannot rely on LEV to effectively capture welding fume at outdoor operations. A reputable supplier should be able to confirm if a curtain conforms to the British Standard. The risk for MIG/ MAG and. Risk Assessment of Welding The welding risk assessment must take account of the type of welding, the material being welded, the welding gas used and the electrode or welding rod, in addition to the location, other welding activities, ventilation and the work practices of the welder. User of the grinder to be trained on how to do the pre use inspection and the use thereof. The COSHH essentials sheet WL3 Welding Fume Control gives more guidance. this choice of career can lead to lucrative . To be reviewed in 12 months Page 1 of 1 Risk Assessment Activity: Use of Arc Welding Equipment Hazards Harm Risk prior to Control Measures Persons at Risk Required Control Measures Records/Actions Risk - Control Measures Applied Electricity Burns This assessment provides a baseline for implementing solutions for identified risks and establishing appropriate welding safety training. Companies who manage their slip and trip risks effectively can reduce these types of accidents. Under the Chemical Agents Regulations, the risk must be assessed on the basis of the risk presented by all such chemical agents in combination. This means all arc welders using hand-held equipment are at risk of electric shock and electrical burns. %PDF-1.7 x]Ys7~WC=f:1I>']?"d&lJU*q~]D" dWC:7?y]_ow~wv _}o/_di#,$K&%+&~^xIW/_2KHBIW i;:~oMF}N~z\6'Oub'i~$Y3y/d'B,F$I"e:"l:-3Uq ]!'[x/Yl+Wr1(fR|*{. vii. Inert gases and some common chemical reactions (for example rusting) can reduce the amount of oxygen inside enclosed spaces such as tanks, pipes and pits. Postural fatigue viii. % Welding risk assessment and method statement. The British Compressed Gases Association publish relevant guidance. There is more detailed information on HSE's fire and explosion web pages. This reduces the possibility of electric shock from simultaneous contact with any parts of 2 different systems, irrespective of the voltage of either one to earth. COSHH Essentials sheet WL3 gives more advice on fume control. Stray currents may be substantial and comparable to the welding current, resulting in a risk of electric shock, burns and damage to property. Employers should have a programme of regular checks for fixed and mobile welding sets. There are standards covering impact resistance, auto-darkening welding filters and fixed filters. Some components of welding fume, for example cadmium, can be fatal in a short time. Welding risk assessment hse. What were the previous contents of the item being cut or welded? To learn more, view ourPrivacy Policy. Workers operating automated or mechanised welding machines or other workers nearby are unlikely to need RPE if: It may not be possible to have an LEV system in robotic cells capable of capturing all the fume. Dangerous substances and explosive atmospheres gives more guidance on permit-to-work systems. CONTROL MEASURES. Wear goggles when chipping slag or wire brushing welds during preparation or finishing off work. Argon and carbon dioxide are relatively 'heavy' gases. You should consider eliminating welding where possible by using cold joining techniques with: If you cannot eliminate welding, consider: The most effective way to reduce welding fume is to capture it at source, protecting the welder and preventing fume spreading. [^SeCVTaYX[6!q@exHY22cKkNiwgnwMG.:.qZ When welding on large structures and pipework installations, avoid clamping the welding return to handrails, pipes or the frame of the structure unless they form part of the workpiece itself. When using 3-phase welding circuits or single-phase circuits derived from different phases of the mains supply, segregate the welding positions connected to different phases or transformers by partitions, or distance, whenever reasonably practicable. Gases given off by the welding process can also be extremely dangerous. Sorry, preview is currently unavailable. Local exhaust ventilation (LEV) which suits the work activityfor example,moveable extraction arms (elephant trunks) are unlikely to be suitable for a continuous weld on a large workpieces etc. (2) Collapse of scaffolding, falling of materials from the height, carelessness of the worker and Improper use of safety tools. On-torch extraction can be very effective for MIG welding, and you should assess if it is useful for your task. If you are in control of operations where there is a need to: you may need to provide an insulating mat or some other dry platform, so welders are not in direct contact with wet or conductive surfaces. ix. Extracted benches are a good choice for medium and smaller welding jobs that can be brought over to the bench. Radiation hazards - which are usually visual hazards ii. Your risk assessment should also address: Where welding is part of your work activity, you must carry out a risk assessment to identify what measures are required to control the risks from exposure to welding fume. Where exposure cannot be adequately controlled using engineering measures, then the welder must also wear appropriate respiratory protective equipment (RPE). The current return path should be as short as possible. A powered air respirator or a supplied air respirator which combines respiratory, eye and face protection, with an APF of at least 20, is the best option for arc welders. (a) Open workshop (b) Open are (c) Semi-confined spaces (d) Confined spaces. Welding and cutting inside ships and other enclosed spaces is particularly dangerous as smoke from fires cannot escape and will quickly overcome people working nearby. iii. vii. High noise level during certain operations. These include (not limited to) chromium (VI), nickel, manganese, ozone, Nitrogen oxides, carbon monoxide and chemicals generated by coatings etc. The solutions are often simple and cost effective. There are specific methods for confined space working. <> At the moment, HSE is not aware of any clear welding curtains that conform to BS EN ISO 25980. Enter your email address in the box below to receive an email each time we post a new issue of our newsletter: Noise (this can be different at each ear depending on the position of the welder to the weld), Fire safetyfor example,is there a requirement for a hot work permit? Generally, Chapter 1 deals with Introduction part of the study, Chapter 2 deals with the literature review of the study, Chapter 3 deals with the Methodology used to perform the study, Chapter 4 deals with the Analysis of the data gathered, and Chapter 5 deals with the Conclusion and Recommendation, Suggestion for Future Research. Welding machine not to be left unsupervised. The important role building constructions play in the economy underlines the necessity for assessing hazards in these construction projects with a view of identifying the causes of hazards and their source in construction site which affects the successful completion of the projects. professor Tareq abdhulkadhum naser Alasadi, Construction Health and Safety Manual Construction Safety Association of Ontario 21 Voyager Court South, Etobicoke, Ontario M9W 5M7 Canada (416) 674-2726 1-800-781-2726 Fax: (416) 674-8866 info@csao.org www.csao.org, SAFETY IN WORK PLACE Safety In Welding & Cutting Operations HAZARDS ASSOCIATED WITH WELDING, Code-of-safe-working-practices-for-seafarers, Final Thesis by Misgana Meseret Desalegn Sisay Tibabu 2015 GC 1, accident prevention on board ship at sea and in port.pdf, --- Health and Safety at Work ; Key Terms - Jeremy Stranks, Safety in Welding, Cutting, and Allied Processes, CDB1021 Health Safety Environment ASSIGNMENT #2 [PETROLEUM ENGINEERING] GPE07 Risk physical hazard assessment and prevention method in automotive industry, Occupational hazards, injuries and illnesses associated with small scale gold mining: case of Ward 19, Zvishavane, Zimbabwe, Operator Manual RV Generator Set KY (Spec JN, Review on Industrial Hazards and its Prevention, THETAMILNADUFACTORIESRULES, 1950 Contents. A precautionary approach is advised to control welding fume exposures to the lowest levels practicable. For example, a car mechanic wearing RPE with good general ventilation in the workplace, carrying out an occasional short welding job on a car with a broken exhaust support bracket, would meet the minimum requirement for compliance. Welding risk assessment doc. (3) Other causes of hazards including new technology and sharp corner on the site, lack of adequate and skilled personnel, lack of appropriate supervision and numerous. If there is no need to see the person welding or for screening in between welding bays, darker or opaque screens and curtains should be used. Postural fatigue viii. 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