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General Welding Safety Guidelines
1. Only approved experienced and trained staff may engage in welding operations.
2. All welding equipment must only be used as per the manufacturer’s instructions.
3. Welding equipment must be serviced by a competent person. Manufacturer’s suggested intervals.
4. Welding equipment must be visually inspected before each use and damaged units reported to the laboratory manager / supervisor. Damaged welding equipment must not be used until they have been examined by a competent person. Pay particular attention to gas lines and electrical cables.
5. Always assess the immediate working area before starting any work. Remove all combustible materials within the immediate work area, if this is not possible, then cover same with a fire blanket. Whenever possible, welding should take place in a dedicated welding booth.
6. Place ‘welding in progress’ signs beside work area, before starting any welding process outside of a dedicated welding booth.
7. A fire extinguisher and fire blanket must always be available to the welder.
8. When welding, the proper personal protective equipment must be used (see below). Users of such equipment must inspect it before use to ensure that it is not damaged in any way that would reduce its effectiveness.
9. When welding in a confined, difficult or dangerous location, check that there is adequate ventilation.
Do not weld galvanised or coated materials in enclosed areas without good ventilation. (Fumes are harmful and could be contagious)
10. Always consider the need for a post welding fire watch, especially when work has been carried out outside of a dedicated welding booth.
11. Don’t weld material that has been degreased with solvents, unless it’s totally dry and area is well ventilated
12. There must be sufficient space around the working area to allow the operator a free range of movement.
13. There must be sufficient light to see the piece being worked clearly.
14. Never leave active welding equipment unattended.
15. Keep the floor of the working area free of oil and grease.
16. Ensure that proper manual handling techniques are employed when manipulating work pieces and welding equipment
Electrical ARC-MMA-Stick, MIG or TIG Welding
1. Always ensure that the power supply is maintained in an appropriate condition and that all live cables are suitable protected. Units which are damaged in any way must not be used as they represent a significant shock risk. Refer to UCD Risk Assessment UCDA19 Electricity (General) for details on electrical safety in the workplace.
2. An appropriate face shield must always be worn.
3. All exposed skin should be covered when ARC-MMA-Stick, MIG or TIG welding.
4. A suitable flame-retardant apron or boiler suit must always be worn.
5. Purpose made welding gloves must always be worn.
6. Ensure that there are no nearby bystanders as they may be exposed to UV light. Always consider the use of welding curtains.
7. If using a high frequency AC power source do not allow any person with a pacemaker to come within 2m of the unit or the weld site.
8. All equipment must be properly earthed and insulated. Units with damaged insulation must not be used and must be removed from service.
9. All cables and connections must be in good condition and securely attached.
10. When welding in wet conditions, leads and couplings must be kept dry.
11. When welding in wet or damp conditions an insulation mat must be used.
12. Only approved cable couplings must be used.
13. Electricity supply must be 110v from a transformer through a 32 amp socket. If 110v not available then 240v can be used through using a protection RCD plug.
14. Primary leads should be armoured and be as short as possible.
15. Do not use shielding gases (Argon) in poorly ventilated areas.
Working in Confined Spaces
I will always have someone on watch to monitor any hazards or incidences which may occur.
Provision will be made for adequate ventilation and lighting in the working area.
Escape Plan
The area of work will be assessed and an adequate and safe plan will be worked out prior to work commencing for in the event of any accidents occurring to have a safe escape route to safety.
Gathering points will be discussed beforehand in the event of an emergency evacuation.
First Aid
Provisions for first aid will be in place in the event of any accidents occurring
Fire Extinguishers
Fire extinguishers will be ready at hand in the event of any fires breaking out
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