Instructions for labor protection in electric arc welding

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions for labor protection during electric arc welding. Full document

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

Persons over 18 years of age, specially trained in electric arc welding are allowed to work on electric arc welding. Persons over 17 years of age, specially trained in electric arc welding, who have undergone medical selection and on-the-job instruction are allowed.

The welder must have a certificate and be certified annually for this type of welding.

Permanent and strictly fixed places and areas must be allocated for electric arc welding work.

To protect surrounding workers from the effects of electric arc rays, workplaces of electric welders located in open areas must be fenced with portable screens, shields or screens.

2. Safety requirement before work

Wear the required working clothing and safety shoes. Do not tuck your jacket into your trousers, as drops of metal may get caught in the trouser waistband. Close the jacket pockets with flaps. Lace your shoes tightly. Wear boots untucked so as to cover the boots

Check the shield or helmet for any cracks or holes. If damaged, replace it.

Check the serviceability of grounded casings, housings, apparatus, electrical grounding of the part being welded, and the serviceability of wire insulation.

2. Safety requirement during operation

Turn on ventilation. Do not carry out welding work at a distance of more than 5 m from flammable and flammable substances. Make sure that flexible wires and cables do not come into contact with wet areas and have proper insulation.

When initiating an arc, it is necessary to warn others with the words: “BE AWARE OF YOUR EYES.” When preparing material for welding, cutting and cleaning from rust, it is necessary to wear gloves and safety glasses with ordinary clear glasses.

Do not weld equipment and pipelines under pressure. Do not carry out electric welding work outdoors during thunderstorms and rain.

When welding inside closed tanks and other areas, ensure reliable ventilation of workplaces. In this case, at least 2 people must take part in the work, and one of them must observe the welder.

Inside closed tanks and other sheet metal structures, perform welding work only on dielectric mats in dielectric galoshes.

Carry out welding work at height from scaffolding, lifts, cradles after checking these devices by the work supervisor, as well as taking measures against the fire of the decking, the fall of molten metal on workers or passers-by.

When welding, the following protective equipment is used:

75…200 A;
200…400 A;
over 400 A.

3. Safety requirement after work

After graduation, you must:

turn off the power to the welding machine;
turn off ventilation;
clean the workplace and hand it over to the master;
hand over the overalls;
take a shower.

4. Safety requirement in emergency situations

Emergency situations include power outages, breaks and short circuits of electrical communications.

If voltage appears on the insulated wires of the electric welding machine, it must be turned off immediately and reported to the foreman. If a fire occurs in the windings or nearby objects, turn off the power and immediately take measures to extinguish the fire. The procedure for providing first aid.

The welder must take measures to provide the necessary assistance to the victim in accidents until the doctor arrives.

First aid sequence:

eliminate the influence on the body of harmful factors that threaten the health and life of the victim;
determine the nature and severity of injuries, the greatest threat to the life of the victim and the sequence of measures to save him;
take the necessary measures to save the victim in order of urgency (restore airway patency, perform artificial respiration, external cardiac massage, stop bleeding, apply a bandage, etc.);
support the casualty’s basic vital functions until paramedics arrive;
call an ambulance or a doctor, or take measures to transport the victim to the nearest medical facility.

Assistance to victims who are not medical workers should not replace assistance from medical personnel and should be provided only before the arrival of a doctor.

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