Welding is a procedure by which two or more pieces of metal are joined by the application of heat, pressure, or a combination of both, with or without the addition of metal. The heat can be provided by a flame (for example produced by the combustion of a fuel gas mixture with air or oxygen), an electric arc between the electrode and the piece to be welded or electrical resistance offered by the current as it passes between the pieces to be welded. . Welding processes involve a series of non-negligible risks of diverse nature: Related to the energies used: Electrical energy (electrocution, burns, etc.). Flames (burns, fires, etc.). Gas handling (explosion, fire, burns, etc.). Related to the process itself: Generation of non-ionizing radiation (harmful to the eyes and skin). Generation of toxic gases and fumes (their composition will depend on the electrode, the metals to be welded, the temperature, etc.). Related to complementary operations such as grinding, brushing, deburring, etc. Related to the conditions in which the work is carried out: 1. In elevated places 2.In closed rooms or confined spaces. Knowing them and the preventive measures to apply is the first step to avoid accidents and occupational diseases derived from the development of this activity. the most important way is to use the necessary equipment every day, know the area, take preventive measures and educate yourself regularly
