Читать книгу Patty's Industrial Hygiene, Physical and Biological Agents - Группа авторов - Страница 107

Electrical discharges used in arc welding and plasma arc cutting are a common source of potentially hazardous visible, UV‐A, UV‐B, and UV‐C radiations. Emission spectra from welding and cutting arcs consist of numerous spectral peaks that may be superimposed on a continuum. The spectral distribution of the radiation depends on the shielding gas for the arc, the composition of the electrodes and the base metal, and the welding current.