Welding arc time and UV exposure : implications for worker safety
Tenkate, Thomas D. (2008) Welding arc time and UV exposure : implications for worker safety. Journal of Occupational Health and Safety : Australia and New Zealand, 24(2), pp. 161-166.
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Welding arcs are widely used in the occupational environment and are probably the most intense artificial source of ultraviolet (UV) radiation. Unfortunately, thre is little empirical evidence for what the arc time (the timefor which the arc is actually struck) is for a typical welding operation. As such, a light-activated electronic timer was developed and trialled. The timer measured arc time, the number of "strikes" (initiatyions of a welding arc), and personal UV exposure for comparison.
The average arc time for an eight-hour period was 1.6 hours (20% of operational time), and the average number of strikes was 180. Personal UV exposure was found to be significant and moderately positively correlated with welding arc time. These results highlight that, for the majority of their day, welders are potentially exposed to hazards that are not directly related to their own welding arc.
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