Selected measurement problems during the evaluation of occupational exposure to UV radiation emitted by the welding arc

Rybczyński, Andrzej; Wolska, Agnieszka

doi:10.1109/lumenv.2016.7745535

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…A welding arc is one of the strongest technological sources of artificial optical radiation, especially in the ultraviolet and visible range [5][6][7][8][9][10][11][12][13][14][15]. It creates a wide range of risks for the skin and eyes of both welders and workers or people around the welding workstation [13,14,[16][17][18][19][20][21]. Strong UV radiation is emitted by the welding arc into the surrounding environment, and a great number of workers at the workplaces, where welding is performed, are exposed to ultraviolet radiation (UVR).…”

Section: Introductionmentioning

confidence: 99%

Ignition of Welding Arc and UV Actinic Hazard Evaluation

Rybczyński¹,

Wolska

Wisełka

et al. 2019

Energies

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Welding arcs emit strong ultraviolet (UV) radiation, which could pose serious health risks for skin and eyes. According to Directive 2006/25/EC, UV hazard evaluation has to be performed in the working environment. The measurement of welding arc ignition radiation is a difficult task. This article describes the effort made to determine actinic radiant exposure levels during welding arc ignition in the controlled environment of a welding laboratory. A new method of UV actinic hazard evaluation from welding arc ignition radiation using a CCD spectroradiometer combined with a photometer is presented. The hazard of UV emitted in pulsed metal active gas welding (MAG-P) of construction steel is described. The duration of ignition peak in the study was in the range of 9–15 ms. The actinic radiant exposure during arc ignition over aversion response time was in the range of 0.26–1.12 J/m2. The daily exposure time can easily exceed the permissible exposure time obtained in our study, i.e., 13–34 s, which means that UV radiation form MAG-P arc welding is hazardous for workers in the vicinity of the welding arc. The measurement method presented in the article enables determination of radiant exposure of arc ignition radiation.

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Section: Introductionmentioning

confidence: 99%

Ignition of Welding Arc and UV Actinic Hazard Evaluation

Rybczyński¹,

Wolska

Wisełka

et al. 2019

Energies

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“…For this work, we choose a more practical approach. The aim was to check the comparability of spectroradiometers (and radiometers) within the European occupational safety community in their actual state to account for every day usage with UV radiation sources like lamps or welding arcs [16,17] and to allow the reader to decide on his own which device to use for what purpose (laboratory or field measurements). Consequently, the present article does not deal with the topic of measuring uncertainty but with an intercomparison of five different types of spectroradiometers regarding their measuring accuracies of absolute UV irradiance and their wavelength misalignments.…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet spectral irradiance measurements: an intercomparison of spectroradiometers in laboratory combined with a workplace field test

et al. 2018

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Ultraviolet (UV) irradiance measurements are usually associated with large inaccuracies and uncertainties complicating the comparability of corresponding measurement equipment and its data. For supervisors or safety experts, though, it is mandatory to measure reliable UV irradiances with regard to occupational safety regulations. The following work aims at an intercomparison of five different types of spectroradiometers regarding their wavelength alignment and irradiance accuracy in the UV spectral region that provides the reader with information on how to determine and compare the measurement accuracies of their own devices. In a first step, measurements of two UV irradiance standards, a deuterium and a halogen lamp, were carried out. The percentage deviations of the measured total UV irradiances from their calibrated ones are smaller than ±10% for all spectroradiometers. The quality of wavelength accuracy as well as of the spectral bandwidth, both investigated by means of a low pressure mercury argon lamp are consistent with those stated by the manufacturers. In a second step, UV radiation from a metal active gas welding arc was examined at three distances in combination with a variation of welding current and arc length to check the behaviour of UV irradiance accuracy in field. The overall averaged standard deviation of these field measurements for all CCD array detectors is given by ±8%. For high welding currents this accuracy decreases to ±21%.

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Selected measurement problems during the evaluation of occupational exposure to UV radiation emitted by the welding arc

Cited by 2 publications

References 7 publications

Ignition of Welding Arc and UV Actinic Hazard Evaluation

Ignition of Welding Arc and UV Actinic Hazard Evaluation

Ultraviolet spectral irradiance measurements: an intercomparison of spectroradiometers in laboratory combined with a workplace field test

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