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Thermal effects of steel toe caps in footgear
Luleå tekniska universitet.
Luleå tekniska universitet.
National Institute for Working Life.
1999 (English)In: International Journal of Industrial Ergonomics, ISSN 0169-8141, E-ISSN 1872-8219, Vol. 23, no 5-6, p. 431-438Article in journal (Refereed) Published
Abstract [en]

This study investigated cold weather safety footwear and the possible thermal effects of steel toe caps in footwear. Two models of boots were used. Both models were manufactured in two variants - with and without steel toe cap. The boot insulation was measured with an artificial, heated foot (AHF). One model was used in experiment with subjects (n=6). Cold exposure consisted of sitting for 60 min at -10°C. There were no differences between insulation levels of boots with and without steel cap for one boot model, but the differences were statistically significant for the second model showing slightly higher insulation values for the boot without steel cap. No significant differences due to insulation dissimilarities could be found from the measurements on subjects. Statistically significant differences were found for both models regarding the rate of change of heat loss from AHF when its location was changed from warm to cold and back to warm. The rise and decrease of heat loss from AHF depended on the rate of temperature change of the boots. The results showed that a faster change in heat loss from AHF occurred for boots without steel toe caps. Data from subjects seemed to confirm this by a somewhat faster, though not significant, rise in toe skin temperatures after cold exposure in boots without steel toe caps. The effect may be attributed to the higher mass and heat contents of the boots with steel toe cap.

Place, publisher, year, edition, pages
1999. Vol. 23, no 5-6, p. 431-438
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
URN: urn:nbn:se:ltu:diva-10795DOI: 10.1016/S0169-8141(97)00074-7ISI: 000078372700006Scopus ID: 2-s2.0-0345040632Local ID: 9a849180-d490-11db-8550-000ea68e967bOAI: oai:DiVA.org:ltu-10795DiVA, id: diva2:983743
Note
Godkänd; 1999; 20070317 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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