Perceived Electrical Injury: Misleading Symptomology Due to Multisensory Stimuli

Kroll, Mark W.; Ritter, Mollie B.; Perkins, Peter E.; Shams, Ladan; Andrews, C. J.

doi:10.1016/j.jemermed.2019.01.013

“…To the best of our knowledge, the finding that poor mental health is a risk factor for electrical shocks’ is new, and we have no suggestion for the mechanisms behind this circumstance, but a previous meta-analysis of agricultural injury studies showed an increased risk of injuries was associated with stress or depression, 46 and two meta-analyses showed a weak association between neuroticism and occupational injuries 10,11 . This may also be in line with the findings from a case-series where exposure to an electrical shock resulted in reporting of perceived symptoms, although the path of the current did not pass through the body and thus explained by Bayesian inference 47 . Although the literature describes a range of symptoms following electrical injuries, we were only able to identify persistent symptoms to a limited extent, even when stratifying the analyses to the most severe injuries.…”

Section: Discussionsupporting

confidence: 66%

“…10,11 This may also be in line with the findings from a case-series where exposure to an electrical shock resulted in reporting of perceived symptoms, although the path of the current did not pass through the body and thus explained by Bayesian inference. 47 Although the literature describes a range of symptoms following electrical injuries, we were only able to identify persistent symptoms to a limited extent, even when stratifying the analyses to the most severe injuries. The greatest differences in reporting of symptoms were seen when we compared symptoms before the electrical shock, to the week in which an electrical shock occurred, and as expected, the increase was greater for the most severe electrical shocks and among the most vulnerable participants.…”

Section: Discussionmentioning

confidence: 95%

Electricians’ Health After Electrical Shocks

Biering¹,

Nielsen²,

Carstensen³

et al. 2022

Journal of Occupational &Amp; Environmental Medicine

1

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Objectives: To examine whether demographic and health factors are associated with risk of electrical shocks and compared mental and physical health before and after an electrical shock. Methods: A 6-month cohort study of 6960 electricians involved weekly questionnaires regarding exposure to electrical shocks, and health. We examined the association between health and demographic factors and the risk of eventual electrical shocks and health before and after a shock Results: Youth and poor health were associated with risk of shocks. Reporting of numbness, cramps/spasms, tremors, tinnitus, dizziness, and flashbacks increased in the week of the shock, but only tinnitus and flashbacks persisted, as other symptoms receded. Severity, high voltage, cross-body exposure, wet entry/exit points, and direct current as well as health worries and/or neuroticism increased some estimates Conclusion: Electrical shocks are common, but rarely result in health effects.

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“…This leads to talk about the physical properties of these conduits and their tolerance to operating conditions and how to improve them. In the case of non-specialists work in the installation of these electrical conduits an electrical accident could happen, for example, hearing the sound and seeing the bright flash of an electrical arc can create the false impression that someone had experienced an electrical shock [8]. There are several ways and techniques to work on electrical conduits, whether underground or outside [9].…”

Section: Introductionmentioning

confidence: 99%

Impact of PVC mixtures of the Electrical Conduit on the Physical Properties

Esmail¹

2020

Journal of Natural Sciences, Life and Applied Sciences

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The use of PVC mixtures in the manufacturing of electrical conduit has been employed for a long time along with other materials. In this study, the impact of changing the ratio of the components of the PVC mixtures on the physical properties of the electrical conduit was investigated. The emphasis was placed on three properties: Density, Tensile Strength and Soft Point. The application of the electrical conduit controls the types of materials and their percentages. Physical properties of the PVC products are the most important factors that help to choose compared with other materials. These properties change with the change of the chemical components of the PVC mixture. The study discussed how to enhance and improve these properties by controlling the proportions of some substances in the PVC mixtures. This article aims to demonstrate the strong relationship between PVC polymer, calcium and stabilizers and the physical properties of the electrical conduit. The focus concentrated on three components in the mixture and three physical properties. Random samples were taken to calculate the average percentages of the components in the mixtures. Various tools and several statistical methods were used such as correlation coefficients and scatter charts to prove the relationship between the ratios of the materials and the respective properties. The correlation coefficients between the PVC polymer, stabilizers, calcium, and the density, tensile strength, vicat soft points were (0.92, 0.83, 0.82) respectively. Decreasing the PVC polymer by (17.1%) has caused an increase in the density of the conduit by (2%). Finally, the physical properties of PVC mixtures could be improved by changing component ratios to reach the optimized mixture for the specific application, taking into account other competitive issues such as the final price of the product, environmental impact, and other issues.

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“…These conduits are used by specialized technicians. In the case of non-specialists work in the installation of these electrical conduits an electrical accident could happen, for example, hearing the sound and seeing the bright flash of an electrical arc can create the false impression that someone had experienced an electrical shock [8]. The method of inserting wires and cables into electrical conduits ensures that they are protected from erosion and chemical agents and that wires are easily changed when needed.…”

mentioning

confidence: 99%

Impact of PVC mixtures of the Electrical Conduit on the Physical Properties

Esmail

¹

2021

FJES

0

View full text Add to dashboard Cite

The use of PVC mixtures in the manufacturing of electrical conduit has been employed for a long time along with other materials. In this study, the impact of changing the ratio of the components of the PVC mixtures on the physical properties of the electrical conduit was investigated. The emphasis was placed on three properties: Density, Tensile Strength and Soft Point. The application of the electrical conduit controls the types of materials and their percentages. Physical properties of the PVC products are the most important factors that help to choose compared with other materials. These properties change with the change of the chemical components of the PVC mixture. The study discussed how to enhance and improve these properties by controlling the proportions of some substances in the PVC mixtures. This article aims to demonstrate the strong relationship between PVC polymer, calcium and stabilizers and the physical properties of the electrical conduit. The focus concentrated on three components in the mixture and three physical properties. Random samples were taken to calculate the average percentages of the components in the mixtures. Various tools and several statistical methods were used such as correlation coefficients and scatter charts to prove the relationship between the ratios of the materials and the respective properties. The correlation coefficients between the PVC polymer, stabilizers, calcium, and the density, tensile strength, vicat soft points were (0.92, 0.83, 0.82) respectively. Decreasing the PVC polymer by (17.1%) has caused an increase in the density of the conduit by (2%). Finally, the physical properties of PVC mixtures could be improved by changing component ratios to reach the optimized mixture for the specific application, taking into account other competitive issues such as the final price of the product, environmental impact, and other issues.

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Perceived Electrical Injury: Misleading Symptomology Due to Multisensory Stimuli

Cited by 5 publications

References 32 publications

Electricians’ Health After Electrical Shocks

Electricians’ Health After Electrical Shocks

Impact of PVC mixtures of the Electrical Conduit on the Physical Properties

Impact of PVC mixtures of the Electrical Conduit on the Physical Properties

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