Overheating of Underground Power Cable Line Due to Its Partial Exposition to Solar Radiation

Czapp, Stanisław; Ratkowski, Filip; Szultka, Seweryn; Tomaszewski, Adam

doi:10.1109/mmar.2019.8864691

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…The lack of accurate measurement data regarding solar radiation incident on the surface of the earth [23] caused that the heat flux density supplied from sun radiation is calculated for the sun's altitude of 45°, which is consistent with conditions in the Fig. 6…”

Section: Modelling Of the Thermal Condition Of Power Cables In Free Airsupporting

confidence: 52%

“…It consists of three power cables surrounded by air. The total number of the finite elements in the numerical grid exceeds 16×10 6 . Heat is introduced to the cables from two different sources: from the electric current to internal surface of the cable insulation and also from solar radiation to half of the external surface of the cable (at the right side -see Fig.…”

Section: Modelling Of the Thermal Condition Of Power Cables In Free Airmentioning

confidence: 99%

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Risk of power cables insulation failure due to the thermal effect of solar radiation

Czapp¹,

Szultka²,

Ratkowski³

et al. 2020

Eksploatacja i Niezawodność – Maintenance and Reliability

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Article citation info: IntroductionDistribution of power in power networks is performed with the use of overhead power lines as well as underground power cables. The investment cost of the underground power cable distribution systems is higher compared to the use of overhead lines but gives higher reliability of supply, especially reflected in improved SAIDI and SAIFI indicators [1,19,24].Power cables are usually buried in the ground, but in many cases, their ending sections are placed in air, to be connected with conductors of overhead lines, as it is presented in Fig. 1. Depending on the height of the pole, length of the power cables in air can be from a few to several meters. Given that the cable section in the air is connected in series with a section buried in the ground, the ampacity of the whole power cable line depends on the section for which thermal condition for heat transfer from the cables is the worst. The worst thermal condition is expected for the section in air, during sunny weather and without any wind.The problem of power cables heating and calculation of their ampacity are the subject of many papers and standards, especially [12-

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Section: Modelling Of the Thermal Condition Of Power Cables In Free Airsupporting

confidence: 52%

Section: Modelling Of the Thermal Condition Of Power Cables In Free Airmentioning

confidence: 99%

Risk of power cables insulation failure due to the thermal effect of solar radiation

Czapp¹,

Szultka²,

Ratkowski³

et al. 2020

Eksploatacja i Niezawodność – Maintenance and Reliability

Self Cite

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“…In case of cables overheating, dioctyl phthalate (DOP) and 2-ethylhexanol (2-EH) are normally released well before the burning event. Interestingly enough, an increased risk of overheating has also been reported for underground cables used for distribution networks if they partly come from overhead cables, especially in the case of solar exposition [ 20 ]. From the point of view of air pollution, both in case of overheating and in case of burning, the most appropriate equipment to detect specific air pollutants is FTIR, XPS, gas chromatography, and other similar techniques.…”

Section: Network Components Malfunctions and Specific Emissionsmentioning

confidence: 99%

Electric Transmission and Distribution Network Air Pollution

De Vito,

Del Giudice,

Di Francia

2024

Sensors

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There is a consensus within the scientific community regarding the effects on the environment, health, and climate of the use of renewable energy sources, which is characterized by a rate of harmful polluting emissions that is significantly lower than that typical of fossil fuels. On the other hand, this transition towards the use of more sustainable energy sources will also be characterized by an increasingly widespread electrification rate. In this work, we want to discuss whether electricity distribution and transmission networks and their main components are characterized by emissions that are potentially harmful to the environment and human health during their operational life. We will see that the scientific literature on this issue is rather limited, at least until now. However, conditions are reported in which the network directly causes or at least promotes the emissions of polluting substances into the environment. For the most part, the emissions recorded, rather than their environmental or human health impacts, are studied as part of the implementation of techniques for the early determination of faults in the network. It is probable that with the increasing electrification of energy consumption, the problem reported here will become increasingly relevant.

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A Combined Methodology of a Finite Element Method and a Sine Cosine Optimization Algorithm for Inversions of the Thermal Conductivity of Soil Around the High-voltage Cable Horizontal Pipe Jacking

Sun,

Fang,

Zhang

et al. 2024

2024 7th International Conference on Power and Energy Applications (ICPEA)

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Overheating of Underground Power Cable Line Due to Its Partial Exposition to Solar Radiation

Cited by 3 publications

References 9 publications

Risk of power cables insulation failure due to the thermal effect of solar radiation

Risk of power cables insulation failure due to the thermal effect of solar radiation

Electric Transmission and Distribution Network Air Pollution

A Combined Methodology of a Finite Element Method and a Sine Cosine Optimization Algorithm for Inversions of the Thermal Conductivity of Soil Around the High-voltage Cable Horizontal Pipe Jacking

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