Comparison of dielectrical properties of LV cables with different fire barriers ensuring circuit integrity under fire conditions at high ambient temperatures

Lelak, Jaroslav; Sulova, Janka; Valach, Rastislav; Kment, Attila; Pípa, Marek

doi:10.1109/diagnostika49114.2020.9214634

Cited by 2 publications

(1 citation statement)

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“…These articles describe the carrying out of experiments or numerical simulations on the propagation direction and velocity of the flame on a cable, the combustion temperature distribution, toxic gas diffusion, and other parameters, and they reveal the characteristics of cable fire [7][8][9][10][11][12][13][14]. Some experimental research studies and numerical calculations about cable failure have mainly focused on the direct fire protection of cables [15][16][17][18][19][20][21][22]. Polanský et al [15] used fire barriers made from mica glass tape and from ceramifiable silicone rubber to protect cables and to monitor the insulation state of cables during fire testing.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Delaying the Failure Time of In-Service Cables in Trays by Using Fire-Retardant Coatings

et al. 2021

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Improving the fire resistance of the key cables connected to firefighting and safety equipment is of great importance. Based on the engineering practice of an oil storage company, this study proposes a modification scheme that entails spraying fire-retardant coatings on the outer surface of a cable tray to delay the failure times of the cables in the tray. To verify the effect, 12 specimens were processed using five kinds of fire-retardant coatings and two kinds of fire-resistant cotton to coat the cable tray. The specimens were installed in the vertical fire resistance test furnace. For the ISO 834 standard fire condition, a fire resistance test was carried out on the specimens. The data for the surface temperature and the insulation resistance of the cables in trays were collected, and the fireproof effect was analyzed. The results showed that compared with the control group, the failure time of the cable could be delayed by 1.57–14.86 times, and the thicker the fire-retardant coatings were, the better the fireproof effect was. In general, the fire protection effect of the fire-retardant coating was better than that of the fire-resistant cotton.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Delaying the Failure Time of In-Service Cables in Trays by Using Fire-Retardant Coatings

et al. 2021

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Assessment of Aircraft Coating Resistance to Lighting Strikes and Long-Term Environmental Impact

et al. 2023

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During an aircraft’s flight through the atmosphere, the aircraft structure interacts with the surrounding environment. One of the potential hazards that can occur is a lightning strike to the structure covering. Subsequent damage to the aircraft covering may cause safety risks, so it must be removed. This paper describes a method of producing an electrical discharge that simulates the effect of lightning on metallic and non-metallic types of aircraft coverings upon which various types of paint coatings are applied. The electrical discharge hits the coating samples and, based on the material and type of paint used, causes damage. The coatings were later tested in a salt chamber according to STN ISO 9227:2017, and were photodocumented at various time intervals and subsequently analysed. The salt chamber test exposes the material to adverse conditions, which, in relation to the damaged coating, cause corrosion of the material, which depends on the extent of the damage and the type of material. The paper concludes that metallic aircraft coating samples allow less damage to aircraft coverings after a lightning strike, which is linked with less required maintenance associated with financial and time costs.

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Comparison of dielectrical properties of LV cables with different fire barriers ensuring circuit integrity under fire conditions at high ambient temperatures

Cited by 2 publications

References 1 publication

Experimental Study on Delaying the Failure Time of In-Service Cables in Trays by Using Fire-Retardant Coatings

Experimental Study on Delaying the Failure Time of In-Service Cables in Trays by Using Fire-Retardant Coatings

Assessment of Aircraft Coating Resistance to Lighting Strikes and Long-Term Environmental Impact

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