## 1 Introduction  
In grid-scale energy applications, high-voltage transmission systems play a critical role in efficiently transferring energy from energy sources to destinations with minimal electricity loss [1; 2; 3]. In these systems, sulfur hexafluoride (SF\({}_{6}\)), a synthetic fluorinated compound, has been widely utilized as an insulating gas to minimize electricity loss during transportation [4; 5]. Advantageously, SF\({}_{6}\) is gaseous under a wide range of operating conditions owing to its low boiling point [6; 7] and is extremely stable, even at temperatures higher than 500 \({}^{\circ}\)C [3]. As an insulating gas, SF\({}_{6}\) is beneficial in terms of its cost-effectiveness, facile manufacturing process, and recyclability [8]. Nonetheless, SF\({}_{6}\) is a greenhouse gas with a global warming potential of 23,900, indicating a capability of trapping infrared radiation much more efficiently than CO\({}_{2}\)[1; 5]. Consequently, to reduce the detrimental environmental impact, SF\({}_{6}\) should be replaced with less harmful insulating gases [2; 5; 9; 10]. Various efforts have been made to resolve this issue while maintaining a high dielectric strength similar to that of SF\({}_{6}\)[11]. A high dielectric strength is critical for insulating gases because they generally undergo electrical breakdown when a voltage exceeding the dielectric strength is applied [1; 2; 10; 12]. Fluorinated carbon compounds, such as dichlorofluoromethane and carbon tetrafluoride, have been shown to have high dielectric strengths compared to N\({}_{2}\)[13; 14]. Furthermore, metallic nanoparticles, such as Cu and Al, have been demonstrated to weaken the insulating strength of iodomethane, increasing the electronic conductivity and decreasing the resultant electrical breakdown voltage [14]. Recently, 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethylomethyl)-3-pentanone (also known as NOVEC 1230) was developed as a novel cofriendly insulating gas [15]. Under an electric field of a certain strength, electrons accelerated by the electric stress apply a force to the insulating gas, which releases free electrons that subsequently collide with other insulating gas molecules, resulting in ionization and electrical conduction through kinetic energy transmission [16; 17]. Consequently, the dielectric strength is regarded as a key parameter for estimating the electrical breakdown voltage of an insulating gas candidate before considering other critical parameters, such as liquefaction temperature, toxicity, chemical stability, dielectric constant, electron affinity, and byproduct phase [7; 12; 17; 18]. With the aim of identifying promising alternative insulating gases, a few studies have focused on effectively assessing the dielectric strengths of a broad array of insulating gas candidates [10]. For instance, the insulating performance of selected insulating gas candidates was evaluated based on previously reported experimental data [19; 20]. However, these experimental techniques are not suitable for rapidly evaluating the dielectric strengths of large sets of organic compounds [19; 21]. In this regard, high-throughput computational approaches have been suggested as an alternative for predicting the dielectric strengths of large numbers of organic compounds [21]. For example, [PERSON] et al. employed a density functional theory (DFT) modeling approach combined with a linear regression technique to predict the dielectric strengths of C\({}_{4}\)F\({}_{7}\)N, C\({}_{5}\)F\({}_{10}\)O, and HFO-type gases [19]. To achieve reliable predictions, they constructed an equation-based function that correlated dielectric strength with polarizability and ionization energy [19; 21]. This function was further developed by incorporating molecular weight as a novel parameter in the protocol and validated for a large set of perfluorocarbon (PFC) compounds, which generally have lower global warming potentials than SF\({}_{6}\)[20; 21; 22].