CAJ | 학술논문

为确保DCS机柜220 V AC电源电缆长期可靠运行，需确认电缆的导体温升是否满足电缆规格书中的要求。根据现场实际情况分析，并基于数值传热学原理建立了保守模型对电缆托盘上电缆导体温升进行包络计算。计算结果表明，目前的电缆托盘上的电缆敷设情况不会导致电源电缆导体的温升超过电缆技术规格书的要求。
위학보DCS궤거220 V AC전원전람장기가고운행，수학인전람적도체온승시부만족전람규격서중적요구。근거현장실제정황분석，병기우수치전열학원리건립료보수모형대전람탁반상전람도체온승진행포락계산。계산결과표명，목전적전람탁반상적전람부설정황불회도치전원전람도체적온승초과전람기술규격서적요구。
In order to ensure a long‐term reliable operation of the DCS cabinet ’s 220 V AC power cable ,it was needed to confirm whether the conductor temperature rise of power cable meet the requirement of the cable specification .Based on the actual data in site and the theory of numerical heat transfer ,conservative model was established ,and the conductor temperature was calculated .The calculation results show that the cable arrangement on the cable tray will not lead to the conductor temperature rise of power cable over than the required temperature in technical specification .