文章基本信息

标题：Analysis of thermal characteristics of electrical wiring for load groups in cattle barns
本地全文：下载
作者：Doo Hyun KIM ; Sang-Ok YOO ; Sung Chul KIM 等
期刊名称：Industrial Health
印刷版ISSN：0019-8366
电子版ISSN：1880-8026
出版年度：2015
卷号：53
期号：6
页码：505-510
DOI：10.2486/indhealth.2014-0235
出版社：National Institute of Occupational Safety and Health
摘要：The purpose of the current study is to analyze the thermal characteristics of electrical wirings depending on the number of operating load by connecting four types of electrical wirings that are selected by surveying the conditions for the electric fans, automatic waterers and halogen warm lamps that were installed in cattle barns in different years. The conditions of 64 cattle barns were surveyed and an experimental test was conducted at a cattle barn. The condition-survey covered inappropriate design, construction and misuse of electrical facility, including electrical wiring mostly used, and the mode of load current was evaluated. The survey showed that the mode of load current increased as the installation year of the fans, waterers and halogen lamps became older. Accordingly, the cattle barn manager needed to increase the capacity of the circuit breaker, which promoted the degradation of insulation of the electrical wires’ sheath and increased possibility for electrical fires in the long-run. The test showed that the saturation temperature of the wire insulated sheath increased depending on the installation year of the load groups, in case of VCTFK and VFF electric wires, therefore, requiring their careful usage in the cattle barns.
关键词：Electrical fire;Cattle barn;Electric wiring;Thermal characteristics;Mode of load current