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송재주,이정철,임성훈,고석철,한병성,Song, Jae-Joo,Lee, Jung-Choi,Lim, Sung-Hun,Ko, Seok-Cheol,Han, Byung-Sung 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.10
Various stresses (such as electrical stress, mechanical stress, environmental and electrochemical stress, and defects of structure) result in insulation degradation of epoxy mold type insulators. Since the insulation degradation of BCT(Bushing Current Transformer) and bushing proceeds during fabrication process or operation time due to these causes, various methods to reduce the degradation in their insulation ability have been suggested. In this paper, we investigated surface temperature increment of these insulators due to PD(partial discharge). After the voltage applied into the insulator to generate the artificial PD, the surface temperature of the insulator was measured with non-contact thermometer using infrared rays. It was confirmed through the analysis based on PD experiments that the procession in the insulation degradation of the insulator could be estimated through the measurement of the surface temperature in the insulator.
야간경관 조명을 통한 이미지 창출에 관한 연구 : 순천시를 중심으로 in case of Suncheon City
송재주 順天靑巖大學 2000 論文集-順天靑巖大學 Vol.24 No.-
Lighting facilities of night in cultural assets, architecture and a park bring to increase coming tax and quality of life for citizen with development of sightseeing rsources. which need effort and thinking of politician in the city hall and require a decide of resolute about investment of the first stage. the other hand, we must consider background of historical, inheritance of cultural, utilization of citizen, and emotion of regional, presentation of circumstance illumination, and must consider positive adaptation about place of illumination facilities, illumination method, and a kind of illumination.
카본 도포에 따른 Cu-Epoxy 접촉면에서 발생하는 크랙방지에 관한 연구
송재주,김성훈,황종선,박종광,한병성 한국전기전자재료학회 2001 전기전자재료학회논문지 Vol.14 No.7
The bushing for high voltage and large and power should endure weight of itself and force of pushing from contact with circuit breaker. Like this, epoxy mold bushing has to be strong without fault. However, the external circumstances and internal factors was caused by partial discharge, flashover and dielectric breakdown. Therefore, to remove external factor of defect and to prevent the internal cracks and cavity generated from the contraction on interface of Cu-Epoxy, we should form semi-conductive layer on Cu bar by carbon. Then, the PD properties and the insulation qualities of epoxy mold type bushing was able to improved by roles of cushions for the direction of diameter and by effects fo natural sliding like as separated from conductor for the direction of length. So, in this work, we could prove the method of semi-conductive layer in making the long conductor.
주사침 찔림 사고 예방을 위한 감염성 의료폐기물 처리방식 연구1
송재주,김경완,변선미 한국치위생감염관리학회 2018 한국임상치위생학회지 Vol.6 No.2
Objectives: The purpose of this study was to improve the method of separating syringes and needle sticks from contaminated needles or putting them together in a disposal container to prevent sharp injury to clinician. Methods: In the test, a needle-melting device (needle smelter, Neo Top, Korea) was used. To check whether the needle was melting rapidly, the melting time was measured in relation to the rate of insertion of the needle in the hall of the melting apparatus. To confirm the sterilization of the used needle residues after using the needle-melting device, the sterilization experiment was performed using Bacillus subtilis. Sterilization was analyzed on the basis of the rate of decrease in the number of Bacillus subtilis. Results: The average time taken to melt all the needles used in the test depends on the insertion rate. However, on average, it could be melted within 2 to 3 seconds. After testing for the presence of infectious virus in the needle residues after melting, more than 99.9% of sterilization was possible. Conclusions: To prevent infections caused by needle stick sharps injuries, we propose to improve the infectious-waste disposal method by melting the needle safely and sterilizing it differently from the conventional method.