• Title/Summary/Keyword: Aged sleeve

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The Study on Aged Sleeves for Old Transmission Lines (노후 송전선로의 가공송전선 직선 슬리브 분석 연구)

  • Kim, Byung-Geol;Kim, Shang-Shu;Sohn, Hong-Kwan;Park, In-Pyo;Jang, Tae-In;Kim, Jin-Han
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.20 no.11
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    • pp.1009-1014
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    • 2007
  • A detailed study on aged sleeves for old transmission lines was carried out to clarify the deterioration of sleeves and the condition of installation. A lot of removed aged sleeves from transmission lines were investigated. Many biased installed cases and corrosion of steel sleeve part were found. These defects can cause a serious accident such as blackout during operating. The temperature distribution within sleeve of ACSR conductor was precisely measured and examined, conducted as part of series of studies on large currents in transmission lines. According to measurements of the conductor temperature near a joint(sleeve and clamp), the electrical resistance of joint is lower than that of the same length conductor. The detailed results were presented in the text.

The Study on Thermal Properties of Sleeve with Various Defects (시공유형에 따른 가공송전선 접속개소의 열적 특성 분석 연구)

  • Ahn, Sang-Hyun;Kim, Byung-Geol;Kim, Sang-Shu;Shon, Hong-Kwan;Park, In-Pyo;Kim, Sung-Kyu
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.11a
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    • pp.461-461
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    • 2008
  • According to previous report, aged sleeves for old transmission lines have various defect such as biased installation or corrosion of steel sleeve. These defects occupied almost 50 percent of investigated aged sleeves. The defects have been limited power capacity of transmission line. And it can cause serious problems such as rapid increasing of sag or falling out of overhead conductor from sleeve. This paper study on thermal behavior of sleeve with various defect model. The detailed results were presented in the text.

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The Study on Aged Sleeves for Old Transmission Lines (노후 송전선로의 가공송전선 직선 슬리브 분석 연구)

  • Kim, Byung-Geol;Kim, Shang-Shu;Ahn, Sang-Hyun;Sohn, Hong-Kwan;Park, In-Pyo;Jang, Tae-In
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2007.06a
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    • pp.538-540
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    • 2007
  • A detailed study on aged sleeves for old transmission lines was carried out to clarify the deterioration of sleeves and the condition of installation. A lot of removed aged sleeves from transmission lines were investigated. Many biased installed cases and corrosion of steel sleeve part were found. These defects can cause a serious accident such as blackout during operating. The detailed results were presented in the text.

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Study on Tension and Thermal Properties of Corrosive-fractured Steel Sleeve (강 슬리브 파단 직선 슬리브의 장력 및 열적 특성 분석 연구)

  • Ahn, Sang-Hyun;Kim, Byung-Geol;Kim, Sang-Shu;Sohn, Hong-Kwan;Kim, In-Pyo;Kim, Sung-Kyu
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.21 no.11
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    • pp.1036-1041
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    • 2008
  • According to previous report, aged sleeves of old transmission line showed several defaulted installation patterns, which was biased or corrosive-fractured of steel sleeve installed cases. These defects can cause serious accidents such as rapid increasing of sag or falling out of overhead conductor from sleeves. Consequently, the defects lead to the major power outage. Corrosion of steel sleeve is a typical defect by aging of sleeves. And it occupied almost 25 percent of investigated aged sleeves. This paper studied thermal properties and tension for ACSR conductor in case of fractured steel sleeve model by corrosion. The temperature distribution within overhead conductor has a specific gradient. Thermal properties of splice connectors(sleeve and clamp) showed normal behavior. However, mechanical properties were worse than normal sleeves. The detailed results were presented in the text.

The Study on Tension and Thermal Properties of Baised Installed Sleeve (편중 시공된 직선 슬리브의 장력 및 열적 특성 분석 연구)

  • Ahn, Sang-Hyun;Kim, Byung-Geol;Kim, Sang-Shu;Shon, Hong-Kwan;Park, In-Pyo;Kim, Sung-Kyu
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.1209-1210
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    • 2008
  • According to previous report, aged sleeves for old transmission lines have variable defects such as biased installed case or corrosion of steel sleeve. Biased installed sleeve occupied 20 percent among the investigated aged sleeves. This defect must cause local heating of splice connector and limit power transmission capacity. It even inspire falling out of overhead conductor from sleeves. This paper studies thermal properties and tension for ACSR conductor in case of biased installed sleeve model. The detailed results were presented in the text.

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The Study on Tension and thermal properties of Corrosive-fractured Steel Sleeve (강 슬리브 파단 직선 슬리브의 장력 및 열적 특성 분석 연구)

  • Ahn, Sang-Hyun;Kim, Byung-Geol;Kim, Shang-Shu;Sohn, Hong-Kwan;Park, In-Pyo;Kim, Sung-Kyu
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.06a
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    • pp.104-105
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    • 2008
  • According to previous report, aged sleeves of old transmission line showed several defaulted installation patterns, which is biased or corrosive-fractured of steel sleeve installed cases. The latter case occupied almost 25 percent of investigated aged sleeves. These defects can cause serious accidents such as rapid increasing of sag or falling out of overhead conductor from sleeves. This paper studies thermal properties and tension for ACSR conductor in case of fractured steel sleeve model. The detailed results were presented in the text.

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슬리브 시공유형별 기계적 및 열적 가속열화특성 분석 연구

  • An, Sang-Hyeon;Kim, Byeong-Geol;Kim, Sang-Su;Son, Hong-Gwan;Park, In-Pyo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.11a
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    • pp.286-286
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    • 2009
  • According to previous report, aged sleeves for old transmission lines have various defect such as biased installation or corrosion of steel sleeve. These defects can cause serious accidents such as rapid increasing of sag or falling out of overhead conductor from sleeves. Moreover, the defects have been limited power capacity of transmission line. This paper study on mechanical and thermal behavior of ACSR $410mm^2$ conductor and sleeve with various defect model. The conductor has been aged artificially for 50 years. The detailed results were presented in the text.

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Comparison of adhesive and non-adhesive manufacturing methods of men's jacket - Focusing on men's jacket aged 30 to 49 - (남성 재킷의 접착 제작방식과 비접착 제작방식 비교 - 30~49세 남성 재킷을 중심으로 -)

  • Dong Kuk Kwon
    • The Research Journal of the Costume Culture
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    • v.31 no.6
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    • pp.738-755
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    • 2023
  • The purpose of this study is to provide basic data for the production of jackets with high fit by comparing and analyzing the adhesive and non-adhesive production methods of men's jackets. An analysis of the manufacturing method showcased differences between the adhesive and non-adhesive manufacturing methods in the cutting and wick attachment method, the shape and attachment method of the chest reinforcing wick, the sleeve attachment method, and the shoulder pad and sleeve reinforcing cloth attachment method. In evaluating the outfit, the overall fit of the shoulder, the fit of the chest, and the fit of the armpit were found to be high in the non-adhesive production method. In evaluating appearance evaluation, the front shoulder, chest, and sleeve overall appearance showed a high non-adhesive production method. Therefore, in order to increase the wearability of the shoulder pad and the the attachment method of the upper sleeve reinforcing cloth, the non-adhesive production method should be used, and in order to increase the overall wearability and armpit wear of the chest, the difference in the attachment method, and the reinforcement method of the armhole should be used. In addition, to increase the appearance of the jacket, non-adhesive production methods such as differences in wick attachment methods, shoulder pads, sleeve reinforcing cloth, and sleeve attachment methods should be used.

Effects of Perceived Body Type and Ideal Age on Satisfaction with Fit of Ready-to-Wear among Middle-aged Woman (중년여성의 신체지각과 이상적 연령에 따른 기성복 맞음새 만족도)

  • 주재은;정찬진;정명선
    • The Research Journal of the Costume Culture
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    • v.9 no.5
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    • pp.723-733
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    • 2001
  • The purposes of this study were 1) to examine the effects of the difference between actual and perceived body type and body cathexis on satisfaction with fit and 2) to identify the effect of the difference between chronological and ideal age of middle-aged woman on satisfaction with fit of ready-to-wear. For this study, questionnaires were administered to 500 middle-aged woman in Kwangju. Employing 402 respondents, data were analyzed by using $X^2$-test, t-test and Pearson Correlation. The results were as follows; 1) There were significant differences between actual and perceived body types among middle-aged women. Those who were inconsistent with actual and perceived body types had a tendency to perceive themselves to be obeser than actual body. 2) Those who were inconsistent with actual and perceived body types had a lower satisfaction level with apparel fit sites at jacket length, hip width, crotch length and waist width than those who were consistent with actual and perceived body types. 3) Correlation for body cathexis and satisfaction with fit of ready-to-wear was significantly positive. 4) There were significant differences between chronological and ideal ages. 5) Those who were inconsistent with chronological and ideal ages had a lower satisfaction level with apparel fit sites at neckline, shoulder width, bust, sleeve length, sleeve width, Jacket length, waist width, hip width and skirt length than those who were consistent with chronological and ideal ages.

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A Study on the Bodice and Sleeve Patterns for Middle-aged Women (중년여성을 위한 기본 원형설계)

  • 정혜락;함옥상
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.1
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    • pp.105-115
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    • 2000
  • This study was intended to find body pattern of middle aged women and make new experimental basic pattern for upper-half of the body for them. This experimental pattern on the idea of body pattern analysis was prepared. For experimental pattern, the prototype basic model was chosen with the best qualified D model from the four meaningful existing patterns. After several steps of correction experimental pattern was made. Comparing with basic D model, the new experimental pattern composed of additional bust girth by 1cm, wider back waist by 0.5cm than front waist and additional armhole by 0.5cm keeping the same size for back and front widths. Making a shoulder line up by 3cm the armhole became deeper accordingly and the room for girth has been transferred to length. Front neck girth became deeper downward but back neck girth risen a little bit. Side line of the bodice formed with inward slope taking from the waist line by 2cm. Instead of dart, modified side line slope was more practical by its function and appearance. Abdominal girth which is lower than waist girth by 8.5cm kept in same size with bust girth. Then abdominal girth became more comfortable. New experimental pattern with changes has been examined in function and appearance. In conclusion, the new experimental basic pattern for the middle-aged women has been proved more practical for both in bodice and sleeve than other existing ones in terms of function and appearance.

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