대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1990년도 하계학술대회 논문집
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- Pages.304-307
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- 1990
22.9kV CN/CV 전력 케이블의 상시 허용전류에 관한 연구
A study on the continuous permissible current rating in 22.9kV CN/CV underground distribution power cables
초록
Referring to the calculation of the continuous permissible current rating in 22.9kV CN/CV underground distribution power cables, the current and temperature have been fully discussed and analyzed based on their three different values: one is the actually measured value throughout our test and the other two are calculated in connection with different specifications IEC-287 and JCS-168-D respectively. For this purpose, our test has been carried out with real cables which have been under stress either with induced current or with rating voltage. In the former, the calculated current of IEC-287 shows closer value to the measured one than that of JCS-168-D does. In the latter, there has been little difference on the temperature comparing with that measured without voltage application. Therefore, we think that it is preferable to choose the IEC-287 specification for the calculation of the continuous permissible current rating in the commercially power cables.
키워드