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ÇѱÛÇ¥Áظí Àü·Â¼±¿¡ ÀÇÇÑ Åë½Å¼± ÀüÀÚÀ¯µµÀü¾ÐÀÇ ½Ã¼³ À¯Çüº° Â÷Æó °è¼ö °è»ê ¹æ¹ý
¿µ¹®Ç¥Áظí The Calculation Method of Shielding Coefficient by the Types of Installation to the Electromagnetic Induction Voltage of Telecommunication Line by a Power Line
Çѱ۳»¿ë¿ä¾à À¯µµÀü¾Ð¿¡ Â÷Æó ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â ½Ã¼³·Î¼­´Â ¼±·Î µµÃ¼¿Í Åë½Å ÄÉÀ̺íÀÇ ½¬½ºÃþ, öµµÀÇ ±Ëµµ µîÀÌ ÀÖ´Ù. À̵鿡 ÀÇÇÑ Â÷Æó °è¼ö¸¦ °è»êÇÏ´Â ¹æ¹ýÀ» Á¦°øÇÑ´Ù. Åë½Å ÄÉÀ̺íÀÇ °æ¿ì ¿©·¯ ¿ÜÇÇ ´Ù¹ß¿¡ ÀÇÇÏ¿© ±¸¼ºµÉ ¼ö Àֱ⠶§¹®¿¡ ÀÌ·¯ÇÑ °æ¿ìÀÇ Åë½Å ÄÉÀ̺í Á¶¼ö¿¡ ÀÇÇÑ À¯µµ °æ°¨ °è¼öµµ Æ÷ÇԵȴÙ. Àü·Â¼±ÀÇ °íÀå Àü·ù ¹ß»ý ½Ã¿¡´Â Áö¶ô ȸ·Î°¡ »ý¼ºµÊÀ¸·Î ÀÎÇÏ¿© À¯µµ Àü·ùÀÇ ¹æÇâÀÌ ºÐ»êµÇ¾î ³ªÅ¸³ª´Â ºÐ·ù È¿°ú¸¦ °è»êÇÏ´Â ¹æ¹ýÀ» Á¦°øÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à There are a conductive line, sheath layer of telecommunication line and rail road which can give shielding effect to an induced voltage. This standard gives calculation methods of shielding coefficients by those facilities.
A telecommunication cable can consist of several group of inner cables. Interrelationship of those cables also can give a redution effect to an induced voltage. A calculation method of this case is also provided.
Bidirectional current effect can be generated when a power current gets in a fault state becuase opposite direction of current rises to also opposite electromagnetic forces to a telecommunication line. The effect is also reflected.
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