IEC 규격 전선의 허용전류 산정방법

1 IEC 1. IEC . o KS . (WTO/TBT) KS (IEC) IEC KS C IEC 60364-5-52 .. 1) 2004-850 ( ) 5 2 .2004. 11. 10.. 1. ( ) .2. ( )KSC 3328(600V 2 , 2002-1747 ), KSC3330( , 2002-1747 ), KSC 3611(600V , 2002-1747 ), KSC3323(600V , 2002-1747 ) 01( ) 2006.

2 6. 30 .- 2 - 2) 2005-1 (2001. 1. 10) 6 [ ] IEC , KS . , IEC .1. KS C IEC 60364-5-52(2004) .2. KS C IEC 60364-5-52(2004) .. KSC3323 (VV)' 30 KSC3328 450/750V (HIV) KSC3330 (CVV) KSC3611 (CV) 1) ( KS ) (IEC ) 2006.

3 6. 30 . 2) 2006. 7. 1 (IEC ) .. 1) CV , 2006. 6. 30 2) VV, HIV, CVV, CV 2006. 6. 30 , - 3 -2. o KS C IEC 60364-5-52(2004) . IEC (XLPE ) KS C 3611 (CV ) [ ] I[A](k=143)* : 1 * 1 [ ] I[A](k=134) , , , , , , , , 15021, 15020, , , , 400 57, 40053, 500 71, 50067.

4 I= [A] I : [A] k : , . IEC XLPE k=143( 90 C, 250 C) . KS C 3611 CV k=134( 90 C, 230 C) A : [ ] t : [ ]( 1 )- 4 -3. KS C IEC 60364-5-52(2004) . 1) KS C IEC60364-5-52 2) KS C IEC60364-5-52 3) KS C IEC60364-5-52 4) . KS C IEC 60364-5-52 1) o 1.

5 O ( ). o . 2) o ( ) 1 . ( C) 1) (PVC)2) (XLPE) (EPR)70 90 3) (PVC )4) ( )70 105 1.. 1. KS C IEC 60364-5-52 52-4(52-A) . 2. VV, CVV, IV ( ) 70 C , CV, HIV, FR-3, FR-8 ( ) 90 C 3) o ( : , , , , , ) 1.

6 - 5 - 4) (IEC 60364-5-52 ) o . o - ( ) : 30 C - : 20 C o . , 25 C . o . , iec 60287 . o 2 . 2. [ C] PVCXLPE EPR PVCXLPE EPRPVC (70 C) (105 C) HIV XLPE - 6 - 5) (IEC 60364-5-52 ) o.

7 - ( : ) . o K m/W 3 . 3. ( ) ( ) 1. 5 % . 2.. iec 60287 . 3. m . 6) (IEC 60364-5-52 ) o (group reduction factors) o.

8 O 30% , . o 100 % . 100 % . o , , , . , F : , n : - 7 - 4. ( ) 123456789121620 9 1.

9 2. 2 , . 3.. - 2 3 - 4. 2 3 , , 2 2 , 3 3 . 5. n , 2 n/2 3 n/3 . 6.. 5 % . 7. , 8 ~ 9 . 5. ( ) (a)*0( )1( ) * * m, .. 10 % ( iec 60287 -2-1 ).

10 - 8 - 6. A. 1 (a)(1)0( ) (1) m, .. 10% . iec 60287 . B. 1 2 3 (a)0( ) m, .. 10% . iec 60287 .- 9 - 123469 ( 3.) ( 4.) , ( 3.) 1.. 5 %.