标题: DSH 381 Affect of adhesive on Comparative Tracking Index (CTI) of Insulating [打印本页] 作者: 小米 时间: 2012-11-6 17:37 标题: DSH 381 Affect of adhesive on Comparative Tracking Index (CTI) of Insulating
Affect of adhesive on Comparative Tracking Index (CTI) of Insulating Tape * _2 y: j2 u8 V0 F
2.9.3, Table 6, Condition 2 ! Q+ A1 }6 W. T# j0 C
60950(ed.2) & 60950(ed.3) ) j. F3 o- G' E5 }) r1 z# A4 c5 c
5 l. i4 ^" j0 @' @8 k
Standard: ( D6 C- o- P7 g, V/ b& Z* D' o$ D8 w5 ]IEC60950, 2nd and 3rd1 U' d% P2 h8 P7 g
Sub clause: & l- P p7 K( i, X0 j0 i# C! |2.9.3, Table 6, Condition 2 ( t/ j" Y) M$ R1 RSheet n. 381 & S6 k) t5 n$ @( j, \! x' \7 P6 ~Page 1 (1) ! E2 N) D4 U+ ~/ v" W: j$ pSubject: + N) }. G! j% [Affect of adhesive on Comparative% |; f3 P4 y7 ^2 e
Tracking Index (CTI) of Insulating . `7 L6 |; U9 h( yTape 5 p; b9 {' m S7 b9 e& dKey words:9 n' n' M6 }5 l4 l( X: b
-comparative tracking index* \; ?' Z0 H2 M3 G
-CTI7 v3 d! S! m5 I" F7 Q6 h( \
-insulating tape9 @6 \& b" r4 [6 [& g
-adhesive3 M- m) v9 d1 ~: P0 ]( v
Decision confirmed 4 u* R& u; @/ f# _" P% Pat CTL 38th meeting ) n# B; A& M# L& a* }Question: 4 ?. M9 i; G4 r2 v) O" g! b0 nThe measured Comparative Tracking Index (CTI) for an insulating tape with adhesive : H6 l0 c/ p, d/ S0 jpresent can be different from that for the insulating tape without the adhesive present. The " u. U# B) e- ~1 `. ocreepage distances to be applied depend upon the CTI of the insulating material. 0 t2 V+ Q: g& d" k2 R% bShould the presence of adhesive on the insulating tape be considered in determining the CTI& ?" d( a2 C) v. x. e
when determining the creepage distances requirements to be applied?5 b) H, P# H% h, u1 p/ m4 O' `: w
Decision: / m0 W9 M' H8 p' {& IYes.0 U7 O( u4 j+ s% J
DSH 381( C- s/ i7 \+ q