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|  DSH 381
( }% ?+ z: _+ F2 w& T
3 X$ i, ]4 ]0 l3 N | Affect of adhesive on Comparative Tracking Index (CTI) of Insulating Tape
1 J- `; w( D p+ y( h* K6 ? | 2.9.3, Table 6, Condition 2
9 @( B! ]' T- S7 v& J" A' t | 60950(ed.2) & 60950(ed.3)' V! _) N) A6 Q8 x
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Standard:! r) a1 ^4 |( h4 V ?3 g9 [$ l
IEC60950, 2nd and 3rd& s* O: d8 u' L# v
Sub clause:
$ I9 w6 [. p8 e! N2.9.3, Table 6, Condition 29 P" |2 R$ i- A' e/ [1 V8 O
Sheet n. 381* X! B! d% A4 d- ^ T
Page 1 (1)9 I N" E# a+ V, x. P/ ~& [
Subject:
, Q6 j; @0 |. d5 e9 \+ tAffect of adhesive on Comparative
! t1 v4 a) v$ G: g0 |3 M( G" CTracking Index (CTI) of Insulating, a- ?1 l2 z6 v/ W$ D
Tape* A; j' V6 T" {# j" V5 L
Key words:
$ H& v7 i1 J, R2 `-comparative tracking index) c m6 S: X, X% E, u
-CTI; y o7 J# P, N% I2 P! ]
-insulating tape. P- x" p9 f5 W; i ^
-adhesive
" _+ T( T$ |$ {$ NDecision confirmed
! p$ L c! e% D+ e H' Y5 Z9 a/ dat CTL 38th meeting" T2 j& M# x) i# J2 s
Question:0 y! A: d Y- k$ W, b
The measured Comparative Tracking Index (CTI) for an insulating tape with adhesive1 J$ j$ @0 p& y; P2 p
present can be different from that for the insulating tape without the adhesive present. The* s1 a' v2 L- l( o
creepage distances to be applied depend upon the CTI of the insulating material.$ z/ J7 `% C# {7 {: ]" P" |0 h+ N
Should the presence of adhesive on the insulating tape be considered in determining the CTI
9 ]8 N9 C- W. F" {1 r4 Dwhen determining the creepage distances requirements to be applied?
1 c+ C, f( i/ v9 b g9 L1 WDecision:
" A$ a j; X- ]5 [) b- nYes.! A4 ]0 n/ H) s: I/ s1 e
2 L# M, d+ J3 S; v, b
: q1 V, N- q* }, C- R; t2 y6 E( H: c; W4 ~1 z- u
7 F/ Z5 _3 A" k. K
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发表于 2012-11-6 17:37
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