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| Risk of corrosion resulting from contact between earthing terminal and the copper of earthing conduc ...$ F0 x3 c+ ]7 o v& E
| 27.4
' y. F$ @+ [9 q/ \ | 60335-1(ed.3)+ n# X( ^1 N/ C0 V: b& K. R
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. n. }$ F# f/ V) BStandard: IEC 60335-1:Ed. 3.0 Sub clause: 27.4 Sheet n. 2764 }( {8 y+ E4 W; q4 ~$ y
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2 {( \: e0 Q( ]/ X" ?) `( N0 nSubject: Risk of corrosion resulting from contact between earthing terminal and the copper of earthing conductor
0 S3 _% D* r- M2 u' @: x, @% nKey words:3 m z5 \1 k# }1 a/ c
- corrosion
% @! z# ]; p. d1 q. h$ D- earthing) ]5 V+ a. t* V$ F+ v, w6 q' n. Y
- electrochemical potential
, B$ r1 F& U/ s6 a0 M% GDecision n. 20 taken at 36th meeting/1999
, M% k1 V! x b# W! t- L6 g1 LQuestion: The checking of the risk of corrosion resulting from contact between earthing& D: U( A# Y A8 S/ X+ Z
terminal and the copper of the earthing conductor or other metal parts is not always# f/ s/ C. z1 s, V0 O O
easy to perform only by inspection, and some standards (e.g. IEC60950:1990, annex8 n! a. }" F# o
J) make reference to the table of electrochemical potential.7 i/ s+ Q0 C: e2 v0 C
Does this table may be used , and what are the practises to check compliance to this
8 k9 B" w, T/ ?7 lrequirement ?; \+ z$ V) _9 L5 `
Decision: Table of electrochemical potential may be used to verify compliance with* l# }, @* k0 y2 W# [$ o2 e( D+ v! U# ^
requirement of 27.4.
^1 ~2 C3 I! r( R; W+ b! d: eInformation given by the manufacturer may be also acceptable to verify compliance.
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