DSH 364 Terminals for external circuits

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DSH 364

Terminals for external circuits 7 C' C! ~4 c8 O, n

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1.1.1.1 Standard:
IEC 61010-1:1990 +A1:1992 + A2 :1995
1.1.1.2 Sub clause:
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1.1.1.3 Subject:
  Q' D7 m( W, v6 L3 m3 `. W. T2 mTerminals for external circuits
Key words:
- 4mm plugs
- CAT III (300V)
- CAT II (600V)
; \0 u4 r  }; a) C8 K3 iProvisional decision taken by ETF3 and confirmed by CTL at its 38th meeting, in Toronto
Question:
For CAT III (300V) or CAT II (600V) a distance between Live metal parts and accessible parts should be 6.5 mm. In practice with touch-safe 4mm plugs this distance is not maintained (mostly 6 mm, see drawing attached). How do test houses deal with this?
0 f. @) r' {1 U! E8 b* @* Z# lDecision:
1 E( }- y+ u8 {: X* m& {Where test leads are provide as part of equipment under test then the leads must also comply with IEC61010. If test leads are not part of the equipment under test then the user handbook must say that the leads to be connected to the equipment shall also comply with IEC61010 requirements, i.e. 6.5mm requirement shall be met.
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