DSH 456 Insulating resistance and electric strength

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DSH 456

Insulating resistance and electric strength

16.4 ; |1 M8 Q8 ~/ N4 L- j8 Y6 v" ~6 L

60335-1(ed.2) ; l! A+ R8 \% o; a) n, i

Standard: IEC 60335-1:1976, 2nd Ed.
! ]3 n! }3 N; e; O; ?/ qSub clause: 16.4
& |& e  _* m" T4 |" L$ S5 H  ]4 uSheet No. DSH-456
2 C$ c9 y! B2 R- I) cSubject: Insulating resistance and electric strength
; x1 s/ ^- ~! P9 HKey words: - use of metal rod  - use of metal foils
/ `3 Q4 w) W, ]0 E& uDecision taken at the 40th CTL meeting 2003
Question:
* ?. x0 O, J( I7 C' T7 gDuring the electric strength test on cord guards and cord anchorages, should a metal rod or
8 p: j9 N* R" A' l. D' S* Lmetal foil wrapped around the cable be used ?
Rationale:
; }" d! @( t% o" P6 v' xSee question.
Decision:
! M5 w* ?  e. H$ L  m0 CIn case of doubt, the cable with the foil wrap is used for cord anchorages and a metal rod for
the inlet bushings.
The torque for the screw and clamping means should be 2/3 of what is stated in the table of
clause 28.


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