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: \- c" c2 H: x" e/ HStandard: IEC 60335-1:1991, 3rd Ed.
+ N0 I% j$ l2 J6 {2 PSub clause: 13.2 N F% ~" a7 z9 W# X5 N
Sheet No. DSH-482; V( u% A- D z' p0 A8 Q
Subject: Leakage current
5 j, m g9 p4 ~4 U. hKey words: - leakage current of appliances with a 3-phase heating element and a 1-phase motor.9 K2 t( @, ^+ Z& N% A. }
Decision taken at the 40th CTL meeting 2003
# a7 r; A2 P8 h1 u3 pQuestion:: L3 H) ?0 I4 }2 s& `9 q
How is measurement of leakage current for appliances with a 3-phase heating element and a
! }' O4 z# T8 t& Q+ @: B1-phase motor made?
. j9 M. m+ Z7 \+ v7 W' qRationale:8 w8 V% ^+ ]2 Y- o @2 _
See question.* u) A! q5 r7 y* T! _
Decision:
& J) N! |7 B5 ?5 a- KWhen using figure 6 or figure 7, only the switches in the phases other than the phase for the! P5 D0 M |' k5 p" e
motor are disconnected, if the construction of the appliance permits so. Otherwise all 3
5 K' Z3 o# N( _! B( A: l% D! p! Iswitches are disconnected in turn, the motor being separately supplied. Then the leakage' B& B5 B: U) \* Y7 W1 V
currents are measured separately and the values for the motor and the relevant phase for the
% U/ Y' I8 }$ d8 _heating element are added.
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