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1996/04 - Subclause 22.42 Athens, November 1996, CLC/TC 61(SEC)10981 j6 W0 v2 x7 T! |+ b4 ~
CLC/TC 61(AT)260& z1 _- E' H7 B
Concerning Y2 capacitors used as protective impedance, the following applies for bridging insulations:
. l6 a4 p+ R3 i1 @a) Two Y2 capacitors (voltage proof 1 500 V,peak impulse 5 kV); combination Y2 (basic insulation) + Y2 (supplementary insulation)+ Z& U( w0 D4 h z5 ^
Not accepted.
' s4 z; J& v% p3 c5 y6 sAcceptance for two Y2 capacitors with voltage proof 2 500 V only" g# f% @+ H4 Z% k$ l- n3 r- \- @# z4 i5 I
b) Combination Y1 (basic insulation) + Y2(supplementary insulation)1 N9 z- I- q0 I4 T% U' \
Accepted for Y2 capacitors with voltage proof 2 500 V only
S- E% [- X3 M( ~' Qc) Combination Y2 (basic insulation) + Y1 (supplementary insulation)
' e& y) a L% p3 E. CAccepted (idem b)
/ V: y' L% A. u) [9 a+ V! Pd) Combination of three Y2 capacitors in series Not accepted |
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