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這個部份在IEC 60065 ed.8 Clause 14.13有提到, 但看起來是說不可直接連Mains跟可接觸部分. `8 y3 z8 ?4 o% z/ h3 V, m4 Q
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Gastube也有相關要求
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( z) h8 d, q; W/ o9 s0 }有錯請請指正, 學習一下, 謝謝
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2 `/ p1 y1 l7 V! F# p/ l; C14.13 Surge suppression varistors
! c# K3 @! `, g8 D, W, ISurge suppression varistors used in order to prevent MAINS overvoltages coming into the! h$ S/ ~" d" n. c( h) n( P4 O
apparatus shall comply with IEC 61051-2. s6 H% K1 x+ z, o) Q
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Such components shall not be connected between parts connected to the MAINS and
1 o4 a9 J0 d% \: r, AACCESSIBLE conductive parts or parts connected to them, except for earthed parts of
; d/ W0 Q* B, m- O. H" WPERMANENTLY CONNECTED APPARATUS.
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Where a varistor in series with a Gas Discharge Tube (GDT) is used to bridge BASIC
4 H- Y9 F: j2 L: w7 C+ [INSULATION, the following applies:
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x9 m% u0 ~2 ?. D! _– the varistor has to comply with IEC 61051-2 as indicated below; and
) A/ C, f! s' t4 R6 z% y– the GDT has to comply with:
1 ^+ J* g/ ~& E• the electric strength test for BASIC INSULATION; and
5 ^& ]! w6 a P U7 H• the external CLEARANCE and CREEPAGE DISTANCE requirements for BASIC INSULATION.$ c+ Z% C$ n: I% ]
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