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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
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3 l1 H) [/ S/ u; |/ V$ t: sGastube也有相關要求
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* s% u4 i' q+ S9 g) l" Z有錯請請指正, 學習一下, 謝謝
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14.13 Surge suppression varistors/ {6 h8 Y7 G5 v! h1 y; w& x. a2 S
Surge suppression varistors used in order to prevent MAINS overvoltages coming into the, z2 ~) Y7 a8 v/ O1 o& w
apparatus shall comply with IEC 61051-2.
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Such components shall not be connected between parts connected to the MAINS and" x0 B4 @; j+ z, ]
ACCESSIBLE conductive parts or parts connected to them, except for earthed parts of6 n. t, k3 ~9 ^& G ^$ y
PERMANENTLY CONNECTED APPARATUS.
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Where a varistor in series with a Gas Discharge Tube (GDT) is used to bridge BASIC
6 e0 T# H% a/ Z( G* a" t# WINSULATION, the following applies:
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1 f K" y6 p, N: e; C8 r– the varistor has to comply with IEC 61051-2 as indicated below; and0 d/ D1 R5 v& i0 G2 r* S
– the GDT has to comply with:/ w! `7 |% M; j$ _, m+ C$ G
• the electric strength test for BASIC INSULATION; and
) O* b: [% N) Q& {4 ~: Y4 c! ]+ h• the external CLEARANCE and CREEPAGE DISTANCE requirements for BASIC INSULATION.
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