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% g/ r; D' e; I0 [6 g& C法規的7.1節有提到,EUT如果是連結到major feeders,要測試12 ohm,' w; }0 j2 o, j3 n
所以推論EUT定義安裝在OVC III以上,要測12 ohm,- P# A) Y! i* ]) X i: {' M
OVC I and II只要測試30 ohm.
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原文如下7.1 Test of power supply ports( U. E0 w5 Y' N7 P' J
The test voltage shall be applied through the coupling/decoupling network.
5 y$ n) L" u7 ~/ XIn general, the impedance of the test generator shall be as follows:$ z1 @) H K& L3 \& K+ M
– EUT ports connected to major feeders shall be tested with 12 Ω generator impedance;
% i7 S: g2 i( m% C– EUT ports connected to outlets shall be tested with 30 Ω generator impedance.& g2 K- ]3 M: D' t1 C1 q
Product committees may specify tests using either 12 Ω or 30 Ω generator impedance as
' j' t6 X% s% z4 ]' P% q' K& K' Lrequired.
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