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法規的7.1節有提到,EUT如果是連結到major feeders,要測試12 ohm,) r g( B% i7 v0 y) Y$ K S
所以推論EUT定義安裝在OVC III以上,要測12 ohm,8 M3 F7 h# p; t0 E
OVC I and II只要測試30 ohm.
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' F( k5 b3 C+ u, @- M: F原文如下7.1 Test of power supply ports( x) u; F) l) F; b- u
The test voltage shall be applied through the coupling/decoupling network.) G2 g! U1 E, [+ |* i* J
In general, the impedance of the test generator shall be as follows:
+ O( _* d; b+ q- s- @7 B1 n) `6 [– EUT ports connected to major feeders shall be tested with 12 Ω generator impedance;
% L. f- [* S+ r5 U( x– EUT ports connected to outlets shall be tested with 30 Ω generator impedance.
3 B v6 ?) ^1 }+ nProduct committees may specify tests using either 12 Ω or 30 Ω generator impedance as% P( S Q7 Y. m. j$ V
required. $ B9 V0 H( M) B- q9 J! u5 G' F
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