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1. 工作电压的Vp值应用最大值或最小值两的最大数值(不考虑电压的正负极性), 例如测量电压的最大值为456V, 最小值为-505V, 则Vp值就是505V;
: v3 @0 N2 [+ p9 I: S5 X4 r' P2. 首先可以肯定的告诉你, 你的这种理解不正确. 其标准要求的是PROTECTIVE CURRENT RATING值的2倍, 需这个值并不是你所理解的2.5A, 而是指是的产品所用的保护电路的RATING值, 在标准的2.6.3.3条款中有说明, 如下:' `" m/ E' G. M6 t7 N
a) For PLUGGABLE EQUIPMENT TYPE A, the PROTECTIVE CURRENT RATING is the rating of an
. m9 f. Z+ z( G+ o9 O5 Vovercurrent protective device provided external to the equipment (for example, in the+ P- t* C. C2 ~. c6 w
building wiring, in the mains plug or in an equipment rack) to protect the equipment, with a( M1 V' l. \! E- L. l5 H: D, }
minimum of 16 A.
) P$ k1 E2 v: K' PNOTE 1 In most countries, 16 A is considered to be suitable as the PROTECTIVE CURRENT RATING of the circuit.* F% d5 E1 m; ]/ p5 g* y
NOTE 2 In Canada and the United States, the PROTECTIVE CURRENT RATING of the circuit is taken as 20 A.
2 C( [" S* t+ t) _/ y, C# \NOTE 3 In the United Kingdom, the current rating of the circuit shall be taken as 13 A, not 16 A |
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