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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;
# s5 \! M" A) W: q3 I2. 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:8 ?7 b, p1 V9 }+ o: |
a) For PLUGGABLE EQUIPMENT TYPE A, the PROTECTIVE CURRENT RATING is the rating of an
; U: o8 @6 F+ J: `9 ?0 M1 ~overcurrent protective device provided external to the equipment (for example, in the4 m8 [9 X1 [( r3 {
building wiring, in the mains plug or in an equipment rack) to protect the equipment, with a9 K" I4 P; T/ b
minimum of 16 A.
2 Q& }# r3 g7 ?3 iNOTE 1 In most countries, 16 A is considered to be suitable as the PROTECTIVE CURRENT RATING of the circuit.
9 ^) F7 a5 E% _2 T& `/ [" iNOTE 2 In Canada and the United States, the PROTECTIVE CURRENT RATING of the circuit is taken as 20 A.9 C7 g9 q* m/ x3 J* W
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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