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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;5 |, n6 \# C( B [- q
2. 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:
4 \4 O$ i. ?- R' K( o3 na) For PLUGGABLE EQUIPMENT TYPE A, the PROTECTIVE CURRENT RATING is the rating of an
; g" f8 p) e. ]0 \overcurrent protective device provided external to the equipment (for example, in the
2 m6 I, I% j1 O; s% Vbuilding wiring, in the mains plug or in an equipment rack) to protect the equipment, with a
U3 q3 r# j9 R$ Nminimum of 16 A.
, Q) a l" q/ F- ZNOTE 1 In most countries, 16 A is considered to be suitable as the PROTECTIVE CURRENT RATING of the circuit.9 M/ x* v! w4 h4 E& h$ H& z
NOTE 2 In Canada and the United States, the PROTECTIVE CURRENT RATING of the circuit is taken as 20 A.
$ f3 O& I6 g; K ]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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