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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;
: v! b+ j- U: J3 t: W3 Z5 M2. 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:
5 Q( ~1 ]3 o4 C6 Y! C: y$ C( v" o1 @a) For PLUGGABLE EQUIPMENT TYPE A, the PROTECTIVE CURRENT RATING is the rating of an
) ?8 w# [; B% t Z$ x7 Jovercurrent protective device provided external to the equipment (for example, in the6 m( ?6 Q$ L! D: F: Y9 q
building wiring, in the mains plug or in an equipment rack) to protect the equipment, with a
" B5 e! J5 d" F& a' y$ uminimum of 16 A." p( g8 [4 i# H/ L/ [1 e
NOTE 1 In most countries, 16 A is considered to be suitable as the PROTECTIVE CURRENT RATING of the circuit.- ?! C: p' d D9 V9 M6 U8 V5 L: \
NOTE 2 In Canada and the United States, the PROTECTIVE CURRENT RATING of the circuit is taken as 20 A.
( b ]0 V4 n) L q1 h/ INOTE 3 In the United Kingdom, the current rating of the circuit shall be taken as 13 A, not 16 A |
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