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根据标准2.1.1.5 Energy hazards中
+ y' V( g7 Z' _0 Y4 ]; Bc) The existence of a HAZARDOUS ENERGY LEVEL is determined as follows:7 R: ^1 a6 z! j+ U
1) with the equipment operating under normal operating conditions, a variable resistive: S9 d/ V7 C# M' ~4 \6 G
load is connected to the parts under consideration and adjusted to obtain a level of. y* U5 M- W0 X
240 VA. Further adjustment is made, if necessary, to maintain 240 VA for a period of
$ Q# N) _. Z+ u* K+ r60 s. If the voltage is 2 V or more, the output power is at a HAZARDOUS ENERGY LEVEL,
0 T# `5 I% I, }unless an overcurrent protective device opens during the above test, or for any other2 f& w i5 U& _2 Q5 j& w5 S8 }
reason the power cannot be maintained at 240 VA for 60 s;
0 Q/ q; }! C( V, G* z
7 \* m( t, x. u& f为什么说电压是2V或更高，输出功率是处于危险能量等级？这个电压是指什么电压？为什么是2V？这段好像看不太懂，那位大侠指导下吧 |
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发表于 2011-3-1 13:15
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发表于 2011-3-1 13:28
我找了好久,也找不到支持這個詞"2V"定義的依據.