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标准UL 60950-1 第2.10.2.1章节 g)条有对工作电压的确定做说明:
( A( m' k5 d: p, I7 fThe WORKING VOLTAGE between any point in the PRIMARY CIRCUIT and earth, and between
5 ^! X- L0 t, ~" Sany point in the PRIMARY CIRCUIT and a SECONDARY CIRCUIT, shall be assumed to be the, q- j* p* U8 u5 n8 t; i) L
greater of the following:3 @7 ^. B' f3 u$ i% I4 D3 o
– the RATED VOLTAGE or the upper voltage of the RATED VOLTAGE RANGE; and
2 |- E; O6 V$ l– the measured voltage.& H2 G" u8 q; Q
是额定电压或电压范围的上限值和实际测试的工作电压做比较,较大者为此测试点的工作电压。所以一次侧到接地金属至少为额定电压或额定电压范围的上限值。然后根据这个情况取值再去查表。 |
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