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yuqijun 兄弟,
' V' o0 L0 m; t+ p% s3 xc) The existence of a HAZARDOUS ENERGY LEVEL is determined as follows:6 ~1 M: ]$ C3 e1 ~5 [7 X
1) with the equipment operating under normal operating conditions, a variable resistive0 a% y: I+ R; H* [
load is connected to the parts under consideration and adjusted to obtain a level of
& Q6 K G: \( |: S240 VA. Further adjustment is made, if necessary, to maintain 240 VA for a period of
6 M" p. c# t; E; D' |; y# ^; ?60 s. If the voltage is 2 V or more, the output power is at a HAZARDOUS ENERGY LEVEL,5 y9 ?5 M7 m p( r
unless an overcurrent protective device opens during the above test, or for any other
* z. v- T# {* X( Rreason the power cannot be maintained at 240 VA for 60 s;
7 }) S) U1 l) z: T5 [! h* r从标准这样字眼:the parts under consideration and adjusted to obtain a level of! h* J4 E B( W9 F
240 VA来看,看你考量的是哪里,严格来说考量的应该是整个次级,而不只是输出。只不过是人们做熟了觉得没什么问题,就只做输出了而已。 |
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