请教 电源成品上的2个符号代表什么意思
请教,如题这两个符号代表什么意思?
如果能有出处就更好了。
谢谢啦~ 1。耐短路安全隔离变压器
2。115度的热熔断体 引用第1楼小鸭的天空于2009-06-01 16:20发表的:
1。耐短安全隔离变压器
2。115度的热熔断体
GB19212或IEC 61558 引用第1楼小鸭的天空于2009-06-01 16:20发表的 :
1。耐短安全隔离变压器
2。115度的热熔断体
谢谢小鸭的天空
接着请教 什么是耐短的安全隔离变压器呢? GB19212.1, 第3.1.9条中有说明. 准确来说,第一个标志应该是固有或非固有耐短路隔离变压器。(Inherently or non-inherently short-circuit-proof safety isolating transformer)
具体定义
inherently short-circuit proof transformer
short-circuit proof transformer not equipped with any device for protection against overload or short circuit. Thetransformer by construction does not exceed the specified temperature limits, and continues to operate and meet all the requirements of this standard after the removal of the overload or short circuit
non-inherently short-circuit proof transformer
short-circuit proof transformer equipped with a protective device or with an intentional weak part which opens theinput circuit or the output circuit, or reduces the current in the input circuit or theoutput circuit when thetransformer is overloaded or short-circuited, and continues to meet all the requirements of this standard after removal of the overload or short circuit
详见IEC61558-1和IEC61558-2-**中的标志和解释
也可看GB19212.1-2003中的条款。 看IEC60417
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