标题: 测量类设备的温升 [打印本页] 作者: jcyxb 时间: 2015-6-23 17:50 标题: 测量类设备的温升 因为是测量类设备,如果被测量的功率较大,那么设备的温度会因为功率增加而增高,甚至是启动设备的过温度保护? + m: [- E# u1 n) t% S' s7 v+ @那么测试设备温升应该怎么办?这个时候温度会震荡的?, }" L8 y/ y4 r4 N
- O' O/ T3 Z2 p; w/ ?0 q/ s 作者: leaphile 时间: 2015-6-23 23:15
楼主按标准测就是了。如果设备在正常温升下,过温度保护启动,就直接NG; c7 P% g2 i5 f/ s6 _1 K
4 W, r) M. ~) L1 q! j* f! S以下为 EN61010 clause 14.3 作参考 & Z! l) \- Q+ x/ {2 j3 b: r. m/ [8 ^% D. B
14.3 Overtemperature protection devices# N/ s: A5 c6 C$ T
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Overtemperature protection devices are devices operating in SINGLE FAULT CONDITION. They shall meet all of the following requirements:' \. ~# O4 \, W5 N5 t5 N
a) be constructed so that reliable function is ensured;" p, C6 j! f% Q( \9 D
b) be RATED to interrupt the maximum voltage and current of the circuit in which they are employed; 6 p- L/ _/ u9 _$ @ ~c) not operate in NORMAL USE.作者: jcyxb 时间: 2015-7-7 17:34