3.7.1
thermostat
temperature-sensing device, the operating temperature of which may be either fixed or
adjustable and which during normal operation keeps the temperature of the controlled part
between certain limits by automatically opening and closing a circuit
動作溫度可固定或可調的溫度敏感裝置,在正常工作期間,其通過自動接通或斷開電路來保持被控部件的溫度在某些限值之間。
3.7.2
temperature limiter
temperature-sensing device, the operating temperature of which may be either fixed or
adjustable and which during normal operation operates by opening or closing a circuit when
the temperature of the controlled part reaches a predetermined value
NOTE It does not make the reverse operation during the normal duty cycle of the appliance. It may or may not require manual resetting.
動作溫度可固定或可調的溫度敏感裝置,在正常工作期間,當被控部件的溫度達到預先設定值時, 其以斷開或接通電路的方式來工作。
注:在器具的正常工作迴圈期間,它不得造成反向工作,它可要求也可不要求其具有手動復位的功能。
上邊兩個是標准原文,請特別注意3.7.2注,它表明“限溫器”不得進行反向工作(即斷開後不得再自動接通),這是關鍵,而“溫控器”一定會反向工作,否則不可能“保持被控部件的溫度在某些限值之間”。
與上述“限溫器”有點類似的是切斷電路的“熱斷路器”(3.7.3),但限溫器是“during normal operation ”,即在11章中動作。而“熱斷路器”是“during abnormal operation”,即在19章中動作。因此有時同一個元件,測試時如果在11章動作就叫“限溫器”,如果在19章中動作就叫“熱斷路器”。要求也不一樣,視具體情況而定。