7.2.5.1 For thermostats, separate or incorporated in a control box, e.g. with timer, intended to be integrated in a fixed room heating installation, the manufacturer shall specify the maximum operating switching rate. The click rate N shall be derived from this specification. Failing that, a click rate N = 10 shall be used, and Lq shall be determined, see 4.2.2.2.
对于单独的或装在控制箱内的,例如同计时器一起,打算装在固定的房间加热装置内的温控器,制造商应规定最大的开关操作速率。喀呖声率N由此规定值得出,否则,应使喀呖声率N=10,在确定Lq。见4.2.2.2.
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