7.3.4.13 Flexible electrical heating appliances (warming pads, electric blankets,bedwarmers, heating mattresses) shall be spread between two flexible covers (e.g. nonconducting mats), extending beyond the heating surface by at least 0,1 m. The thickness and
the heat conductivity shall be selected in such a way that the click rate N can be determined for a duty-cycle of (50 ± 10) % of the control device
柔性电热器具(保温垫、电热毯、热床垫)应铺在两层软覆盖物(如不传热织物)之间,覆盖面至少超出加热面0.1m。其厚度和导热性的选择应使得喀呖声率N能在控制装置(50 ± 10) %的工作周期时确定。 |