黑光灯是一种诱杀害虫的工具,我们这里棉田使用较多。有的地方,由于电压不足,安装在棉田的黑光灯往往难以启燃。出现这种情况时,可以通过改用粗些的电线或改装线路来解决。由于条件限制,我们是采用后一种办法来解决的(如附图),即在原线路(实线所示)上并联一个外加线路(虚线所示),使黑光灯在低电压下启燃。外加线路是用一只4.75微法电容器(耐压300伏以上)和一只按纽(拉线开关)串连而成。当电压足时,使用原线路。当电压不足时,使用外加线路,其具体操作方法是:在接通电源后, Black light is a kind of trapping and killing pests tool, we use more cotton fields here. In some places, black light installed in cotton fields is often hard to ignite due to insufficient voltage. When this happens, you can do so by switching to a thicker wire or a modified circuit. Due to the limited conditions, we use the latter solution (as shown in the figure). That is, an extra line (shown in broken line) is connected in parallel to the original line (solid line), so that the black light lamp ignites at low voltage. The additional circuit is a 4.75 microfarad capacitor (withstand voltage of 300 volts or more) and a button (cable switch) in series. When the voltage enough, the use of the original line. When the voltage is low, the use of additional lines, the specific method of operation is: After the power is turned on,