一种简便经济的避雷装置梅景福文我县有线电视传输电缆是九二年十月份架设的，当时雷雨季节基本结束，一些同志认为用高频电缆传输，无需避雷装置。九三年四月下旬，一次强烈雷击，线路遭受损坏，三只干线放大器、五只支线放大器全部击毁，不但经济上损失四千多元而且影响... A simple and economical lightning protection device Meijing Fu Wen County cable television transmission cable was erected in October 1992, when the thunderstorm season ended, some comrades think that the use of high-frequency cable transmission, no lightning protection device. In late April 1993, a severe lightning strike and damaged lines, three trunk amplifiers and five feeder amplifiers were all destroyed, not only economically losing more than 4,000 yuan but also affecting ...