在家庭布线和用电中,有几个增大线损的问题,提醒大家注意。1 线头接触不良引起的损耗 在维修线路中,经常看到用户室内与室外的线路接头是用黑胶布和防水胶布包扎的,长久使用,风吹日晒雨淋,室内潮湿、烟薰,使胶布失去粘性,接头处密封不严,开始氧化,增大了接头的接触电阻。根据功率公式P=I~2·R可知,随着接触 There are several problems with increasing line loss in home wiring and power supply, reminding everyone to pay attention. 1 Loss caused by poor wire contact In the maintenance line, users often see the indoor and outdoor line connector is wrapped with black tape and waterproof tape, long-term use, wind and sun, rain, indoor humidity, smoke, so that tape Loss of stickiness, tight seal at the joints, oxidation begins, and the contact resistance of the joint increases. According to the power formula P=I~2·R, with the contact