举报
dygx522 发表于 2013-10-15 13:05 应该电压时零吧,如果有电压,就说明正极或负极接地了
本版积分规则 发表回复 回帖后跳转到最后一页
手机版|Archiver|阳光工匠光伏论坛 ( 苏ICP备08005685号 )
GMT+8, 2024-5-22 01:56 , Processed in 1.062500 second(s), 7 queries , File On.
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.