插头上有两个小洞洞,您知道它有什么用处吗?别小看它哟,它的作用其实可不小啊!
插头插入插座,为何能通电呢?原因是因为插头插入插座时,有两个夹片将插头上的金属片扣合。不过随着使用年限增加,金属片会逐渐松动,因此有了两个小洞洞,就能与插座内部的弹片“卡好卡满”,达到固定效果。
小孩玩插座出事时有所闻,一些父母会特地买锁头将插头上的两个小洞洞锁住。有些插座则是带锁的,插头插入后按下开关,就会往孔里插入一根金属棍,起到“锁死”作用。
当然,还有一个作用是出厂封装时,厂商会在孔洞穿过一条塑料绳悬挂注意事项,以确保使用者拆封前先看一看使用说明。
找工作, 就找这里!
› 立即申请
- IT Business Sales Support (internship)
- Sales & Marketing
- Kuala Lumpur
-
MYR 850.00 /Month
› 立即申请
- Business & Marketing Executive (Internship)
- Sales & Marketing
- Kuala Lumpur
-
MYR 850.00 /Month
› 立即申请
- Business Development Representative(Intern)
- Sales & Marketing
- Kuala Lumpur
-
MYR 850.00 /Month
› 立即申请
- Business IT Sales (Intern)
- Sales & Marketing
- Kuala Lumpur
-
MYR 850.00 /Month
› 立即申请
- Business IT Sales
- Sales & Marketing
- Kuala Lumpur
-
MYR 5K /Month
› 立即申请
- IT Business Sales Support
- Sales & Marketing
- Kuala Lumpur
-
MYR 5K /Month
› 立即申请
- Business Development Representative
- Sales & Marketing
- Kuala Lumpur
-
MYR 5K /Month
› 立即申请
- Business & Marketing Executive
- Sales & Marketing
- Kuala Lumpur
-
MYR 5K /Month
› 立即申请
- Business Development
- Sales & Marketing
- Kuala Lumpur
-
MYR 5K /Month
› 立即申请
- 财富规划师 (Wealth Planner)
- Insurance
- Petaling Jaya
-
MYR 9K /Month
› 立即申请
- 营养教练
- Insurance
- Kuala Lumpur
-
MYR 10K /Month
› 立即申请
- PHP Software Developer
- Information Technology
- Wilayah Persekutuan
-
MYR 6K /Month
› 立即申请
- DevOps Software Engineer
- Information Technology
- Kuala Lumpur
-
MYR 6.5K /Month
› 立即申请
- Java Software Engineer
- Information Technology
- Kuala Lumpur
-
MYR 10K /Month
› 立即申请
- PHP Software Engineer
- Engineering
- Kuala Lumpur
-
MYR 4K /Month
› 立即申请
- PHP Web Developer
- Engineering
- Kuala Lumpur
-
MYR 4K /Month
› 立即申请
- Graphic Design + Marketing (Internship)
- Advertising & Marketing
- Kuala Lumpur
-
MYR 800.00 /Month
› 立即申请
- PHP Web Developer (Internship)
- Engineering
- Kuala Lumpur
-
MYR 800.00 /Month