This paper briefly introduces the requirements about the insulation system of electronic product, and describes the importance of functional check and Dielectric strength in safety test.

本文简述电子电气产品对绝缘系统的要求，以及在产品的安全测试中抗电强度试验和对测试仪器作运行检查的重要性。

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The process begins with a functional check, where techs verify that the camera is working correctly before it's modified in any way.

ENGADGET: After hours at NAB: A closer look at Red's Dragon upgrade operation (video)

It takes 18 hours to break down our current MH-53s, an additional 12 hours to build them up, and then a functional check flight before you know that it's safe to fly.

CENTERFORSECURITYPOLICY: V-22: A discussion on the way ahead

All you really want is to get out of the store and start using that shiny new phone to play games, check e-mails, share photos and take advantage of the plethora of fun and functional apps on the market.

FORBES: The Mobile Data Economy: How Much Data Do You Need To Buy?