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楼主 |
发表于 2009-9-21 16:23:55
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插座的更换
我们先来读一段禾宝(Hubbell)的介绍:
For Isolated Ground Receptacle
The grounding contact on this device has been purposely insulated from the mounting means to reduce electromagnetic interference. The mounting strap is provided with an approved grounding clip for use with grounded metallic boxes. For proper use, the mounting strap must be grounded.
NOTE: Care is important in specifying such a system with receptacle insulated grounds since the grounding impedance ia controlled only by the grounding wires and does not benefit functionally from any Parallel ground paths.
[ 本帖最后由 Enlighten 于 2009-9-21 16:36 编辑 ] |
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