> ---------- > From: Kendall Wilcox > Reply To: Kendall Wilcox > Sent: Wednesday, October 21, 1998 9:26 PM > To: [email protected] > Cc: [email protected] > Subject: Re: Plugs for China > > Patrick, > > You are correct. The small "bumps" in the contact blades of the wall > outlet are designed to mate with the holes of the > attachment plug blades. My understanding is that holes in the blades and > bumps on the wall outlet contacts are > optional. However, if the holes and bumps are used, the dimensions must > meet the criteria specified in the standard. > In the US, UL 817 gives dimensional requirements for the bumps and holes. > > Best Regards, > Kendall Wilcox > Fujitsu Computer Products of America > > > > > [email protected] (Patrick Lawler) on 10/21/98 11:00:41 AM > > Please respond to [email protected] (Patrick Lawler) > > To: [email protected] > cc: (bcc: Kendall Wilcox/Orch/SJ/FCPA/Fujitsu) > Subject: Re: Plugs for China > > > > > I just looked at a hospital-grade cord, and it had solid, nickel-plated > blades > _with_ a hole. > > Is the hole related to plug retention in the outlet? I thought I > remembered > seeing small bumps on the mating blades inside the wall outlet. > > > On Wed, 21 Oct 1998 08:15:52 -0800, [email protected] wrote: > >------------------------ > > From: [email protected] > > Subject: Re: Plugs for China > > Date: Tue, 20 Oct 1998 16:06:42 -0800 > > To: EMC-PSTC <[email protected]>, Millsaps Cindy-G14342 > <[email protected]> > > > > > >> > >> > >> ------------------------ > >> From: Millsaps Cindy-G14342 <[email protected]> > >> Subject: Plugs for China > >> Date: Tue, 20 Oct 1998 16:10:33 -0400 > >> To: "'[email protected]'" <[email protected]> > >> > >> > >> > It seems that China now requires the plug blades to have no holes in > them. Referring to the small round opening at > the upper area of a US plug. > >> > >> > Thanks, > >> > >> > Cindy Millsaps > >> > Product Safety Engineer > >> > Motorola Energy Systems Group > >> > (770) 338-3288 > >> > FAX: (770) 338-3345 > >> > >> Sorry, Cindy, I'm of no help on your question. But, can anyone tell me > just what those little circular holes in the > High and Neutral plug blades are supposed to do? > >> > >And now, another little observation. I looked at some equipment with > Hospital Grade cable plugs. These plugs had solid > blades; no holes at all. And the blades were much more rigid, with > slightly larger thickness and width than a standard > plug (subjective, since I didn't have a caliper with me). I would think > that this would create higher contact pressure > with the female socket elements when mated. > > > >Also, the blades had what appeared to be a nickel plate finish. > > > >Regards, > > > >Ed > > > >-------------------------- > >Ed Price > >[email protected] > >Electromagnetic Compatibility Lab > >Cubic Defense Systems > >San Diego, CA. USA > >619-505-2780 > >Date: 10/21/1998 > >Time: 08:15:53 > > > > > > > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). >
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