Tiago Marques wrote: > On 5/31/09, Reinder de Haan <[email protected]> wrote: >> >> Sascha Silbe wrote: >>> On Sun, May 31, 2009 at 03:16:53PM +1000, James Cameron wrote: >>> >>>> 1. Earthing. The current design has no earth at the AC end, and is >>>> isolated in relation to the DC end. An earthed AC plug in some >>>> countries produces a more reliable and positive insertion and anchoring. >>> All "travel adapters" (power outlet adapters) I've come across so far >>> had no earthing so would be impossible to use (unaltered). Of course >>> this wouldn't be much of a change as the current wall warts also don't >>> fit any adapter I've seen at shops. At SugarCamp in Paris, quite a few >>> people (including myself) had "custom" ones, i.e. with mechanic >>> alterations. >>> Personally, I feel comfortable making minor mechanic changes to an >>> adapter, but I won't usually dare using a non-earthing adapter with a >>> device having an earthed plug (unless I know for sure this is safe). >>> >>> Actually, if you are able to use a standard plug (e.g. IEC-60320-C5/C6) >>> at the power supply end, above won't apply at all as it's usually easy >>> to get a matching cable, no travel adapter needed. :) >> +1 for inline adaptor its MUCH easier to exchange only the mains cable: >> 1) when its demaged >> 2) when shiping to a different part of the world >> you would need only one powersupply brick for (almost?) all or the world. >> i have seen some companies ship a couple of different cables so the >> device is usable almost everywhere and doesn't need to be custom >> packed/country. >> >> i would go which IEC-60320 C8/C9 which is used for half of the laptops >> today. > > Completely not the picture around this part of Europe. Most of them > come with C13 and some are being sold with C7, which is pretty much a
oops i meant C7/C8 NOT C9!! > standard for other types electronics. C13 would be my favorite, if the > size of the plug is not an issue, since it is also the standard for > computer power supplies. As mentioned above, C5 would also be sweet. both are an earthed connector and so 'require' an earthed outlet. combined with that almost all power supplies i have seen with a C5/C6 or C13/C14 connect the earth input to the ground/0V dc output... if you insert such power supply into an not earthed outlet (which are quite common) your whole laptop will be at ~1/2*Uin Vac due to the filter capacitors in the mains filter. which gives a nasty shock if you touch both a non insulated part of your laptop and a earthed object.. > As for safety, adding something like the cable plug of the original > Xbox pads would work perfectly and it's not as expensive as Apple's > magnetic plug. Cost of this is something I have no clue about. > > Best regards, > > Tiago Marques > >> i feel a earthed design only increases the risks, even more so when you >> cant depend on the quality of the mains supply. >> the only advantage to the earthed design that im aware of is that the >> power supply easier(cheaper?) meets EMC/FCC regulations. >> >>> I hope future XO versions will still have the same broad power input >>> specs as the XO-1. It's been very useful already (e.g. cable-only "car >>> adapter", no voltage conversion or even voltage limit necessary). >>> >>> CU Sascha >>> >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> Devel mailing list >>> [email protected] >>> http://lists.laptop.org/listinfo/devel >> _______________________________________________ >> Devel mailing list >> [email protected] >> http://lists.laptop.org/listinfo/devel >> > _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
