Peter Blodow wrote: > > Don't speak of wire nuts or other compromises (I can't find gimcracks in > my dictionary), it's all . Electrical power supply is a big mess in the > US and as long as there is no central legislation it will probably stay > that way. You may tell me a lot about different systems in Europe, but > at least they are compatible and if you plug in a device purchased from > anywhere in Europe you can be sure that it will comply with the supply > net at your home location. America has neglected a big chance there to > keep up with the rest of the world and will be handicapped if this pertains. > > Well, maybe your knowledge of what goes on here dates to 1966, or what you were told at that time. The NATIONAL electrical code is followed pretty much everywhere in the US. There are some places that put additional limitations on some things, but mostly in all municipalities the NEC book is the rule. The body that produces the NEC is not a legislative authority, but it is about as close to law as anything we have here.
Yes, indeed, we are "different" and incompatible with Europe and much of the rest of the world. Strangely, we are compatible with much of Japan. Although, they have two different frequencies there, 50 Hz and 60 Hz. That must be really confusing! Certainly, we have one standard wall outlet for 120 V home appliances, and it works across the whole US and Canada, as far as I know. We also have pretty much standard outlets for stoves and clothes dryers. None of this stuff varies by location. One residential change has been to mandate a safety ground on the clothes dryer separate from the neutral. The 240 V clothes dryers from years ago had 3-prong plugs, and ran the 120 V dryer motor between one hot and the safety ground, with no neutral prong. Otherwise, there are new regs for ground fault interrupters in kitchens and bathrooms, and now arc-detection interrupters in certain locations, but in new construction only. But, you imply that we have regional variations in the regulations, and I am quite sure that is not the case here. There may be more strict enforcement in some municipalities, and less strict in the country. But, there is only one "rule book". Jon ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
