Does the old UK red-black-green colour code still exist anywhere I wonder? India, Australia and South Africa the old Empire maybe?
There have been several requests here recently for guidance on the European 230V standardisation. For non-Brits it may amuse you to know I can recall the Electricity Board visiting everyone's houses in the mid 1950s in England to rerate appliances for 240V from the old 220-230V. At that time they actually did up the nominal voltage. I concur with the statement made here that the supply companies in UK have not changed a thing in response to the European harmonization. What has happened is the tolerances have been changed and some of European zones at the low limit are changing to a higher voltage very slowly. Importers of voltage sensitive equipment into Europe should beware. In the UK your equipment will be connected to 240V and will be expected to work to specification. The upper limit should be 230 + 10% = 253V but don't hold your breath. Do UK labs will test with 230V + 10% +10%? or just 230 +10% I wonder? In rural Portugal and Greece you may find less than 220V for a long time to come. And of course there is the 50Hz issue which is not trivial for linear power supplies. The harmonization rules allow the UK electricity suppliers to gradually changeover from 240V to 230V. The process has to be done on a regional basis as obsolete equipment is replaced. And they have the choice to never change of course. Best Regards Ted Rook, Console Engineering, ext 4659 Please note our new location and phone numbers: Crest Audio Inc, 16-00 Pollitt Drive Fair Lawn, NJ 07410 USA 201 475 4600 telephone receptionist, 8.30 - 5 pm EST. 201 475 4659 direct line w/voice mail, 24 hrs. 201 475 4677 fax, 24 hrs. This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
