Hi Andy, Is there any particular reasons to have 110 Vac for railway signalling system in a 230/240 Vac country?
Scott On 4/7/12 3:10 PM, "Andrew McCallum" <andrew.mccal...@deltarail.com> wrote: > The UK railway signalling system all runs at 110 V AC 50 HZ > Andy > > -----Original Message----- > From: John Woodgate [mailto:j...@jmwa.demon.co.uk] > Sent: 03 July 2012 21:17 > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: Interview Questions > > In message > <CAKEabA3B=iqyzpyjzmb5tjdewp+eowdq40fu9dh88oah6a1...@mail.gmail.com>, > dated Tue, 3 Jul 2012, IBM Ken <ibm...@gmail.com> writes: > >> PS: Who operates at 110VAC 50Hz? > > Portable equipment used on construction sites; it's actually 55-0-55, with the > centre grounded. > -- > OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Instead > of saying that the government is doing too little, too late or too much, too > early, say they've got is exactly right, thus throwing them into total > confusion. > John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://listserv.ieee.org/request/user-guide.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> > > > Confidentiality: This e-mail and its attachments are intended for the > addressees only (or people authorised to receive them on their behalf) and may > be confidential or privileged. If they have come to you in error you must take > no action based on them, nor must you copy or show them to anyone; please > delete them from your system and reply to this e mail highlighting the error. > > Security: Please note that this e-mail has been created in the knowledge that > internet e-mail is not 100% secure. Anyone who communicates with us by e-mail > is taken to accept this. > > Viruses: We have taken steps to ensure that this e-mail and attachments are > virus free, but we advise that in keeping with good computing practice you > should ensure that they are actually virus free. > > DeltaRail Group Limited registered office Hudson House, 2 Hudson Way, Pride > Park, Derby, DE24 8HS. Registered in England and Wales, number 5839985. Please > refer to www.deltarail.com > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://listserv.ieee.org/request/user-guide.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
