Hi Ken, Thats what I would have believe.... BUT, the drawing shows Power coming into the EUT, and loads connected by interconnect wiring on the outside. If this contactor was switching to a heater for example, that is a load is it not? It's also power..... This is my dilemma.
Cheers, Derek. Ken Javor wrote: > Derek, > > Aircraft primary power controlled by the contacts is simply that, power. The > control signal to the coil is interconnecting leads, even if it is > originally 28 Vdc primary power. > > Ken Javor > > Phone: (256) 650-5261 > > > >> From: Derek Walton <[email protected]> >> Date: Wed, 19 Mar 2008 09:50:28 -0500 >> To: IEEE EMC Discussion Group <[email protected]> >> Subject: DO-160 >> >> Hi all, >> >> I'm testing a relay used for switching power on an Aircraft. >> >> I'm trying to get consensus on the classification of power leads Vs >> interconnect leads. >> >> This device is switching power, so are these leads power leads or >> interconnect? Power for the relay circuits comes in separately. >> >> One can argue the Switched power source wires are Power leads since they >> connect to the AC power bus. The output switched wires could be >> considered interconnect since they supply loads. However, since they are >> also a power source for other circuits they could be considered power too. >> >> Thoughts? >> >> Thanks, >> >> Derek Walton >> L F Research >> >> - >> ---------------------------------------------------------------- >> This message is from the IEEE Product Safety Engineering Society >> emc-pstc discussion list. Website: http://www.ieee-pses.org/ >> >> To post a message to the list, send your e-mail to [email protected] >> >> 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 [email protected] >> Mike Cantwell [email protected] >> >> For policy questions, send mail to: >> >> Jim Bacher: [email protected] >> David Heald: [email protected] >> >> All emc-pstc postings are archived and searchable on the web at: >> >> http://www.ieeecommunities.org/emc-pstc >> > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to [email protected] > > 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 [email protected] > Mike Cantwell [email protected] > > For policy questions, send mail to: > > Jim Bacher: [email protected] > David Heald: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc > > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
