John Gibson wrote: > ==================================================================== > > Adding brushes to the frame side pick-up still leaves the frame hot > > unless you take other measures to insulate the gear towers from the > > frame. Without this isolation the motor is no more electrically > > isolated from the frame than before adding the brushes. > > > > Ben Trousdale > ==================================================================== > > Yes the frame remains hot; however, you do not need to insulate the > gear towers (though you can by adding fiber washers). Once you have > disconnected the wire lead from the frame to the motor, the motor is > electrically isolated because it is mounted to the frame by a bed of > non-conductive glue. This point is critical for a DCC installation - > all power to the motor must come through/from the decoder. > > Clear as mud, right? ;-) >
The mud is settling. : ) As long as the motor terminals are no longer connected to the frame, you're okay. As fas I know, can motors are isolated even if it's screwed to the frame. The last motor you really had to worry about was the Pittman because it used its frame for a return. But that was changeable too, I think. And installer beware, lighting is the same. Don't forget to rewire any lights that use the frame for common. Yes, I speak from experience - lost the lamp o/p from a decoder once. At least I think so - a lot of smoke escaped from the transistor. :) Ken The poll results are in....... To REPLY to the list, use REPLY ALL, to reply to the sender, use REPLY. I do NOT know if this works on all e-mail software, but it works on some of the most common ones. For those of you on DIGEST mode, all REPLY messages go to the list. Change your membership, change your message settings, use our CALENDAR, view shared files or photos, view the list archives, GO TO http://groups.yahoo.com/group/S-Scale/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
