Re: Battery Boxes...What One Company Designed

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Sun, 18 Sep 2005 15:04:00 GMT, Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>
wrote in message  <jlpqi1pug6c0m8uiqalsq7hjeau43aqu44@xxxxxxx>:


In ASCII, continuing from previous diagram:


28vdc -+->Circuit Breaker--->Dimmer module--->12vdc track UL w/remote xfmr
       |    (Art. 720 + 240)     (Art 725.21 Class 1)
       |
       +->Circuit Breaker -------------> devices
       |             (Art. 720 + 240)
       |
       +---->  DC-DC converter ----+---> device
              (Art.725 Class 2)    +---> device ground

14vdc -+---->  DC-DC converter ----+---> device
       |       (Art.725 Class 2)   +---> device ground
       |
       +----------------------------> device(s)
              (Art 725.21 Class 1)

0 ----------------------------------> ground
           (Art. 720 and 725 class 1)

Not shown are low-voltage outdoor lighting or telecomm.

Marc
Marc_F_Hult
www.ECOntrol.org