Re: DCC Wiring - Can it cause a fire?
Thanks for that tid-bit!!!!
From: David Heine
Sent: Monday, January 20, 2014 2:28 PM
Subject: RE: [WiringForDCC] DCC Wiring - Can it cause a fire?
In general, a circuit breaker doesn’t know the difference between 5 amps of load, 5 amps caused by a short with the current limited by inadequate wiring, or 5 amps caused by a higher impedance short that limits the current to 5 amps by itself. In this case, I would suspect a short with inadequate wiring or some sort of higher impedance short.
I knew better, but on a previous layout, I let my track laying get ahead of my wiring. I had about 25’ of track (50’ of Code 70 rail) beyond the last set of track feeders. I was test running an engine, it derailed and caused a short. Because of the resistance of all the rail, the current level was held below the value for the protection to trip the power (5A). I had to shut off the power manually. The short was on long enough to melt the Kadee coupler box on the tender of a brass locomotive.