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[quote]QUOTE: Originally posted by RalphJenkins This is another question on this topic -- what is a "power district?? Is this like a DC "block" system?? Do you use rail insulators in power districts?? Thanks for your help!! [/quote] In one sense a power district it is like a DC Block, but it is not used or wired like a DC Block. The purpose of a power district is to isolate a section of track (both rails) from other parts of the railroad. If there is ever a short in this power district (such as from a derailment or the well documented issue with power routed turnouts), Only that power district will be shut down by the auto circuit breaker. The rest of the railroad in all other power districts will remain powered and running. Power districts can be created by wiring each (both rails) to different boosters, but that can get expensive. They can also be created by using a device such as the Digitrax PM42 (Power manager) or a Powershield from Tony's Train Xchange www.tonystrains.com (I'm sure there are other examples). This device is wired between a single booster and each power district. It is more sensitive to shorts than the booster, so it will trip (circuit breaker) before the booster trips, thus keeping the booster up and all other power districts functional. And yes, a power district can also by used and an aid in finding shorts caused by wiring errors. You still have to keep track of "polarity" with DCC when wiring. Dale B.
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