Basic DC Theory DC CIRCUIT FAULTSFigure 57 Shorted Parallel CircuitParallel circuits are more likely than series circuits to develop damaging short circuits. This isbecause each load is connected directly across the power source. If any of the load becomesshorted, the resistance between the power source terminals is practically zero. If a series loadbecomes shorted, the resistance of the other loads keeps the circuit resistance from dropping tozero.SummaryThe important information in this chapter is summarized below.DC Circuit Faults SummaryAn open series DC circuit will result in no power being consumed by any ofthe loads.The effect of an open in a parallel circuit is dependent upon the location ofthe open.A shorted DC circuit will result in a sudden and very large increase in circuitcurrent.Rev. 0 Page 69 ES-02
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