| http://www.w3.org/ns/prov#value | - In this state, the electric charges are accumulated on the insulating shield or other insulating part of the optical cables that acts as a capacitor while the feed current is being supplied as indicated by an arrow in FIG. 4B. When there occurs a short circuit, on the other hand, the electric charges in the capacitor are suddenly discharged as indicated by arrows in FIG. 4C, and there appears a la
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