| http://www.w3.org/ns/prov#value | - As shown in FIG. 2, the left switch or circuit breaker 22 (which is associated with the normal power supply) is CLOSED while the fight switch or circuit breaker 24 (associated with the auxiliary power supply) is OPEN. As will be described, there never is a time when both switch or circuit breakers 22 and 24 are simultaneously closed.
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