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TRC-57 - Suppression of Radio Interference from Elevators

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Radio interference may be caused by direct radiation of noise from the elevator and associated equipment, or by the conduction of noise on the power supply conductors, or other conductors within the noise field, such as telephone and signal wires. Radio noise may originate at any point where the circuit is interrupted, such as control relays, push buttons, commutator motors and generators, etc.

Created: 2002-07-18
Updated: 2004-12-02
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