The location of the sign disconnect is now addressed. Article 600 Electric Signs and Outline Lighting Part I. General 600.6 Disconnects. Each circuit for a sign, outline lighting system, or skeleton tubing must be controlled by an externally-operable switch or circuit breaker that will open all ungrounded conductors. Where the circuit is a multiwire branch circuit, the switch or circuit breaker must open all ungrounded conductors of the circuit simultaneously. (A) Location. (1) At Point ...

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