600.6 Disconnects.
Each sign and outline lighting system, or feeder circuit or branch circuit supplying a sign or outline lighting system, shall be controlled by an externally operable switch or circuit breaker that will open all ungrounded conductors. Signs and outline lighting systems located within fountains shall have the disconnect located in accordance with 680.12.
Exception No. 1: A disconnecting means shall not be required for an exit directional sign located within a building.
Exception No. 2: A disconnecting means shall not be required for cord-connected signs with an attachment plug.
(A) Location.
(1) Within Sight of the Sign. The disconnecting means shall be within sight of the sign or outline lighting system that it controls. Where the disconnecting means is out of the line of sight from any section that may be energized, the disconnecting means shall be capable of being locked in the open position.
(2) Within Sight of the Controller. The following shall apply for signs or outline lighting systems operated by electronic or electromechanical controllers located external to the sign or outline lighting system:
(1)The disconnecting means shall be permitted to be located within sight of the controller or in the same enclosure with the controller.
(2)The disconnecting means shall disconnect the sign or outline lighting system and the controller from all ungrounded supply conductors.
(3)The disconnecting means shall be designed so that no pole can be operated independently and shall be capable of being locked in the open position.