Daktronics GPR-12EV-RGB - Manual (Page 12)

6 Power Installation
8. Route the signal quick-connect cable from the enclosure to the display through
conduit or through the display pole if power is not also routed in the display pole.
Daktronics strongly recommends the quick-connect cables be secured to protect them from
weather or vandalism.
Displays are equipped with circuit breakers that carry a UL489 or UL1077 (IEC 60947, VDE
660) rating. These devices only protect the components within the display. Suitable devices
must be used for the equipment and feeders supplying power to the display.
3.3 Power Requirements
Do not connect the displays to any voltage other than that listed on the Daktronics product
label.
Conductors of circuits delivering power to a Daktronics display must be sized according to
local and national electrical codes so that the power distribution system can deliver full-load
power to the display while maintaining a voltage within 5 percent of the utility nominal
voltage.
Displays use single-phase power. Proper power installation is imperative for proper display
operation. Power Specifications are found in Appendix A. The following sub-sections
provide details of power installation.
Main Disconnect
Daktronics requires using a power disconnect switch with the display. Use a disconnect
switch so that all ungrounded conductors can be disconnected near the point of power
connection.
The disconnecting means must be either located in a direct line of sight from the display or
capable of being locked in the open position. This ensures that power will not be reconnected
while service personnel work on the display.
3.4 Grounding
Displays must be grounded according to the provisions outlined in all applicable local and
national electrical codes.