Daktronics AF-3020-7.6-R,A - Manual (Page 18)

Electrical Installation 3-4
Figure 12: Installation with Ground and Neutral Conductor Provided
Installation with Only a Neutral Conductor Provided
Installations where no grounding conductor is provided must comply with article 250-32 of
the National Electrical Code. If the installation in question meets all of the requirements of
article 250-32, the following guidelines must be observed:
· Connect the grounding electrode cable at the local disconnect, never at the display panel
board.
· A disconnect that opens all of the ungrounded phase conductors should be used.
· The neutral and the ground conductors should be bonded in the display panel board.
Refer to Figure 13 for installation details.
Figure 13: Installation with only Neutral Conductor provided