A grounding electrode conductor connects to the ground bar within the room with sizes determined per the one line diagram or National Electrical Code Table 250.66. The secondary side neutral bond and XO connection sizes follow National Electrical Code requirements. Primary and secondary sides include phase conductors designated as phase A, phase B, and phase C. The equipment grounding conductor runs to the ground bus inside the transformer enclosure.
GROUNDING ELECTRODE CONDUCTOR CONNECTED TO GROUND BAR WITHIN ROOM. SIZE PER ONE LINE OR NEC TABLE 250.66. NOTE: SECONDARY SIDE PRIMARY SIDE NEUTRAL BOND SIZE PER NEC GROUND BUS NEUTRAL BUS Ø A Ø B Ø C Ø A Ø B Ø C Xo EG N XO CONNECTION SIZE PER NEC EG TRANSFORMER ENCLOSURE SECONDARY FEEDER
Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.
Start membership