PF: Power Factor.
L-L: Line to Line.
SMW: Secondary Main Wire (This is the wire between the transformer and the load point junction).
SDW: Service Drop Wire (This is the cable between the transformer or the load point junction to the customer load).
DG: Distribution Generation/Generator.
H.V: High Voltage.
L.V: Low Voltage.
PCC: Point of Common Coupling = Customer Meter Panel.
V.D: Voltage Drop.