What causes excessive voltage drop in a branch circuit?
Excessive voltage drop is usually caused by: • High resistance connections at wiring junctions or outlet terminals, including: • Poor splices anywhere in the circuit • Loose or corroded connections anywhere in the circuit • Inadequate seating of wire in the slot connection on push-in type receptacles and switches • The wire does not meet code (i.e., not heavy enough gauge for the length of the run).
