hi,
i have a voltage drop situation where there is a 120/240 VAC 40A circuit #6 Aluminum run to a barn. about 200 feet.

the volatage is as follows:

L1 - N = 125V
L2 - N = 80V

L1 - Grnd = 125V
L2 - Grnd = 80V

L1 - L2 = 205V

everything was working fine for over a year. the homeowner had some digging done near the line. he said no breaker was tripped but he did see the line exposed while they were digging. he says he did not see them damage the line. we dug it up and the conduit (PVC) was pulled apart at the coupling.

could the backhoe have crimped the line or broken most of the strands?

if this is not the problem what could cause it?

reading at supply panel is normal for both legs.

thanks for any replies.

frodo