Frost heaves? I'm sure modern practice is to bury lines in flexible jacketing and address the ingress into buildings better, but I've worked in a situation where buried conduit was clearly compromised at two sites, causing water (and mud) to pour into multiple buildings. That said, my neighborhood has buried electrical mains.
grimmfarmer t1_j3uc9lr wrote
Reply to Why doesn’t Vermont bury its power lines? by tcchen
Frost heaves? I'm sure modern practice is to bury lines in flexible jacketing and address the ingress into buildings better, but I've worked in a situation where buried conduit was clearly compromised at two sites, causing water (and mud) to pour into multiple buildings. That said, my neighborhood has buried electrical mains.