cell, 27 days ago

> The variations in the Earth's magnetic field tripped circuit breakers on Hydro-Québec's power grid. [11] The utility's very long transmission lines and the fact that most of Quebec sits on a large rock shield prevented current flowing through the earth, finding a less resistant path along the 735 kV power lines.[12]
> The James Bay network went offline in less than 90 seconds, giving Quebec its second massive power outage in 11 months.[13] The power failure lasted nine hours and forced the company to implement various mitigation strategies, including raising the trip level, installing series compensation on ultra high voltage lines and upgrading various monitoring and operational procedures.

:cat_blehhhhh:

guizzy, 27 days ago

@cell In 1998 we had freezing rain for 5 days that led to power outages that lasted up to a month for some regions in the south of the province.