Extreme cold temperatures can make old electrical infrastructure susceptible to break down. Older and obsolete electrical systems can become weak in cold climates because there are quite a bit of moving parts. They are like vehicles that run perfectly in warmer temperature and within the proper humidity range for which it is designed. New infrastructure can handle extreme temperatures but, overtime, those that are operating beyond their life span can have slowly diminished capacity when operating under extreme conditions.
All electrical systems are subjected to intense cold or heat which they can mostly withstand it as long as they are not also stressed. However, when the environment is too extreme, these devices will slow down and become less predictable than they normally would. This can even get worse when they are working over time or beyond their capacity. For instance, circuit breakers must open quickly to protect the system, to prevent short circuiting, and widespread loss of electricity during the harsh weather of winter.
For these reasons it is highly recommended to reinforce old infrastructure particularly in wintertime. Insulation must be properly fortified in order prevent electrical system malfunction during the cold weather. Contact ElecComm, for quality upgrade of infrastructure and power line repairs and maintenance.
source: nationalgeographic.com