News Possum circuit breaker 23/09/2021 FacebookTwitterEmail ALMOST COMPLETED: John Shanks from J&M Shanks General Engineering with one of the newly installed possum guards he has manufactured. By Leon Georgiou AIMED at stopping possums from causing power outages, SA Power Networks has installed guards on power poles for about 100kms […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password