Heh, I like to call them bracket fixtures when I'm referring to these generically. I'm not really sure what the "proper" name for them would be since every manufacturer has a different name for them.
Looks like the power lines are older too. Up in Ontario, how high are the distribution lines voltages? I know that they are higher than most places in the US but I am just curious.
13.8kV is the standard in my area. My street has 7200V, a single phase off a 13.8kV 3ph line. NGrid is basically all 13.8kV but there are probably a couple areas that are higher or maybe even lower.