On 09/07/2019 00:21, Greg Robinson wrote:
> Judging by what I have seen in Dandenong Rd and PallMall in Bendigo the centre poles seem to last about 100 years.
I'm sure that proximity to salt water reduces the lifespan. The pole pictured in the attached image had to be removed due to corrosion at the base not long after I made the pic.
Original poles were painted (usually with am aluminium paint) but not otherwise treated for corrosion resistance. Modern poles are galvanised steel.
I doubt that electrolysis would play a part; no-one with any sense would allow a 'hot pole' to stay in use.
Mal Rowe - by the sea in Saanich