Hi,I'm an Aussie was doing a rewire in Sydney,total replacement of everything dating from the 1920s,old 2 phase service,240-415v had 2 meters,marked Consolidated Edison,240v 60cycle,2w 40 amps,young kid who was watching my daughter and me work,never seen a lady electrician before,said they should be 50Hz,asked if they were being overcharged.the POCO guys gave them to us,they didn't know either,any ideas?