David McLoughlin <davemcl@AXE*THISiprolink.co.nz> wrote: >As usual thanks for your pix. It is interesting to see the continued >re-use of steel spanwires with insulators after all those years of using >synthetic span wires without insulators. Talking about synthetic span wires, does anyone know why trams have two synthetic "ropes" running the length of the tram roof? -- Best wishes, Malcolm