The problem of pulling cables through asbestos ducts was raised in the Australian Senate two years ago. Hansard shows that this question was asked in the hearings on 30 May 2011 (p.104).
Q: “…whether the draft regulations will make any asbestos issues with pulling cables through existing telecommunication ducts safer or less safe, easier or more difficult, more or less expensive for the NBN project?”
A: No worries. Relax. It’s all under control. Thanks to “risk assessment”, “appropriate controls” and “reasonably practicable”…
“the process of pulling cables through existing asbestos cement telecommunication ducts should not need to be changed”.