Not sure if it is the same or not...
DH once worked on a worksite as a contractor. Whacked his head on a scaffolding beam, that wasn't installed properly, but as he was a contractor on another person's site, he was covered by WorkCover. He didn't claim it but he was given the forms and the Dr etc signed them.
Had he wanted to claim he could have. So not sure it would be different - as a contractor working for someone else on their site, he would be covered by WorkCover I think.